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EX-32.1 - EX-32.1 - IXYS, LLCf58106exv32w1.htm
Table of Contents

 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 10-Q
     
(Mark One)
     
þ   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended December 31, 2010
or
     
o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ____________ to ____________
COMMISSION FILE NUMBER 000-26124
IXYS CORPORATION
(Exact name of registrant as specified in its charter)
     
DELAWARE   77-0140882
(State or other jurisdiction
of incorporation or organization)
  (I.R.S. Employer Identification No.)
1590 BUCKEYE DRIVE
MILPITAS, CALIFORNIA 95035-7418

(Address of principal executive offices and Zip Code)
(408) 457-9000
(Registrant’s telephone number, including area code)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes þ No o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Yes o No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.
             
Large accelerated filer o   Accelerated filer þ   Non-accelerated filer o (Do not check if a smaller reporting company)   Smaller reporting company o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes o No þ
The number of shares of the registrant’s common stock, $0.01 par value, outstanding as of January 31, 2011 was 31,250,473.
 
 

 


 

IXYS CORPORATION
FORM 10-Q
December 31, 2010
         
INDEX   Page
    3  
    3  
    3  
    4  
    5  
    6  
    19  
    29  
    29  
    30  
    30  
    30  
    43  
    43  
    43  
    43  
 EX-10.1
 EX-31.1
 EX-31.2
 EX-32.1

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PART I — FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
IXYS CORPORATION
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except share data)
                 
    December 31,     March 31,  
    2010     2010  
ASSETS
               
Current assets:
               
Cash and cash equivalents
  $ 68,956     $ 60,524  
Restricted cash
    882       813  
Accounts receivable, net of allowances of $3,243 at December 31, 2010 and $3,466 at March 31, 2010
    50,626       47,158  
Inventories
    78,001       65,583  
Prepaid expenses and other current assets
    5,435       5,219  
Deferred income taxes
    10,339       10,467  
 
           
Total current assets
    214,239       189,764  
Property, plant and equipment, net
    50,494       47,878  
Intangible assets, net
    9,533       15,013  
Goodwill
    9,170       9,125  
Deferred income taxes
    17,145       17,081  
Other assets
    7,824       6,435  
 
           
Total assets
  $ 308,405     $ 285,296  
 
           
 
               
LIABILITIES AND STOCKHOLDERS’ EQUITY
               
Current liabilities:
               
Current portion of capitalized lease obligations
  $ 2,796     $ 2,845  
Current portion of loans payable
    8,363       8,434  
Accounts payable
    17,479       17,762  
Accrued expenses and other current liabilities
    25,782       24,998  
 
           
Total current liabilities
    54,420       54,039  
Long term income tax payable
    6,192       6,233  
Capitalized lease obligations, net of current portion
    4,667       1,696  
Long term loans, net of current portion
    23,279       24,371  
Pension liabilities
    15,689       15,822  
 
           
Total liabilities
    104,247       102,161  
 
           
Commitments and contingencies (Note 17)
               
Stockholders’ equity:
               
Preferred stock, $0.01 par value:
               
Authorized: 5,000,000 shares; none issued and outstanding
               
Common stock, $0.01 par value:
               
Authorized: 80,000,000 shares; 37,116,853 issued and 31,217,266 outstanding at December 31, 2010 and 36,796,751 issued and 31,335,764 outstanding at March 31, 2010
    371       368  
Additional paid-in capital
    187,929       183,242  
Treasury stock, at cost: 5,899,587 common shares at December 31, 2010 and 5,460,987 common shares at March 31, 2010
    (49,667 )     (45,662 )
Retained earnings
    64,020       43,307  
Accumulated other comprehensive income
    1,505       1,880  
 
           
Total stockholders’ equity
    204,158       183,135  
 
           
Total liabilities and stockholders’ equity
  $ 308,405     $ 285,296  
 
           
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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IXYS CORPORATION
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
Net revenues
  $ 91,727     $ 64,032     $ 266,512     $ 166,663  
Cost of goods sold
    62,647       48,321       176,131       128,000  
 
                       
Gross profit
    29,080       15,711       90,381       38,663  
 
                       
Operating expenses:
                               
Research, development and engineering
    6,684       5,144       20,293       14,202  
Selling, general and administrative
    10,595       8,315       31,471       24,678  
Amortization of acquisition-related intangible assets
    1,630       502       5,476       505  
Restructuring charges
    515       32       566       1,042  
 
                       
Total operating expenses
    19,424       13,993       57,806       40,427  
 
                       
Operating income (loss)
    9,656       1,718       32,575       (1,764 )
Other income (expense):
                               
Interest income
    67       108       219       317  
Interest expense
    (389 )     (426 )     (1,204 )     (1,203 )
Other income (expense), net
    625       691       1,443       (1,702 )
 
                       
Income (loss) before income tax
    9,959       2,091       33,033       (4,352 )
Provision for income tax
    (2,653 )     (1,692 )     (12,320 )     (347 )
 
                       
Net income (loss)
  $ 7,306     $ 399     $ 20,713     $ (4,699 )
 
                       
 
                               
Net income (loss) per share
                               
Basic
  $ 0.23     $ 0.01     $ 0.66     $ (0.15 )
 
                       
Diluted
  $ 0.23     $ 0.01     $ 0.65     $ (0.15 )
 
                       
Weighted average shares used in per share calculation
                               
Basic
    31,096       31,100       31,210       30,893  
 
                       
Diluted
    32,071       31,269       31,877       30,893  
 
                       
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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IXYS CORPORATION
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
                 
    Nine Months Ended  
    December 31,  
    2010     2009  
Cash flows from operating activities:
               
Net income (loss)
  $ 20,713     $ (4,699 )
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
               
Depreciation and amortization
    13,705       9,130  
Provision for receivable allowances
    5,860       2,873  
Net change in inventory provision
    (4,344 )     3,056  
Foreign currency adjustments on intercompany amounts
    (794 )     1,235  
Stock-based compensation
    2,547       2,443  
(Gain) on investments and disposal of fixed assets
    (177 )     (157 )
Changes in operating assets and liabilities:
               
Accounts receivable
    (9,262 )     (685 )
Inventories
    (7,837 )     10,006  
Prepaid expenses and other current assets
    308       465  
Other assets
    (362 )     45  
Accounts payable
    (534 )     2,164  
Accrued expenses and other liabilities
    826       (2,579 )
Pension liabilities
    (306 )     (61 )
 
           
Net cash provided by operating activities
    20,343       23,236  
 
           
 
               
Cash flows from investing activities:
               
Change in restricted cash
    (69 )     (63 )
Business combination, net of cash and cash equivalents acquired
          (2,625 )
Purchases of investments
    (135 )     (554 )
Purchases of property and equipment
    (6,765 )     (2,565 )
Proceeds from sale of investments
    255       398  
 
           
Net cash used in investing activities
    (6,714 )     (5,409 )
 
           
 
               
Cash flows from financing activities:
               
Principal payments on capital lease obligations
    (2,373 )     (3,058 )
Repayments of loans and notes payable
    (1,040 )     (1,136 )
Proceeds from line of credit
          15,000  
Proceeds from employee equity plans
    2,142       1,026  
Purchase of treasury stock
    (4,005 )     (288 )
 
           
Net cash provided by (used in) financing activities
    (5,276 )     11,544  
 
           
Effect of exchange rate fluctuations on cash and cash equivalents
    79       1,684  
 
           
Net increase in cash and cash equivalents
    8,432       31,055  
Cash and cash equivalents at beginning of period
    60,524       55,441  
 
           
Cash and cash equivalents at end of period
  $ 68,956     $ 86,496  
 
           
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
1. Unaudited Condensed Consolidated Financial Statements
     The accompanying interim unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. The unaudited condensed consolidated financial statements include the accounts of IXYS Corporation and its wholly-owned subsidiaries. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and judgments that affect the amounts reported in the financial statements and accompanying notes. The accounting estimates that require management’s most difficult judgments include, but are not limited to, revenue reserves, inventory valuation, accounting for income taxes, allocation of purchase price in business combinations and restructuring costs. All significant intercompany transactions have been eliminated in consolidation. All adjustments of a normal recurring nature that, in the opinion of management, are necessary for a fair statement of the results for the interim periods have been made. The condensed balance sheet as of March 31, 2010 has been derived from our audited balance sheet as of that date. It is recommended that the interim financial statements be read in conjunction with our audited consolidated financial statements and notes thereto for the fiscal year ended March 31, 2010, or fiscal 2010, contained in our Annual Report on Form 10-K. Interim results are not necessarily indicative of the operating results expected for later quarters or the full fiscal year.
2. Recent Accounting Pronouncements
     In December 2010, the Financial Accounting Standards Board, or FASB, issued authoritative guidance on the disclosures about supplementary pro forma information for business combinations. The objective of the guidance is to clarify the acquisition date that should be used for reporting the pro forma financial information disclosures when comparative financial statements are presented. The guidance also improves the usefulness of the pro forma revenue and earnings disclosures by requiring a description of the nature and amount of material, nonrecurring pro forma adjustments that are directly attributable to the business combinations. The guidance is effective for us for the fiscal year beginning on April 1, 2011. We are currently evaluating the impact that the adoption of the guidance will have on our condensed consolidated financial statements.
     In December 2010, FASB issued authoritative guidance on the application of the goodwill impairment test for a reporting unit having a zero or negative carrying amount. The guidance modifies Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. For those reporting units, an entity is required to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists. The guidance is effective for us for the fiscal year beginning on April 1, 2011. We are currently evaluating the impact that the adoption of the guidance will have on our condensed consolidated financial statements.
     In July 2010, FASB issued authoritative guidance on the disclosures about the credit quality of financing receivables and the allowance for credit losses. The objective of the guidance is for an entity to provide disclosures that facilitate financial statement users’ evaluation of the nature of the credit risk, the analysis and assessment of the risk and the changes and reasons for those changes in the allowance for credit losses. We adopted the guidance in the quarter ended December 31, 2010. The adoption of the guidance did not have a significant impact on our condensed consolidated financial statements.
     In June 2009, FASB issued authoritative guidance on the consolidation of variable interest entities. The guidance eliminates a mandatory quantitative approach to determine whether a variable interest gives the entity a controlling financial interest in a variable interest entity in favor of a qualitatively focused analysis. It also requires an ongoing reassessment of whether an entity is the primary beneficiary. We adopted the guidance in the quarter ending June 30, 2010. The adoption of the guidance did not have a significant impact on our condensed consolidated financial statements.
3. Business Combination
     Zilog, Inc.
     On February 18, 2010, we completed the acquisition of Zilog, Inc., or Zilog, a supplier of application specific, embedded microcontroller units that are system-on-chip solutions for industrial and consumer markets. We acquired all outstanding shares as of the acquisition date for a cash consideration of $62.5 million, and Zilog became our wholly-owned subsidiary. The acquisition is intended to add digital control to our power management and to create more cost-effective system integration solutions for our diversified customer base.
     The following table summarizes the consideration paid for Zilog and the preliminary values of the assets acquired and liabilities assumed at the acquisition date.

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     Recognized amounts of identifiable assets acquired and liabilities assumed (in thousands):
         
    Preliminary Purchase  
    Price Allocation  
Cash, restricted cash and cash equivalents
  $ 35,237  
Trade receivables
    2,088  
Inventories
    3,406  
Property, plant and equipment
    1,373  
Deferred tax assets
    4,244  
Other assets
    4,163  
Identifiable intangible assets
    14,000  
Trade payables
    (1,869 )
Accruals and other liabilities
    (9,017 )
 
     
Total identifiable net assets
    53,625  
Goodwill
    8,865  
 
     
Total purchase price
  $ 62,490  
 
     
     The fair value of assets acquired included trade receivables of $3.3 million, of which an estimated $1.2 million was not expected to be collected, resulting in a fair value of $2.1 million. Other receivables, included above in other assets, were stated at their fair value and also approximate the gross contractual value of the receivable.
     Identifiable intangible assets consisted of developed intellectual property, customer relationships, contract backlog, trade name and information technology related assets. The valuation of the acquired intangibles was classified as a level 3 measurement under the fair value measurement guidance, because the valuation was based on significant unobservable inputs and involved management judgment and assumptions about market participants and pricing. In determining fair value of the acquired intangible assets, we determined the appropriate unit of measure, the exit market and the highest and best use for the assets. The income approach and royalty savings approach were used to estimate the fair value. The income approach indicates the fair value of an asset based on the value of the cash flows that the asset can be expected to generate in the future through a discounted cash flow method. The income approach was used to determine the fair values of developed intellectual property, contract backlog and customer relationships. We utilized a discount rate of 22% to value these intangibles using the income approach. The royalty savings approach was used to determine the fair value of the trade name and indicates the fair value of an asset based upon a 22% discount rate and a 1% royalty rate. The purchase price allocation table presented above reflects our preliminary determination of the fair values of the assets acquired and liabilities assumed. We are in the process of completing our review of income tax related effects in order to finalize the purchase price allocation during the quarter ended March 31, 2011. The goodwill is not deductible for tax purposes.
     Supplemental Pro Forma Financial Information (unaudited):
     The following pro forma summary gives effect to the acquisition of Zilog as if it had occurred at the beginning of fiscal 2010. The pro forma financial information reflects the business combination accounting effects resulting from this acquisition including our amortization charges from acquired intangible assets. The summary is provided for illustrative purposes only and is not necessarily indicative of the consolidated results of operations for future periods. The unaudited pro forma financial information includes the historical results of IXYS Corporation for the three and nine months ended December 31, 2009 and Zilog for the three and nine months ended December 26, 2009. The unaudited pro forma financial information for the three and nine months ended December 31, 2009 was as follows (in thousands, except per share data):
                 
    Three Months Ended     Nine Months Ended  
    December 31, 2009     December 31, 2009  
    (unaudited)  
Pro forma net revenues
  $ 72,702     $ 190,638  
 
           
Pro forma net income (loss)
  $ 47     $ (5,536 )
 
           
Pro forma net income (loss) per share (basic)
  $     $ (0.18 )
 
           
Pro forma net income (loss) per share (diluted)
  $     $ (0.18 )
 
           

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4. Fair Value
     We account for certain assets and liabilities at fair value. In determining fair value, we consider its principal or most advantageous market and the assumptions that market participants would use when pricing, such as inherent risk, restrictions on sale and risk of nonperformance. The fair value hierarchy is based upon the observability of inputs used in valuation techniques. Observable inputs (highest level) reflect market data obtained from independent sources, while unobservable inputs (lowest level) reflect internally developed market assumptions. The fair value measurements are classified under the following hierarchy:
Level 1 — Quoted prices for identical instruments in active markets.
Level 2 — Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs or significant value-drivers are observable in active markets.
Level 3 — Model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
     Assets and liabilities measured at fair value on a recurring basis, excluding accrued interest components, consisted of the following types of instruments as of December 31, 2010 and March 31, 2010 (in thousands):
                                                 
    December 31, 2010 (1)     March 31, 2010 (1)  
            Fair Value Measured at             Fair Value Measured at  
            Reporting Date Using             Reporting Date Using  
Description   Total     Level 1     Level 2     Total     Level 1     Level 2  
    (unaudited)     (unaudited)  
Marketable equity securities (2)
  $ 308     $ 308     $     $ 198     $ 198     $  
Auction rate preferred securities (2)
    375             375       375             375  
Derivative contract (3) (4)
    8             8       (109 )           (109 )
 
                                   
Total
  $ 691     $ 308     $ 383     $ 464     $ 198     $ 266  
 
                                   
 
(1)   We did not have any recurring assets whose fair value was measured using significant unobservable inputs.
 
(2)   Included in “Other assets” on our unaudited condensed consolidated balance sheets.
 
(3)   The derivative contract as of December 31, 2010 was included in “Prepaid expenses and other current assets” on our unaudited condensed consolidated balance sheets.
 
(4)   The derivative contract as of March 31, 2010 was included in “Accrued expenses and other current liabilities” on our unaudited condensed consolidated balance sheets.
     We measure our marketable securities and derivative contracts at fair value. Marketable securities are valued using the quoted market prices and are therefore classified as Level 1 estimates.
     We use derivative instruments to manage exposures to changes in interest rates, and the fair values of these instruments are recorded on the balance sheets. We have elected not to designate these instruments as accounting hedges. The changes in the fair value of these instruments are recorded in the current period’s statement of operations and are included in other income (expense), net. All of our derivative instruments are traded on over-the-counter markets where quoted market prices are not readily available. For those derivatives, we measure fair value using prices obtained from the counterparties with whom we have traded. The counterparties price the derivatives based on models that use primarily market observable inputs, such as yield curves and option volatilities. Accordingly, we classify these derivatives as Level 2. See Note 9, “Borrowing Arrangements” for further information regarding the terms of the derivative contract.
     Auction Rate Preferred Securities, or ARPS, are stated at par value based upon observable inputs including historical redemptions received from the ARPS issuers. All of our ARPS have AAA credit ratings, are 100% collateralized and continue to pay interest in accordance with their contractual terms. Additionally, the collateralized asset value ranges exceed the value of our ARPS by approximately 300 percent. Accordingly, the remaining ARPS balance of $375,000 is categorized as Level 2 for fair value measurement in accordance with the authoritative guidance provided by FASB and was recorded at full par value on the unaudited condensed consolidated balance sheets as of December 31, 2010 and March 31, 2010. We currently believe that the ARPS values are not impaired and as such, no impairment has been recognized against the investment. If future auctions fail to materialize and the credit rating of the issuers deteriorates, we may be required to record an impairment charge against the value of our ARPS.

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     Cash and cash equivalents are recognized and measured at fair value in our consolidated financial statements. Accounts receivable and prepaid expenses and other current assets are financial assets with carrying values that approximate fair value. Accounts payable and accrued expenses and other current liabilities are financial liabilities with carrying values that approximate fair value.
     Long term loans, which primarily consist of loans from banks, approximate fair value as the interest rates either adjust according to the market rates or the interest rates approximate the market rates at December 31, 2010. See Note 11, “Pension Plans” for a discussion of pension liabilities.
5. Other Assets
     Other assets consist of the following (in thousands):
                 
    December 31,     March 31,  
    2010     2010  
    (unaudited)  
Available-for-sale investment securities
  $ 683     $ 573  
Long term equity investment
    4,475       4,446  
Advance to vendors and other items
    2,666       1,416  
 
           
Total
  $ 7,824     $ 6,435  
 
           
6. Inventories
     Inventories consist of the following (in thousands):
                 
    December 31,     March 31,  
    2010     2010  
    (unaudited)  
Raw materials
  $ 21,425     $ 12,216  
Work in process
    36,888       35,339  
Finished goods
    19,688       18,028  
 
           
Total
  $ 78,001     $ 65,583  
 
           
7. Accrued Expenses and Other Liabilities
     Accrued expenses and other liabilities consist of the following (in thousands):
                 
    December 31,     March 31,  
    2010     2010  
    (unaudited)  
Uninvoiced goods and services
  $ 12,052     $ 11,029  
Compensation and benefits
    6,210       6,876  
Income taxes
    3,766       2,763  
Restructuring accrual
    993       1,205  
Commission, royalties, deferred revenue and other
    2,761       3,125  
 
           
Total
  $ 25,782     $ 24,998  
 
           
8. Goodwill and Intangible Assets
     Goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired in connection with two acquisitions completed during fiscal 2010. The acquisition of businesses from Leadis Technology, Inc., or Leadis, was completed in September 2009 and resulted in goodwill of $304,000. The acquisition of Zilog was completed in February 2010 and resulted in preliminary goodwill of $8.9 million.

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     The following table summarizes the components of the acquired identifiable intangible assets associated with the Zilog and Leadis acquisitions. The fair value of the amortizable intangible assets was determined using the income approach, royalty savings approach and cost approach.
                         
    Acquisition Date             Estimated  
    Fair Value     Amortization     Useful Life  
    (In thousands)     Method     (In months)  
Leadis
           
Developed intellectual property
  $ 1,200     Straight-line     24  
Customer relationships
    210     Straight-line     24  
Contract backlog
    1,170     Straight-line     12  
Non-compete agreement
    20     Straight-line     24  
Trade name
    210     Straight-line     24  
 
                     
Total for Leadis
  $ 2,810                  
 
                     
Zilog
                       
Developed intellectual property
  $ 4,800     Straight-line     72  
Customer relationships
    6,100     Accelerated     37  
Contract backlog
    2,000     Straight-line     12  
Trade name
    1,100     Straight-line     72  
 
                     
Total for Zilog
  $ 14,000                  
 
                     
 
                       
 
                     
Total acquired intangible assets
  $ 16,810                  
 
                     
     Identified intangible assets consisted of the following as of December 31, 2010 (in thousands):
                         
    Gross Intangible     Accumulated     Net Intangible  
    Assets     Amortization     Assets  
Developed intellectual property
  $ 6,000     $ 1,410     $ 4,590  
Customer relationships
    6,310       2,765       3,545  
Contract backlog
    3,170       2,845       325  
Other intangible assets
    1,414       341       1,073  
 
                 
Total identifiable intangible assets
  $ 16,894     $ 7,361     $ 9,533  
 
                 
     Identified intangible assets consisted of the following as of March 31, 2010 (in thousands):
                         
    Gross Intangible     Accumulated     Net Intangible  
    Assets     Amortization     Assets  
Developed intellectual property
  $ 6,000     $ 366     $ 5,634  
Customer relationships
    6,310       644       5,666  
Contract backlog
    3,170       753       2,417  
Other intangible assets
    1,414       118       1,296  
 
                 
Total identifiable intangible assets
  $ 16,894     $ 1,881     $ 15,013  
 
                 
     As of December 31, 2010, estimated amortization expenses for the next five years are as follows (in thousands): remainder of fiscal year 2011, $1,451; fiscal year 2012, $2,972; fiscal year 2013, $2,150; fiscal year 2014, $968; and thereafter, $1,992.
9. Borrowing Arrangements
     Bank of the West
     On November 13, 2009, we entered into a credit agreement for a revolving line of credit with Bank of the West, or BOW, under which we could borrow up to $15.0 million and all amounts owed under the credit agreement were due and payable on October 31,

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2011. On December 29, 2010, we entered into an amendment with BOW to increase the line of credit to $20.0 million and to extend the expiration date to October 31, 2013. Borrowings may be repaid and re-borrowed during the term of the credit agreement. The obligations are guaranteed by two of our subsidiaries. At December 31, 2010, the outstanding principal balance under the credit agreement was $15.0 million.
     The credit agreement provides different interest rate alternatives under which we may borrow funds. We may elect to borrow based on LIBOR plus a margin, an alternative base rate plus a margin or a floating rate plus a margin. The margin can range from 1.5% to 3.25%, depending on interest rate alternatives and on our leverage of liabilities to effective tangible net worth. The effective interest rate as of December 31, 2010 was 3.04%.
     The credit agreement is subject to a set of financial covenants, including minimum effective tangible net worth, the ratio of cash, cash equivalents and accounts receivable to current liabilities, profitability, a ratio of EBITDA to interest expense and a minimum amount of U.S. domestic cash on hand. At December 31, 2010, we complied with all of these financial covenants.
     The credit agreement also includes a $3.0 million letter of credit subfacility. See Note 17, “Commitments and Contingencies” for further information regarding the terms of the subfacility.
     IKB Deutsche Industriebank
     On June 10, 2005, IXYS Semiconductor GmbH, our German subsidiary, borrowed €10.0 million, or about $12.2 million at the time, from IKB Deutsche Industriebank for a term of 15 years. The outstanding balance at December 31, 2010 was €6.3 million, or $8.4 million.
     The interest rate on the loan is determined by adding the then effective three month Euribor rate and a margin. The margin can range from 70 basis points to 125 basis points, depending on the calculation of a ratio of indebtedness to cash flow for our German subsidiary. In June 2010, we entered into an interest rate swap agreement commencing June 30, 2010. The swap agreement has a fixed interest rate of 1.99% and expires on June 30, 2015. It is not designated as a hedge in the financial statements. See Note 4, “Fair Value” for further information regarding the derivative contract.
     During each fiscal quarter, a principal payment of €167,000, or about $221,000, and a payment of accrued interest are required. Financial covenants for a ratio of indebtedness to cash flow, a ratio of equity to total assets and a minimum stockholders’ equity for the German subsidiary must be satisfied for the loan to remain in good standing. The loan may be prepaid in whole or in part at the end of a fiscal quarter without penalty. At December 31, 2010, we complied with the financial covenants. The loan is partially collateralized by a security interest in the facility owned by our company in Lampertheim, Germany.
     LaSalle Bank National Association
     On August 2, 2007, IXYS Buckeye, LLC, a subsidiary of our company, entered into an Assumption Agreement with LaSalle Bank National Association, trustee for Morgan Stanley Dean Witter Capital I Inc., for the assumption of a loan of $7.5 million in connection with the purchase of property in Milpitas, California. The loan carried a fixed annual interest rate of 7.455%. Monthly payments of principal and interest of $56,000 were due under the loan. In addition, monthly impound payments aggregating $14,000 were made for items such as real property taxes, insurance and capital expenditures. The loan was repaid in full on February 1, 2011.
     Note payable issued in acquisition
     On September 10, 2008, we issued a note payable with a face value of $2.0 million in connection with the purchase of real property and the acquisition of the shares of Reaction Technology Incorporated, or RTI. The note is repayable in 60 equal monthly installments of $38,666, which includes interest at an annual rate of 6.0%. The note is collateralized by a security interest in the property acquired and the current assets of RTI.
10. Restructuring Charges
     In the quarter ended September 30, 2009, we initiated plans to restructure our European manufacturing and assembly operations to align them to current market conditions. The plans primarily involved the termination of employees and centralization of certain positions. Costs related to termination of employees represented severance payments and benefits.
     During the quarter ended December 31, 2010, we relocated the Zilog employees to our headquarters in Milpitas and vacated the facility in San Jose, California, as a part of our integration plan to reduce costs. As a result, we took a charge of $442,000 for future costs that will continue to be incurred during the remaining term of the San Jose lease.

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     The costs in connection with restructuring plan in Europe and Zilog lease and exit costs have been included under “Restructuring charges” in our unaudited condensed consolidated statements of operations. The restructuring accrual as of December 31, 2010 was included under “Accrued expenses and other current liabilities” on our unaudited condensed consolidated balance sheets.
     Restructuring activity as of and for the three and nine months ended December 31, 2010 was as follows (in thousands):
                         
    Severance and     Lease        
    Related Benefits     Commitment Accrual     Total  
Balance at March 31, 2010
  $ 1,205     $     $ 1,205  
Charges
    47             47  
Cash payments
    (512 )           (512 )
Currency translation adjustment
    (89 )           (89 )
 
                 
Balance at June 30, 2010
  $ 651     $     $ 651  
 
                 
Charges
    4             4  
Cash payments
    (175 )           (175 )
Currency translation adjustment
    65             65  
 
                 
Balance at September 30, 2010
  $ 545     $     $ 545  
 
                 
Charges
    73       442       515  
Cash payments
    (53 )           (53 )
Currency translation adjustment
    (14 )           (14 )
 
                 
Balance at December 31, 2010
  $ 551     $ 442     $ 993  
 
                 
     We anticipate that the remaining restructuring obligations of $993,000 as of December 31, 2010 will be paid by September 30, 2012.
11. Pension Plans
     We maintain three defined benefit pension plans: one for United Kingdom employees, one for German employees, and one for Philippine employees. These plans cover most of the employees in the United Kingdom, Germany and the Philippines. Benefits are based on years of service and the employees’ compensation. We deposit funds for these plans, consistent with the requirements of local law, with investment management companies, insurance companies, banks or trustees and/or accrue for the unfunded portion of the obligations. The measurement date for the projected benefit obligations and the plan assets is March 31. The United Kingdom and German plans have been curtailed. As such, the plans are closed to new entrants and no credit is provided for additional periods of service. We expect to contribute approximately $752,000 to these two plans in the fiscal year ending March 31, 2011. This contribution is primarily contractual.
     In connection with the Zilog acquisition in February 2010, we assumed the defined benefit plan for the local employees of Zilog’s Philippine subsidiary. As of December 31, 2010, the pension plan was overfunded by approximately $257,000. The overfunding was included under “Other assets” on our unaudited condensed consolidated balance sheet.
     The net periodic pension expense includes the following components (in thousands):
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
    (unaudited)     (unaudited)  
Service cost
  $ 18     $     $ 52     $  
Interest cost on projected benefit obligation
    529       497       1,542       1,458  
Expected return on plan assets
    (393 )     (257 )     (1,149 )     (759 )
Recognized actuarial loss
    47       31       137       91  
 
                       
Net periodic pension expense
  $ 201     $ 271     $ 582     $ 790  
 
                       

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12. Employee Equity Incentive Plans
     Stock Purchase and Stock Option Plans
     The 2009 Equity Incentive Plan
     Stock Options
     On September 10, 2009, our stockholders approved the 2009 Equity Incentive Plan, or the 2009 Plan, under which 900,000 shares of our common stock are reserved for the grant of stock options.
     Under the 2009 Plan, nonqualified and incentive stock options may be granted to employees, consultants and non-employee directors. Generally, the per share exercise price shall not be less than 100% of the fair market value of a share on the grant date. The Board of Directors has the full power to determine the provisions of each option issued under the 2009 Plan. While we may grant options that become exercisable at different times or within different periods, we have granted options that primarily vest over four years. The options, once granted, expire ten years from the date of grant.
     Restricted Stock
     Restricted stock awards may be granted to any employee, director or consultant under the 2009 Plan. Pursuant to a restricted stock award, we will issue shares of common stock that will be released from restriction if certain requirements, including continued performance of services, are met.
     Stock Appreciation Rights
     Awards of stock appreciation rights, or SARs, may be granted to employees, consultants and nonemployee directors pursuant to the 2009 Plan. In any event, the exercise price of a SAR shall be not less than 100% of the fair market value of a share on the grant date and shall expire no later than ten years from the grant date. Upon exercise, the holder of SAR shall be entitled to receive payment either in cash or a number of shares by dividing such cash amount by the fair market value of a share on the exercise date.
     Performance Units
     Performance units may be granted to employees, consultants and nonemployee directors under the 2009 Plan. Each performance unit shall have a value equal to the fair market value of one share. After the applicable performance period has ended, the holder will be entitled to receive a payment, either in cash or in the form of shares, based on the number of performance units earned over the performance period, to be determined as a function of the extent to which the corresponding performance goals or other vesting provisions have been achieved.
     Zilog 2004 Omnibus Stock Incentive Plan
     The Zilog 2004 Omnibus Stock Incentive Plan, or the Zilog 2004 Plan, was approved by the stockholders of Zilog in 2004, and was amended and approved by the stockholders of Zilog in 2007. In connection with the acquisition of Zilog, our Board of Directors approved assumption of the Zilog 2004 Plan. Employees of Zilog and persons first employed by our company after the closing of the acquisition of Zilog may receive grants under the Zilog 2004 Plan. Under the 2004 Plan, incentive stock options, non-statutory stock options, or restricted shares may be granted. At the time of the assumption of the Zilog 2004 Plan by our company, up to 652,963 shares of our common stock were available for grant under the plan.
     Zilog 2002 Omnibus Stock Incentive Plan
     The Zilog 2002 Omnibus Stock Incentive Plan, or the Zilog 2002 Plan, was adopted in 2002. In connection with the acquisition of Zilog, our Board of Directors approved the assumption of the Zilog 2002 Plan with respect to the shares available for grant as stock options. Employees of Zilog and persons first employed by our company after the closing of the acquisition of Zilog may receive grants under the Zilog 2002 Plan. At the time of the assumption of the Zilog 2002 Plan by our company, up to 366,589 shares of our common stock were available for grant under the plan.
     Employee Stock Purchase Plan
     In May 1999, the Board of Directors approved the 1999 Employee Stock Purchase Plan, or the Purchase Plan, and reserved 500,000 shares of common stock for issuance under the Purchase Plan. Under the Purchase Plan, all eligible employees may purchase our common stock at a price equal to 85% of the lower of the fair market value at the beginning of the offer period or the semi-annual purchase date. Stock purchases are limited to 15% of an employee’s eligible compensation. On July 31, 2007 and July 9, 2010, the Board of Directors amended the Purchase Plan and on each occasion reserved an additional 350,000 shares of common stock for

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issuance under the Purchase Plan. During the three and nine months ended December 31, 2010, there were 49,339 shares and 92,306 shares purchased under the Purchase Plan, leaving approximately 406,000 shares available for purchase under the plan in the future.
     Stock-Based Compensation
     The following table summarizes the effects of stock-based compensation charges (in thousands):
                                 
    Three Months Ended December 31,     Nine Months Ended December 31,  
Income Statement Classifications   2010     2009     2010     2009  
    (unaudited)     (unaudited)  
Selling, general and administrative expenses
  $ 914     $ 702     $ 2,547     $ 2,443  
 
                       
Stock-based compensation effect in income before taxes
    914       702       2,547       2,443  
Provision for income taxes (1)
    347       267       968       928  
 
                       
Net stock-based compensation effects in net income
  $ 567     $ 435     $ 1,579     $ 1,515  
 
                       
 
(1)   Estimated at a statutory income tax rate of 38% in fiscal year 2011 and 38% in fiscal year 2010.
     During the three and nine months ended December 31, 2010, the unaudited condensed consolidated statements of operations and cash flows do not reflect any tax benefit for the tax deduction from option exercises and other awards. As of December 31, 2010, approximately $5.6 million in stock-based compensation is to be recognized for unvested stock options granted under our equity incentive plans. The unrecognized compensation cost is expected to be recognized over a weighted average period of 2.3 years.
     The Black-Scholes option pricing model is used to estimate the fair value of options granted under our equity incentive plans and rights to acquire stock granted under our stock purchase plan. The weighted average estimated fair values of employee stock option grants and rights granted under the 1999 Employee Stock Purchase Plan, as well as the weighted average assumptions that were used in calculating such values during the three and nine months ended December 31, 2010 and 2009, were based on estimates at the date of grant as follows:
                                                         
    Stock Options (1)     Purchase Plan (2)  
    Three Months     Nine Months     Three Months     Nine Months  
    Ended December 31,     Ended December 31,     Ended December 31,     Ended December 31,  
    2009     2010     2009     2010     2009     2010     2009  
Weighted average estimated fair value of grant per share
  $ 2.94     $ 4.70     $ 3.49     $ 2.51     $ 3.20     $ 2.85     $ 4.19  
Risk-free interest rate
    2.3 %     1.9 %     2.3 %     0.2 %     0.3 %     0.3 %     0.4 %
Expected term in years
    4.6       5.82       5.00       0.5       0.5       0.5       0.5  
Volatility
    51.6 %     56.1 %     57.0 %     45.1 %     53.2 %     49.3 %     80.1 %
Dividend yield
    0 %     0 %     0 %     0 %     0 %     0 %     0 %
 
(1)   No stock options were granted during the quarter ended December 31, 2010.
 
(2)   Under the stock purchase plan, rights to purchase shares are only granted during the first and third quarters of each fiscal year.

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     Activity with respect to outstanding stock options for the nine months ended December 31, 2010 was as follows:
                         
            Weighted Average        
    Number of     Exercise Price Per     Intrinsic  
    Shares     Share     Value (1)  
                    (000)  
Balance at March 31, 2010
    5,188,273     $ 9.32          
Options granted
    655,000     $ 8.90          
Options exercised
    (204,246 )   $ 7.34     $ 722  
Options cancelled
    (20,000 )   $ 6.97          
Options expired
    (217,853 )   $ 19.55          
 
                     
Balance at December 31, 2010
    5,401,174     $ 8.94          
 
                       
Exercisable at December 31, 2010
    3,715,670     $ 9.24          
Exercisable at March 31, 2010
    3,468,398     $ 9.98          
 
(1)   Represents the difference between the exercise price and the value of our common stock at the time of exercise.
     Activity with respect to outstanding restricted stock units for the nine months ended December 31, 2010 was as follows:
                         
                   
    Number of     Weighted Average Grant     Aggregate Fair  
    Shares     Date Fair Value     Value (1)  
                    (000)  
Balance at March 31, 2010
    32,200     $ 9.58          
RSUs vested (2)
    (32,200 )   $ 9.58     $ 292  
 
                     
Balance at December 31, 2010
                     
 
                     
 
(1)   For restricted stock units, represents value of our common stock on the date the restricted stock unit vests.
 
(2)   The number of restricted stock units vested includes shares that were withheld on behalf of employees to satisfy the statutory tax withholding requirements.
13. Comprehensive Income (Loss)
     The components of total comprehensive income (loss) and related tax effects were as follows (in thousands):
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
    (unaudited)     (unaudited)  
Net income (loss)
  $ 7,306     $ 399     $ 20,713     $ (4,699 )
Unrealized gain (loss) on available-for-sale investment securities, net of taxes of $13 and $(13) for the three and nine months ended December 31, 2010 and net of taxes of $4 and $22 for the three and nine months ended December 31, 2009
    24       7       (24 )     41  
Adjustment to unrecognized actuarial net loss
                58        
Foreign currency translation adjustments
    (2,030 )     (1,053 )     (409 )     5,667  
 
                       
Total comprehensive income (loss)
  $ 5,300     $ (647 )   $ 20,338     $ 1,009  
 
                       

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     The components of accumulated other comprehensive income, net of tax, at the end of each period were as follows (in thousands):
                 
    December 31,     March 31,  
    2010     2010  
    (unaudited)  
Accumulated net unrealized gain on available-for-sale investments securities, net of taxes of $2 at December 31, 2010 and $15 at March 31, 2010
  $ 3     $ 27  
Unrecognized actuarial loss, net of tax of $(1,532) at December 31, 2010 and $(1,685) at March 31, 2010
    (3,976 )     (4,034 )
Accumulated foreign currency translation adjustments
    5,478       5,887  
 
           
Total accumulated other comprehensive income
  $ 1,505     $ 1,880  
 
           
14. Computation of Net Income (Loss) per Share
     Basic and diluted earnings (loss) per share are calculated as follows (in thousands, except per share amounts):
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
    (unaudited)     (unaudited)  
Basic:
                               
Weighted average shares
    31,096       31,100       31,210       30,893  
 
                       
Net income (loss)
  $ 7,306     $ 399     $ 20,713     $ (4,699 )
 
                       
Net income (loss) per share
  $ 0.23     $ 0.01     $ 0.66     $ (0.15 )
 
                       
Diluted:
                               
Weighted average shares
    31,096       31,100       31,210       30,893  
Common equivalent shares from stock options
    975       169       667        
 
                       
Weighted average shares used in diluted per share calculation
    32,071       31,269       31,877       30,893  
 
                       
Net income (loss)
  $ 7,306     $ 399     $ 20,713     $ (4,699 )
 
                       
Net income (loss) per share
  $ 0.23     $ 0.01     $ 0.65     $ (0.15 )
 
                       
     Basic net income (loss) available per common share is computed using net income (loss) and the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed using net income (loss) and the weighted average number of common shares outstanding, assuming dilution, which includes potentially dilutive common shares outstanding during the period. Potentially dilutive common shares include the assumed exercise of stock options and assumed vesting of restricted stock units using the treasury stock method. During the three and nine months ended December 31, 2010, there were outstanding weighted average options to purchase 1,663,531 and 2,114,978 shares that were not included in the computation of diluted net income per share since the exercise prices of the options exceeded the market price of the common stock. These options could dilute earnings per share in future periods if the market price of the common stock increases. For the quarter ended December 31, 2009, we excluded 4.7 million outstanding stock options from the calculation of net income per share because the exercise price of these stock options were greater than or equal to the average market value of the common shares. Due to our net loss for the nine months ended December 31, 2009, outstanding stock options and restricted stock units to purchase 1.1 million shares of our common stock were excluded from the diluted net loss per share calculation because their inclusion would have been anti-dilutive.

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15. Segment Information
     We have a single operating segment. This operating segment is comprised of semiconductor products used primarily in power-related applications. While we have separate legal subsidiaries with discrete financial information, we have one chief operating decision maker with highly integrated businesses. Our net revenues by major geographic area (based on destination) were as follows (in thousands):
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
    (unaudited)     (unaudited)  
United States
  $ 23,521     $ 17,315     $ 74,785     $ 49,810  
Europe and the Middle East
                               
France
    1,972       1,297       5,085       3,104  
Germany
    10,493       6,807       29,596       18,571  
United Kingdom
    6,941       3,770       21,169       9,808  
Other
    12,984       9,297       34,595       23,871  
Asia Pacific
                               
China
    18,770       14,584       50,829       32,788  
Japan
    2,683       3,145       9,439       7,363  
Korea
    2,238       2,216       7,312       5,114  
Singapore
    3,177       399       8,455       1,238  
Taiwan
    2,546       1,113       7,491       2,373  
Other
    2,739       1,375       7,888       4,914  
Rest of the World
                               
India
    2,451       1,631       5,697       4,721  
Other
    1,212       1,083       4,171       2,988  
 
                       
Total
  $ 91,727     $ 64,032     $ 266,512     $ 166,663  
 
                       
     The following table sets forth net revenues for each of our product groups for the three and nine months ended December 31, 2010 and 2009 (in thousands):
                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
    (unaudited)     (unaudited)  
Power semiconductors
  $ 63,563     $ 43,662     $ 182,074     $ 122,950  
Integrated circuits
    20,267       15,306       64,742       30,047  
Systems and RF power semiconductors
    7,897       5,064       19,696       13,666  
 
                       
Total
  $ 91,727     $ 64,032     $ 266,512     $ 166,663  
 
                       
     For the three months ended December 31, 2010, two distributors accounted for 12.7% and 10.9% of our net revenues, respectively. For the nine months ended December 31, 2010, two distributors accounted for 12.3% and 11.7% of our net revenues, respectively. For the three and nine months ended December 31, 2009, one distributor accounted for 10.4% and 11.3% of our net revenues, respectively.
16. Income Taxes
     For the three and nine months ended December 31, 2010, we recorded income tax provisions of $2.7 million and $12.3 million, reflecting effective tax rates of 26.6% and 37.3%, respectively. For the three and nine months ended December 31, 2009, we recorded income tax provisions of $1.7 million and $347,000, reflecting effective tax rates of 80.9% and 8.0%, respectively. For the three months ended December 31, 2010, the effective tax rate was affected by certain discrete items offset by changes in the estimates of

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annual income in foreign jurisdictions based on nine months of experience. For the nine months ended December 31, 2010, the effective tax rate was affected by certain discrete items. For the three months ended December 31, 2009, the provision for income tax represented the adjustment of the income tax account to reflect a change in our estimated income taxes for the year based on nine months of experience, offset by a favorable impact on the reversal of accrued income tax expenses following conclusion of an audit in a foreign tax jurisdiction. The provision for income tax for the nine months ended December 31, 2009, was incurred because we had losses in certain jurisdictions with comparatively lower tax rates, partially offset by the release of valuation allowance.
17. Commitments and Contingencies
Legal Proceedings
     We are currently involved in a variety of legal matters that arise in the normal course of business. Based on information currently available, management does not believe that the ultimate resolution of these matters will have a material adverse effect on our financial condition, results of operations and cash flows. Were an unfavorable ruling to occur, there exists the possibility of a material adverse impact on the results of operations of the period in which the ruling occurs.
Bank of the West
     On November 13, 2009, we entered into a credit agreement with BOW. The credit agreement includes a letter of credit subfacility, under which BOW agrees to issue letters of credit of up to $3.0 million. However, borrowing under this subfacility is limited to the extent of availability under the revolving line of credit. See Note 9, “Borrowing Arrangements” for further information regarding the terms of the credit agreement.
Other Commitments and Contingencies
     On occasion, we provide limited indemnification to customers against intellectual property infringement claims related to our products. To date, we have not experienced significant activity or claims related to such indemnifications. We also provide in the normal course of business indemnification to our officers, directors and selected parties. We are unable to estimate any potential future liability, if any. Therefore, no liability for these indemnification agreements has been recorded as of December 31, 2010 and March 31, 2010.

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ITEM 2.  MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
     This discussion contains forward-looking statements, which are subject to certain risks and uncertainties, including, without limitation, those described elsewhere in this Form 10-Q and, in particular, in Item 1A of Part II hereof. Actual results may differ materially from the results discussed in the forward-looking statements. For a discussion of risks that could affect future results, see “Item 1A. Risk Factors.” All forward-looking statements included in this document are made as of the date hereof, based on the information available to us as of the date hereof, and we assume no obligation to update any forward-looking statement, except as may be required by law.
Overview
     We are a multi-market integrated semiconductor company. Our three principal product groups are: power semiconductors; integrated circuits, or ICs; and systems and radio frequency, or RF, power semiconductors.
     Our power semiconductors improve system efficiency and reliability by converting electricity at relatively high voltage and current levels into the finely regulated power required by electronic products. We focus on the market for power semiconductors that are capable of processing greater than 200 watts of power.
     We also design, manufacture and sell integrated circuits for a variety of applications. Our analog and mixed signal ICs are principally used in telecommunications applications. Our mixed signal application specific ICs, or ASICs, address the requirements of the medical imaging equipment and display markets. Our power management and control ICs are used in conjunction with power semiconductors. Our microcontrollers provide application specific, embedded system-on-chip, or SoC, solutions for the industrial and consumer markets.
     Our systems include laser diode drivers, high voltage pulse generators and modulators, and high power subsystems, sometimes known as stacks, that are principally based on our high power semiconductor devices. Our RF power semiconductors enable circuitry that amplifies or receives radio frequencies in wireless and other microwave communication applications, medical imaging applications and defense and space applications.
     In the quarter ended December 31, 2010 as compared to the immediately preceding quarter, sales of power semiconductors and systems and RF power semiconductors increased, whereas the sale of ICs declined, primarily because of reduced sales to the telecom market. Demand for our power semiconductors has led to capacity issues, which we are addressing by increasing capital expenditures. In the quarter ended December 31, 2010 as compared to the immediately preceding quarter, gross profit margin fell because of increased unabsorbed manufacturing overhead caused in part by holiday shutdowns, adverse product mix, including decreased revenues from power semiconductors sold to the higher margin medical market and decreased revenues from ICs, and reduced utilization or sale of previously written down inventory.
     During the current fiscal year, distribution revenues have remained largely constant while revenues from original equipment manufacturers increased. In addition, our selling, general and administrative expenses, or SG&A expenses, and our research, development and engineering expenses, or R&D expenses, have remained relatively flat. In future periods, both our SG&A and R&D expenses are expected to continue at approximately these levels in terms of percentages of net revenues.
Critical Accounting Policies and Significant Management Estimates
     The discussion and analysis of our financial condition and results of operations are based upon our unaudited condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities. On an ongoing basis, management evaluates the reasonableness of its estimates. Management bases its estimates on historical experience and on various assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily available from other sources. Actual results may differ materially from these estimates under different assumptions or conditions.
     We believe the following critical accounting policies require that we make significant judgments and estimates in preparing our consolidated financial statements.
     Revenue recognition. We sell to distributors and original equipment manufacturers. Approximately 56.0% of our net revenues in the nine months ended December 31, 2010 and 49.7% of our net revenues in the nine months ended December 31, 2009 were from distributors. We provide some of our distributors with the following programs: stock rotation and ship and debit. Ship and debit is a sales incentive program for products previously shipped to distributors. We recognize revenue from product sales upon shipment provided that we have received a purchase order, the price is fixed and determinable, the risk of loss has transferred, collection of

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resulting receivables is reasonably assured, there are no customer acceptance requirements and there are no remaining significant obligations. Our shipping terms are generally FOB shipping point. Reserves for allowances are also recorded at the time of shipment. Our management must make estimates of potential future product returns and so called “ship and debit” transactions related to current period product revenue. Our management analyzes historical returns and ship and debit transactions, current economic trends and changes in customer demand and acceptance of our products when evaluating the adequacy of the sales returns and allowances. Significant management judgments and estimates must be made and used in connection with establishing the allowances in any accounting period. We have visibility into inventory held by our distributors to aid in our reserve analysis. Different judgments or estimates would result in material differences in the amount and timing of our revenue for any period.
     Accounts receivable from distributors are recognized and inventory is relieved when title to inventories transfer, typically upon shipment from our company, at which point we have a legally enforceable right to collection under normal payment terms. Under certain circumstances, where our management is not able to reasonably and reliably estimate the actual returns, revenues and costs relating to distributor sales are deferred until products are sold by the distributors to their end customers. Deferred amounts are presented net and included under accrued expenses and other liabilities.
     We state our net revenues net of any taxes collected from customers that are required to be remitted to the various government agencies. The amount of taxes collected from customers and payable to government agencies is included under accrued expenses and other liabilities. Shipping and handling costs are included in cost of sales.
     Allowance for sales returns. We maintain an allowance for sales returns for estimated product returns by our customers. We estimate our allowance for sales returns based on our historical return experience, current economic trends, changes in customer demand, known returns we have not received and other assumptions. If we were to make different judgments or utilize different estimates, the amount and timing of our revenue could be materially different. Given that our revenues consist of a high volume of relatively similar products, to date our actual returns and allowances have not fluctuated significantly from period to period, and our returns provisions have historically been reasonably accurate. This allowance is included as part of the accounts receivable allowance on the balance sheet and as a reduction of revenues in the statement of operations.
     Allowance for stock rotation. We also provide “stock rotation” to select distributors. The rotation allows distributors to return a percentage of the previous six months’ sales in exchange for orders of an equal or greater amount. In the nine months ended December 31, 2010 and 2009, approximately $599,000 and $1.0 million, respectively, of products were returned to us under the program. We establish the allowance for all sales to distributors except in cases where the revenue recognition is deferred and recognized upon sale by the distributor of products to the end-customer. The allowance, which is management’s best estimate of future returns, is based upon the historical experience of returns and inventory levels at the distributors. This allowance is included as part of the accounts receivable allowance on the balance sheet and as a reduction of revenues in the statement of operations. Should distributors increase stock rotations beyond our estimates, our statements would be adversely affected.
     Allowance for ship and debit. Ship and debit is a program designed to assist distributors in meeting competitive prices in the marketplace on sales to their end customers. Ship and debit requires a request from the distributor for a pricing adjustment for a specific part for a customer sale to be shipped from the distributor’s stock. We have no obligation to accept this request. However, it is our historical practice to allow some companies to obtain pricing adjustments for inventory held. We receive periodic statements regarding our products held by our distributors. Our distributors had approximately $15.0 million in inventory of our products on hand at December 31, 2010. Ship and debit authorizations may cover current and future distributor activity for a specific part for sale to the distributor’s customer. At the time we record sales to the distributors, we provide an allowance for the estimated future distributor activity related to such sales since it is probable that such sales to distributors will result in ship and debit activity. The sales allowance requirement is based on sales during the period, credits issued to distributors, distributor inventory levels, historical trends, market conditions, pricing trends we see in our direct sales activity with original equipment manufacturers and other customers, and input from sales, marketing and other key management. We believe that the analysis of these inputs enable us to make reliable estimates of future credits under the ship and debit program. This analysis requires the exercise of significant judgments. Our actual results to date have approximated our estimates. At the time the distributor ships the part from stock, the distributor debits us for the authorized pricing adjustment. This allowance is included as part of the accounts receivable allowance on the balance sheet and as a reduction of revenues in the statement of operations. If competitive pricing were to decrease sharply and unexpectedly, our estimates might be insufficient, which could significantly adversely affect our operating results.

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     Additions to the ship and debit allowance are estimates of the amount of expected future ship and debit activity related to sales during the period and reduce revenues and gross profit in the period. The following table sets forth the beginning and ending balances of, additions to, and deductions from, our allowance for ship and debit during the nine months ended December 31, 2010 (in thousands):
         
Balance at March 31, 2010
  $ 1,419  
Additions
    1,286  
Deductions
    (1,008 )
 
     
Balance at June 30, 2010
  $ 1,697  
Additions
    951  
Deductions
    (1,222 )
 
     
Balance at September 30, 2010
  $ 1,426  
Additions
    1,543  
Deductions
    (1,599 )
 
     
Balance at December 31, 2010
  $ 1,370  
 
     
     Allowance for doubtful accounts. We maintain an allowance for doubtful accounts for estimated losses from the inability of our customers to make required payments. We evaluate our allowance for doubtful accounts based on the aging of our accounts receivable, the financial condition of our customers and their payment history, our historical write-off experience and other assumptions. If we were to make different judgments of the financial condition of our customers or the financial condition of our customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required. This allowance is reported on the balance sheet as part of the accounts receivable allowance and is included on the statement of operations as part of selling, general and administrative expenses. This allowance is based on historical losses and management’s estimates of future losses.
     Inventories. Inventories are recorded at the lower of standard cost, which approximates actual cost on a first-in-first-out basis, or market value. Our accounting for inventory costing is based on the applicable expenditure incurred, directly or indirectly, in bringing the inventory to its existing condition. Such expenditures include acquisition costs, production costs and other costs incurred to bring the inventory to its use. As it is impractical to track inventory from the time of purchase to the time of sale for the purpose of specifically identifying inventory cost, our inventory is, therefore, valued based on a standard cost, given that the materials purchased are identical and interchangeable at various steps in the production process. We review our standard costs on an as-needed basis but in any event at least once a year, and update them as appropriate to approximate actual costs. The authoritative guidance provided by FASB requires certain abnormal expenditures to be recognized as expenses in the current period instead of capitalized in inventory. It also requires that the amount of fixed production overhead allocated to inventory be based on the normal capacity of the production facilities.
     We typically plan our production and inventory levels based on internal forecasts of customer demand, which are highly unpredictable and can fluctuate substantially. The value of our inventories is dependent on our estimate of future demand as it relates to historical sales. If our projected demand is overestimated, we may be required to reduce the valuation of our inventories below cost. We regularly review inventory quantities on hand and record an estimated provision for excess inventory based primarily on our historical sales and expectations for future use. We also recognize a reserve based on known technological obsolescence, when appropriate. However, for new products, we do not consider whether there is excess inventory until we develop sufficient sales history or experience a significant change in expected product demand, based on backlog. Actual demand and market conditions may be different from those projected by our management. This could have a material effect on our operating results and financial position. If we were to make different judgments or utilize different estimates, the amount and timing of our write-down of inventories could be materially different. For example, during fiscal 2009, we examined our inventory and as a consequence of the dramatic retrenchment in some of our markets, certain of our inventory that normally would not be considered excess was considered as such. Therefore, we booked additional charges of about $14.9 million to recognize this exposure.
     Excess inventory frequently remains saleable. When excess inventory is sold, it yields a gross profit margin of up to 100%. Sales of excess inventory have the effect of increasing the gross profit margin beyond that which would otherwise occur, because of previous write-downs. Once we have written down inventory below cost, we do not subsequently write it up when it is subsequently sold or scrapped. We do not physically segregate excess inventory nor do we assign unique tracking numbers to it in our accounting systems. Consequently, we cannot isolate the sales prices of excess inventory from the sales prices of non-excess inventory. Therefore, we are unable to report the amount of gross profit resulting from the sale of excess inventory or quantify the favorable impact of such gross profit on our gross profit margin.

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     The following table provides information on our excess and obsolete inventory reserve charged against inventory at cost (in thousands):
         
Balance at March 31, 2010
  $ 35,574  
Utilization or sale
    (3,561 )
Additional accrual
    1,553  
Foreign currency translation adjustments
    (913 )
 
     
Balance at June 30, 2010
  $ 32,653  
Utilization or sale
    (3,015 )
Scrap
    (1,027 )
Additional accrual
    2,024  
Foreign currency translation adjustments
    1,051  
 
     
Balance at September 30, 2010
  $ 31,686  
Utilization or sale
    (2,022 )
Scrap
    (387 )
Additional accrual
    1,009  
Foreign currency translation adjustments
    (257 )
 
     
Balance at December 31, 2010
  $ 30,029  
 
     
     The practical efficiencies of wafer fabrication require the manufacture of semiconductor wafers in minimum lot sizes. Often, when manufactured, we do not know whether or when all the semiconductors resulting from a lot of wafers will sell. With more than 10,000 different part numbers for semiconductors, excess inventory resulting from the manufacture of some of those semiconductors will be continual and ordinary. Because the cost of storage is minimal when compared to potential value and because our products do not quickly become obsolete, we expect to hold excess inventory for potential future sale for years. Consequently, we have no set time line for the sale or scrapping of excess inventory.
     In addition, our inventory is also being written down to the lower of cost or market or net realizable value. We review our inventory listing on a quarterly basis for an indication of losses being sustained for costs that exceed selling prices less direct costs to sell. When it is evident that our selling price is lower than current cost, inventory is marked down accordingly. At December 31, 2010, our lower of cost or market reserve was $557,000.
     Furthermore, we perform an annual inventory count and periodic cycle counts for specific parts that have a high turnover. We also periodically identify any inventory that is no longer usable and write it off.
     Income tax. As part of the process of preparing our consolidated financial statements, we are required to estimate our income taxes in each of the jurisdictions in which we operate. This process involves estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included within our unaudited condensed consolidated balance sheets. We then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not likely, we establish a valuation allowance. A valuation allowance reduces our deferred tax assets to the amount that is more likely than not to be realized. In determining the amount of the valuation allowance, we consider estimated future taxable income as well as feasible tax planning strategies in each taxing jurisdiction in which we operate. If we determine that it is more likely than not that we will not realize all or a portion of our remaining deferred tax assets, then we will increase our valuation allowance with a charge to income tax expense. Conversely, if we determine that it is likely that we will ultimately be able to utilize all or a portion of the deferred tax assets for which a valuation allowance has been provided, then the related portion of the valuation allowance will reduce goodwill, intangible assets or income tax expense. Significant management judgment is required in determining our provision for income taxes and potential tax exposures, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. In the event that actual results differ from these estimates or we adjust these estimates in future periods, we may need to establish a valuation allowance, which could materially impact our financial position and results of operations. Our ability to utilize our deferred tax assets and the need for a related valuation allowance are monitored on an ongoing basis.
     Furthermore, computation of our tax liabilities involves examining uncertainties in the application of complex tax regulations. We recognize liabilities for uncertain tax positions based on the two-step process as prescribed by the authoritative guidance provided by FASB. The first step is to evaluate the tax position for recognition by determining if there is sufficient available evidence to indicate if it is more likely than not that the position will be sustained on audit, including resolution of any related appeals or litigation processes. The second step requires us to measure and determine the approximate amount of the tax benefit at the largest amount that is more

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than 50% likely of being realized upon ultimate settlement with the tax authorities. It is inherently difficult and requires significant judgment to estimate such amounts, as this requires us to determine the probability of various possible outcomes. We reexamine these uncertain tax positions on a quarterly basis. This reassessment is based on various factors during the period including, but not limited to, changes in worldwide tax laws and treaties, tax rates, changes in facts or circumstances, effectively settled issues under audit and any new audit activity. A change in recognition or measurement would result in the recognition of a tax benefit or an additional charge to the tax provision in the period.
Recent Accounting Pronouncements
     For a description of recent accounting pronouncements, including the expected dates of adoption and estimated effects, if any, on our consolidated condensed financial statements, see Note 2, “Recent Accounting Pronouncements” in the Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q.
Results of Operations — Three and Nine Months Ended December 31, 2010 and 2009
     The following table sets forth selected consolidated statements of operations data for the fiscal periods indicated and the percentage change in such data from period to period. These historical operating results may not be indicative of the results for any future period.
                                                 
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     %change     2009     2010     %change     2009  
 
    (000)             (000)     (000)             (000)
Net revenues
  $ 91,727       43.3 %   $ 64,032     $ 266,512       59.9 %   $ 166,663  
Cost of goods sold
    62,647       29.6 %     48,321       176,131       37.6 %     128,000  
 
                                       
Gross profit
  $ 29,080       85.1 %   $ 15,711     $ 90,381       133.8 %   $ 38,663  
 
                                       
 
                                               
Operating expenses:
                                               
Research, development and engineering
  $ 6,684       29.9 %   $ 5,144     $ 20,293       42.9 %   $ 14,202  
Selling, general and administrative
    10,595       27.4 %     8,315       31,471       27.5 %     24,678  
Amortization of acquisition- related intangible assets
    1,630       224.7 %     502       5,476       984.4 %     505  
Restructuring charges
    515       1509.4 %     32       566       -45.7 %     1,042  
 
                                       
Total operating expenses
  $ 19,424       38.8 %   $ 13,993     $ 57,806       43.0 %   $ 40,427  
 
                                       

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     The following table sets forth selected statements of operations data as a percentage of net revenues for the fiscal periods indicated. These historical operating results may not be indicative of the results for any future period.
                                 
    % of Net Revenues     % of Net Revenues  
    Three Months Ended     Nine Months Ended  
    December 31,     December 31,  
    2010     2009     2010     2009  
Net revenues
    100.0 %     100.0 %     100.0 %     100.0 %
Cost of goods sold
    68.3 %     75.5 %     66.1 %     76.8 %
 
                       
Gross profit
    31.7 %     24.5 %     33.9 %     23.2 %
 
                       
 
                               
Operating expenses:
                               
Research, development and engineering
    7.3 %     8.0 %     7.6 %     8.5 %
Selling, general and administrative
    11.6 %     13.0 %     11.8 %     14.8 %
Amortization of acquisition- related intangible assets
    1.8 %     0.8 %     2.1 %     0.3 %
Restructuring charges
    0.6 %     0.0 %     0.2 %     0.6 %
 
                       
Total operating expenses
    21.3 %     21.8 %     21.7 %     24.2 %
 
                       
Operating income (loss)
    10.4 %     2.7 %     12.2 %     -1.0 %
Other income (expense), net
    0.3 %     0.6 %     0.2 %     -1.6 %
 
                       
Income (loss) before income tax
    10.7 %     3.3 %     12.4 %     -2.6 %
Provision for income tax
    -2.9 %     -2.7 %     -4.6 %     -0.2 %
 
                       
Net income (loss)
    7.8 %     0.6 %     7.8 %     -2.8 %
 
                       
Net Revenues.
     The following tables set forth the revenues for each of our product groups for the fiscal periods indicated:
Revenues (1)
                                                 
    Three Months Ended December 31,     Nine Months Ended December 31,  
    2010     % change     2009     2010     % change     2009  
 
    (000)             (000)     (000)             (000)
Power semiconductors
  $ 63,563       45.6 %   $ 43,662     $ 182,074       48.1 %   $ 122,950  
Integrated circuits
    20,267       32.4 %     15,306       64,742       115.5 %     30,047  
Systems and RF power semiconductors
    7,897       55.9 %     5,064       19,696       44.1 %     13,666  
 
                                       
Total
  $ 91,727       43.3 %   $ 64,032     $ 266,512       59.9 %   $ 166,663  
 
                                       
 
(1)   Revenues by product group include royalties.
     The following tables set forth the average selling prices, or ASPs, and units for the fiscal periods indicated:
Average Selling Prices
                                                 
    Three Months Ended December 31,     Nine Months Ended December 31,  
    2010     % change     2009     2010     % change     2009  
Power semiconductors
  $ 1.83       -23.1 %   $ 2.38     $ 1.85       -22.6 %   $ 2.39  
Integrated circuits
  $ 0.92       33.3 %   $ 0.69     $ 0.89       25.4 %   $ 0.71  
Systems and RF power semiconductors
  $ 30.61       30.0 %   $ 23.55     $ 27.24       26.0 %   $ 21.62  

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Units
                                                 
    Three Months Ended December 31,     Nine Months Ended December 31,  
    2010     % change     2009     2010     % change     2009  
    (000)           (000)     (000)           (000)  
Power semiconductors
    34,679       89.1 %     18,338       98,661       92.0 %   $ 51,374  
Integrated circuits
    21,003       -5.9 %     22,317       69,693       65.2 %     42,177  
Systems and RF power semiconductors
    258       20.0 %     215       723       14.4 %     632  
 
                                       
Total
    55,940       36.9 %     40,870       169,077       79.5 %     94,183  
 
                                       
     The 43.3% increase in net revenues in the three months ended December 31, 2010 as compared to the three months ended December 31, 2009 reflected an increase of $19.9 million, or 45.6%, in the sale of power semiconductors, an increase of $5.0 million, or 32.4%, in the sale of ICs and an increase of $2.8 million, or 55.9%, in the sale of systems and RF power semiconductors. The increase in power semiconductors included a $12.1 million increase in the sale of bipolar products, primarily to the industrial and commercial market, and a $7.6 million increase in the sale of MOS products, principally to the consumer products market and the industrial and commercial market. The increase in revenues from the sale of ICs was primarily driven by the acquisition of Zilog, offset by reduced sales of display driver ICs. The revenues from the sale of systems and RF power semiconductors increased primarily due to a $2.3 million increase in the sale of subassemblies to the industrial and commercial market.
     For the three months ended December 31, 2010 as compared to the three months ended December 31, 2009, the unit growth in power semiconductors was broad-based. The unit decline in ICs was principally caused by reduced shipments of display driver ICs to the consumer products market and by reduced shipments of solid state relays, or SSRs, to the telecom market, offset by shipments of microcontroller products. The increase in unit shipments in systems and RF power semiconductors was largely the result of increased shipments of subassemblies.
     The 59.9% increase in net revenues in the nine months ended December 31, 2010 as compared to the nine months ended December 31, 2009 reflected an increase of $59.1 million, or 48.1%, in the sale of power semiconductors, an increase of $34.7 million, or 115.5%, in the sale of ICs and an increase of $6.0 million, or 44.1%, in the sale of systems and RF power semiconductors. The increase in power semiconductors included a $36.0 million increase in the sale of bipolar products, primarily to the industrial and commercial market, and a $21.4 million increase in the sale of MOS products, principally to the consumer products market and the industrial and commercial market. The increase in revenues from the sale of ICs was primarily driven by the acquisition of Zilog and a $4.7 million increase in the sale of SSRs to the telecom market. The revenues from the sale of systems and RF power semiconductors increased primarily due to a $5.1 million increase in the sale of subassemblies to the industrial and commercial market.
     For the nine months ended December 31, 2010 as compared to the nine months ended December 31, 2009, IC unit growth was principally due to shipments of Zilog microcontrollers and shipments of SSRs, whereas in power semiconductors the unit growth was broad-based. The unit increase in systems and RF power semiconductors was principally due to increased shipments of subassemblies.
     For the three and nine months ended December 31, 2010 as compared to the comparable periods of the previous fiscal year, the changes in the ASPs of power semiconductor and the systems and RF power semiconductors were due to changes in the mix of products sold. The ASP of power semiconductors declined with markedly increased sales to all of our major market segments, except for the higher priced medical market. The ASP of systems and RF power semiconductors increased with the increased sales of subassemblies. The ASP of ICs increased as a result of the addition of microcontroller product sales from the recently acquired Zilog division.
     For the quarter ended December 31, 2010, sales to customers in the United States represented approximately 25.6% of our net revenues and sales to international customers represented approximately 74.4% of our net revenues. Of our international sales, approximately 47.5% were derived from sales in Europe and the Middle East, approximately 47.1% were derived from sales in the Asia Pacific region and approximately 5.4% were derived from sales in the rest of the world. By comparison, for the quarter ended December 31, 2009, sales to customers in the United States represented approximately 27.0% of our net revenues and sales to international customers represented approximately 73.0% of our net revenues. Of our international sales, approximately 45.3% were derived from sales in Europe and the Middle East, approximately 48.9% were derived from sales in the Asia Pacific region and approximately 5.8% were derived from sales in the rest of the world.
     For the nine months ended December 31, 2010, sales to customers in the United States represented approximately 28.1% of our net revenues and sales to international customers represented approximately 71.9% of our net revenues. Of our international sales, approximately 47.2% were derived from sales in Europe and the Middle East, approximately 47.7% were derived from sales in the Asia Pacific region and approximately 5.1% were derived from sales in the rest of the world. By comparison, for the nine months ended December 31, 2009, sales to customers in the United States represented approximately 29.8% of our net revenues and sales to international customers represented approximately 70.2% of our net revenues. Of our international sales, approximately 47.3% were

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derived from sales in Europe and the Middle East, approximately 46.0% were derived from sales in the Asia Pacific region and approximately 6.7% were derived from sales in the rest of the world.
     For the three and nine months ended December 31, 2010 as compared to the three and nine months ended December 31, 2009, we experienced sales growth in all major geographic areas including the U.S., Europe and the Middle East, and the Asia Pacific area. For the three months ended December 31, 2010 as compared to the three months ended December 31, 2009, our sales to the telecom market and the industrial and commercial market increased significantly, while our sales to the medical market and to the consumer products market declined. For the nine months ended December 31, 2010 as compared to the same period in prior year, our sales to the telecom market, the consumer products market and the industrial and commercial market increased significantly, whereas our sales to the medical market were largely unchanged.
     For the three and nine months ended December 31, 2010, one distributor accounted for 12.7% and 12.3% of our net revenues, respectively, and another distributor accounted for 10.9% and 11.7% of our net revenues, respectively. For the three and nine months ended December 31, 2009, one distributor accounted for 10.4% and 11.3%, respectively, of our net revenues.
     Our net revenues were reduced by allowances for sales returns, stock rotations and ship and debit. See “Critical Accounting Policies and Significant Management Estimates” elsewhere in this Management’s Discussion and Analysis of Financial Condition and Results of Operations.
Gross Profit.
     Gross profit margin increased to 31.7% in the three months ended December 31, 2010 from 24.5% in the three months ended December 31, 2009. Gross profit margin increased to 33.9% in the nine months ended December 31, 2010 from 23.2% in the nine months ended December 31, 2009. The gross profit margin improved due to changes in product mix, better utilization of facilities caused by increased production to support the growth in revenues and increased utilization or sale of previously written down inventory. During the current fiscal year, our net revenues included higher margin microcontroller products sold by the Zilog division acquired in February 2010, resulting in higher gross profit margins. The increased utilization and sale of previously written down inventory resulted in increased gross profit for the three and nine months ended December 31, 2010, respectively. See “Critical Accounting Policies and Significant Management Estimates — Inventories” elsewhere in this Management’s Discussion and Analysis of Financial Condition and Results of Operations.
Research, Development and Engineering.
     R&D expenses typically consist of internal engineering efforts for product design and development. As a percentage of net revenues, our R&D expenses for the three and nine months ended December 31, 2010 were 7.3% and 7.6%, respectively, as compared to 8.0% and 8.5% for the three and nine months ended December 31, 2009. The reduction in the percentages resulted from increased net revenues. Expressed in dollars, for the three and nine months ended December 31, 2010 as compared to the same periods of the prior year, our R&D expenses increased by approximately $1.5 million and $6.1 million, or 29.9% and 42.9%, respectively. The increase in R&D spending was primarily caused by the acquisitions of Zilog and our display and LED driver businesses in fiscal year 2010, which resulted in increases in R&D headcount and expenses in the three and nine months ended December 31, 2010 as compared to the same periods in the prior fiscal year.
Selling, General and Administrative.
     As a percentage of net revenues, our SG&A expenses for the three and nine months ended December 31, 2010 were 11.6% and 11.8% as compared to 13.0% and 14.8% for the three and nine months ended December 31, 2009. The reduction in the percentages resulted from increased net revenues. Expressed in dollars, SG&A expenses increased by $2.3 million and $6.8 million, or 27.4% and 27.5%, respectively, for the three and nine months ended December 31, 2010 as compared to the same periods in the prior fiscal year, primarily due to the acquisition of Zilog, as well as higher commission and freight expenses incurred because of increased revenues.
Amortization of Acquisition-Related Intangible Assets.
     We recorded certain intangible assets during fiscal 2010 in connection with the acquisitions of Zilog and the display and LED driver businesses from Leadis. These assets are amortized based upon their estimated useful lives that range from 12 months to 72 months. For the three and nine months ended December 31, 2010, we recorded amortization expenses on acquisition-related intangible assets of $1.6 million and $5.5 million, respectively. For the three and nine months ended December 31, 2009, we recorded amortization expenses on acquisition-related intangible assets of $502,000 and $505,000, respectively.
Restructuring Charges.
     In the quarter ended September 30, 2009, we initiated plans to restructure our European manufacturing and assembly operations to align them to current market conditions. The plans primarily involved the termination of employees and centralization of certain

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positions. Costs related to termination of employees represented severance payments and benefits. The restructuring charges recorded in conjunction with the plan represented severance costs and have been included under “Restructuring charges” in our unaudited condensed consolidated statements of operations.
     During the quarter ended December 31, 2010, we relocated the Zilog employees to our headquarters in Milpitas and vacated the facility in San Jose, California, as a part of our integration plan to reduce costs. As a result, we took a charge of $442,000 for future costs that will continue to be incurred during the remaining term of the San Jose lease.
     As a consequence of these restructuring actions, we incurred restructuring charges of $515,000 and $566,000 during the three and nine months ended December 31, 2010. During the three and nine months ended December 31, 2009, we incurred restructuring charges of $32,000 and $1.0 million, respectively. The restructuring accrual as of December 31, 2010 was included under “Accrued expenses and other current liabilities” on our unaudited condensed consolidated balance sheets. See Note 10, “Restructuring Charges” in the Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q.
Other Income (Expense), net.
     In the quarter ended December 31, 2010, other income, net was $625,000 as compared to other income, net of $691,000 in the quarter ended December 31, 2009. The other income, net in the three months ended December 31, 2010 principally consisted of $572,000 in gains associated with changes in exchange rates for foreign currency transactions. The other income, net in the three months ended December 31, 2009 consisted principally of $682,000 in gains associated with changes in exchange rates for foreign currency transactions.
     For the nine months ended December 31, 2010, other income, net was $1.4 million, as compared to other expense, net of $1.7 million in the nine months ended December 31, 2009. For the nine months ended December 31, 2010, other income, net consisted principally of $1.3 million in gains associated with changes in exchange rates for foreign currency transactions. For the nine months ended December 31, 2009, other expense, net consisted principally of losses associated with changes in exchange rates for foreign currency transactions of $1.6 million.
Provision for Income Tax.
     For the three and nine months ended December 31, 2010, we recorded income tax provisions of $2.7 million and $12.3 million, reflecting effective tax rates of 26.6% and 37.3%, respectively. For the three and nine months ended December 31, 2009, we recorded income tax provisions of $1.7 million and $347,000, reflecting effective tax rates of 80.9% and 8.0%, respectively. For the three months ended December 31, 2010, the effective tax rate was affected by certain discrete items offset by changes in the estimates of annual income in foreign jurisdictions based on nine months of experience. For the nine months ended December 31, 2010, the effective tax rate was affected by certain discrete items. For the three months ended December 31, 2009, the provision for income tax represented the adjustment of the income tax account to reflect a change in our estimated income taxes for the year based on nine months of experience, offset by a favorable impact on the reversal of accrued income tax expenses following conclusion of an audit in a foreign tax jurisdiction. The provision for income tax for the nine months ended December 31, 2009 was incurred because we had losses in certain jurisdictions with comparatively lower tax rates, partially offset by the release of valuation allowance.
Liquidity and Capital Resources
     At December 31, 2010, cash and cash equivalents were $69.0 million as compared to $60.5 million at March 31, 2010.
     Our cash provided by operating activities for the nine months ended December 31, 2010 was $20.3 million, a decrease of $2.9 million as compared to the $23.2 million in the comparable period of the prior year. The change in our operating cash flow was primarily due to a decrease of $26.5 million in net changes in operating assets and liabilities, offset by an increase of $23.6 million in net income and total adjustments to reconcile net income.
     The increase in net income and total adjustments to reconcile net income was driven by the increase in net revenues. The changes in operating assets and liabilities for the nine months ended December 31, 2010 compared to the nine months ended December 31, 2009 were primarily caused by the following: Accounts receivables increased due to higher revenues and inventory purchases increased to meet our production plans.
     Our net cash used in investing activities for the nine months ended December 31, 2010 was $6.7 million, as compared to net cash used in investing activities of $5.4 million during the nine months ended December 31, 2009. During the nine months ended December 31, 2010, our uses of cash for investing activities principally reflected $6.8 million in purchases of property and equipment. During the nine months ended December 31, 2009, our uses of cash for investing activities principally reflected $2.6 million for a business combination and $2.6 million in purchases of property and equipment.

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     For the nine months ended December 31, 2010, net cash used in financing activities was $5.3 million, as compared to net cash provided by financing activities of $11.5 million in the nine months ended December 31, 2009. During the nine months ended December 31, 2010, we used $4.0 million for the purchase of treasury stock and $3.4 million for principal repayment on capital lease and loan obligations, offset by proceeds from employee equity plans of $2.1 million. During the nine months ended December 31, 2009, net cash provided by financing activities primarily reflected $15.0 million in proceeds borrowed under the line of credit, offset by $4.2 million in principal payments on capital lease and loan obligations.
     At December 31, 2010, capital lease obligations and loans payable totaled $39.1 million. This represented 56.7% of our cash and cash equivalents and 19.2% of our stockholders’ equity.
     We are obligated on a €6.3 million, or $8.4 million, loan. The loan has a remaining term of about 10 years, ending in June 2020, and bears a variable interest rate, dependent upon the current Euribor rate and the ratio of indebtedness to cash flow for the German subsidiary. Each fiscal quarter a principal payment of €167,000, or about $221,000, and a payment of accrued interest are required. Financial covenants for a ratio of indebtedness to cash flow, a ratio of equity to total assets and a minimum stockholders’ equity for the German subsidiary must be satisfied for the loan to remain in good standing. At December 31, 2010, we complied with all of these financial covenants. The loan may be prepaid in whole or in part at the end of a fiscal quarter without penalty. The loan is collateralized by a security interest in the facility in Lampertheim, Germany, which is owned by our U.S. parent.
     On August 2, 2007, we completed the purchase of a building in Milpitas, California. We moved our corporate office and a facility for operations to this location in January 2008. In connection with the purchase, we assumed a loan, secured by the building, of $7.5 million. The loan bore interest at the rate of 7.455% per annum. Monthly payments of principal and interest of $56,000 were due under the loan. In addition, monthly impound payments aggregating $14,000 were made for items such as real property taxes, insurance and capital expenditures. The loan was repaid in full on February 1, 2011.
     On November 13, 2009, we entered into a credit agreement for a revolving line of credit with BOW, under which we could borrow up to $15.0 million and all amounts owed under the credit agreement were due and payable on October 31, 2011. On December 29, 2010, we entered into an amendment with BOW to increase the line of credit to $20.0 million and to extend the expiration date to October 31, 2013. Borrowings may be repaid and re-borrowed during the term of the credit agreement. The obligations are guaranteed by two of our subsidiaries. At December 31, 2010, the outstanding principal balance under the credit agreement was $15.0 million. See Note 9, “Borrowing Arrangements” in the Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q for further information regarding the credit agreement. The credit agreement also includes a $3.0 million letter of credit subfacility. See Note 17, “Commitments and Contingencies” in the Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q for further information regarding the terms of the subfacility.
     Additionally, we maintain three defined benefit pension plans: one for the United Kingdom employees, one for German employees and one for Philippine employees. These plans cover most of the employees in the United Kingdom, Germany and the Philippines. Benefits are based on years of service and the employees’ compensation. We deposit funds for these plans, consistent with the requirements of local law, with investment management companies, insurance companies, banks, trustees or accrue for the unfunded portion of the obligations. The United Kingdom and German plans have been curtailed. As such, the plans are closed to new entrants and no credit is provided for additional periods of service. The total pension liability accrued for the United Kingdom and German plans at December 31, 2010 was $15.7 million. The Philippines plan is overfunded and the overfunding of $257,000 is included under “Other assets” on our unaudited condensed consolidated balance sheet.
     We believe that our cash and cash equivalents, together with cash generated from operations, will be sufficient to meet our anticipated cash requirements for the next 12 months. Our liquidity could be negatively affected by a decline in demand for our products, increases in the cost of materials or labor, investments in new product development or one or more acquisitions. From time to time, we use derivative contracts in the normal course of business to manage our foreign currency exchange and interest rate risks. We did not have any significant open derivative contracts at December 31, 2010. There can be no assurance that additional debt or equity financing will be available when required or, if available, can be secured on terms satisfactory to us.

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ITEM 3.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
     Our market risk has not changed materially from the market risk disclosed in Item 7A, “Quantitative and Qualitative Disclosures About Market Risk,” of our Annual Report on Form 10-K for the fiscal year ended March 31, 2010.
ITEM 4.   CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
     Based on their evaluation as of December 31, 2010, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) were effective to ensure that the information required to be disclosed by us in this Quarterly Report on Form 10-Q was recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and regulations. Furthermore, these controls and procedures were also effective to ensure that information required to be disclosed by us in this Quarterly Report on Form 10-Q was accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.
Inherent Limitations on Effectiveness of Controls
     Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our procedures or our internal controls will prevent or detect all errors and all fraud. An internal control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of our controls can provide absolute assurance that all control issues, errors and instances of fraud, if any, have been detected.

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PART II — OTHER INFORMATION
ITEM 1.  LEGAL PROCEEDINGS
     We currently are involved in a variety of legal matters that arise in the normal course of business. Based on information currently available, management does not believe that the ultimate resolution of these matters will have a material adverse effect on our financial condition, results of operations and cash flows. Were an unfavorable ruling to occur, there exists the possibility of a material adverse impact on the results of operations of the period in which the ruling occurs.
ITEM 1A.  RISK FACTORS
     In addition to the other information in this Quarterly Report on Form 10-Q, the following risk factors should be considered carefully in evaluating our business and us. Additional risks not presently known to us or that we currently believe are not serious may also impair our business and its financial condition.
     Our operating results fluctuate significantly because of a number of factors, many of which are beyond our control.
     Given the nature of the markets in which we participate, we cannot reliably predict future revenues and profitability and unexpected changes may cause us to adjust our operations. Large portions of our costs are fixed, due in part to our significant sales, research and development and manufacturing costs. Thus, small declines in revenues could seriously negatively affect our operating results in any given quarter. Our operating results may fluctuate significantly from quarter to quarter and year to year. For example, from fiscal 2005 to fiscal 2006 and from fiscal 2008 to fiscal 2009, net income in one year shifted to net loss in the next year. Some of the factors that may affect our quarterly and annual results are:
    changes in business and economic conditions, including a downturn in demand or decrease in the rate of growth in demand, whether in the global economy, a regional economy or in the semiconductor industry;
 
    changes in consumer and business confidence caused by changes in market conditions, including changes in the credit market, change in currency exchange rates, expectations for inflation and energy prices;
 
    the reduction, rescheduling or cancellation of orders by customers;
 
    fluctuations in timing and amount of customer requests for product shipments;
 
    changes in the mix of products that our customers purchase;
 
    changes in the level of customers’ component inventory;
 
    loss of key customers;
 
    the cyclical nature of the semiconductor industry;
 
    competitive pressures on selling prices;
 
    strategic actions taken by our competitors;
 
    market acceptance of our products and the products of our customers;
 
    fluctuations in our manufacturing yields and significant yield losses;
 
    difficulties in forecasting demand for our products and the planning and managing of inventory levels;
 
    the availability of production capacity, whether internally or from external suppliers;
 
    the availability of raw materials, supplies and manufacturing services from third parties;
 
    the amount and timing of investments in research and development;
 
    damage awards or injunctions as the result of litigation;
 
    changes in our product distribution channels and the timeliness of receipt of distributor resale information;

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    the impact of vacation schedules and holidays, largely during the second and third fiscal quarters of our fiscal year; and
 
    the amount and timing of costs associated with product returns.
     As a result of these factors, many of which are difficult to control or predict, as well as the other risk factors discussed in this Quarterly Report on Form 10-Q, we may experience materially adverse fluctuations in our future operating results on a quarterly or annual basis. If product demand decreases, our manufacturing or assembly and test capacity could be underutilized, and we may be required to record an impairment on our long-lived assets including facilities and equipment, as well as intangible assets, which would increase our expenses. In addition, factory planning decisions may shorten the useful lives of long-lived assets, including facilities and equipment, and cause us to accelerate depreciation. These changes in demand for our products and in our customers’ product needs could have a variety of negative effects on our competitive position and our financial results, and, in certain cases, may reduce our revenue, increase our costs, lower our gross margin percentage or require us to recognize impairments of our assets. In addition, if product demand decreases or we fail to forecast demand accurately, we could be required to write off inventory or record underutilization charges, which would have a negative impact on our gross margin.
     We may not be able to increase production capacity to meet the present and future demand for our products.
     The semiconductor industry has been characterized by periodic limitations on production capacity. Currently, we are experiencing constraints on our ability to manufacture power semiconductors that result in longer lead times for product delivery than desired by many of our customers. If we are unable to increase our production capacity to meet current or possible future demand, some of our customers may seek other sources of supply or our future growth may be limited.
     Our backlog may not result in future revenues.
     Customer orders typically can be cancelled or rescheduled without penalty to the customer. Further, in periods of increasing demand, particularly when production is allocated or delivery delayed, customers of semiconductor companies have on occasion placed orders without expectation of accepting delivery to increase their share of allocated product or in an effort to improve the timeliness of delivery. While we are attuned to the potential for such behavior and attempt to identify such orders, we could accept orders of this nature and subsequently experience order cancellation unexpectedly. As a result, our backlog at any particular date is not necessarily indicative of actual revenues for any succeeding period. A reduction of backlog during any particular period, or the failure of our backlog to result in future revenues, could harm our results of operations.
     Fluctuations in the mix of products sold may adversely affect our financial results.
     Changes in the mix and types of products sold may have a substantial impact on our revenues and gross profit margins. In addition, more recently introduced products tend to have higher associated costs because of initial overall development costs and higher start-up costs. Fluctuations in the mix and types of our products may also affect the extent to which we are able to recover our fixed costs and investments that are associated with a particular product, and, as a result, can negatively impact our financial results.
     Our international operations expose us to material risks.
     For the nine months ended December 31, 2010, our net revenues by region were approximately 28.1% in the United States, approximately 33.9% in Europe and the Middle East, approximately 34.3% in Asia Pacific and approximately 3.7% in Canada and the rest of the world. We expect revenues from foreign markets to continue to represent a significant portion of total net revenues. We maintain significant operations in Germany, the United Kingdom and the Philippines and work with subcontractors, suppliers and manufacturers in South Korea, Japan, the Philippines and elsewhere in Europe and Asia Pacific. Some of the risks inherent in doing business internationally are:
    foreign currency fluctuations, particularly in the Euro and the British pound;
 
    longer payment cycles;
 
    challenges in collecting accounts receivable;
 
    changes in the laws, regulations or policies of the countries in which we manufacture or sell our products;
 
    trade restrictions;
 
    cultural and language differences;
 
    employment regulations;

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    limited infrastructure in emerging markets;
 
    transportation delays;
 
    seasonal reduction in business activities;
 
    work stoppages;
 
    labor and union disputes;
 
    electrical outages;
 
    terrorist attack or war; and
 
    economic or political instability.
     Our sales of products manufactured in our Lampertheim, Germany facility and our costs at that facility are primarily denominated in Euros, and sales of products manufactured in our Chippenham, U.K. facility and our costs at that facility are primarily denominated in British pounds. Fluctuations in the value of the Euro and the British pound against the U.S. dollar could have a significant adverse impact on our balance sheet and results of operations. We generally do not enter into foreign currency hedging transactions to control or minimize these risks. Reductions in the value of the Euro or British pound would reduce our revenues recognized in U.S. dollars, all other things being equal. Increases in the value of the Euro or the British pound could cause losses associated with changes in exchange rates for foreign currency transactions. Fluctuations in currency exchange rates could cause our products to become more expensive to customers in a particular country, leading to a reduction in sales or profitability in that country. If we expand our international operations or change our pricing practices to denominate prices in other foreign currencies, we could be exposed to even greater risks of currency fluctuations.
     Our financial performance is dependent on economic stability and credit availability in international markets. Actions by governments to address deficits or sovereign debt issues could adversely affect gross domestic product or currency exchange rates in countries where we operate, which in turn could adversely affect our financial results. If our customers or suppliers are unable to obtain the credit necessary to fund their operations, we could experience increased bad debts, reduced product orders and interruptions in supplier deliveries leading to delays or stoppages in our production.
     In addition, the laws of certain foreign countries may not protect our products or intellectual property rights to the same extent as do U.S. laws regarding the manufacture and sale of our products in the U.S. Therefore, the risk of piracy of our technology and products may be greater when we manufacture or sell our products in these foreign countries.
     The semiconductor industry is cyclical, and an industry downturn could adversely affect our operating results.
     Business conditions in the semiconductor industry may rapidly change from periods of strong demand and insufficient production to periods of weakened demand and overcapacity. The industry in general is characterized by:
    changes in product mix in response to changes in demand;
 
    alternating periods of overcapacity and production shortages, including shortages of raw materials supplies and manufacturing services;
 
    cyclical demand for semiconductors;
 
    significant price erosion;
 
    variations in manufacturing costs and yields;
 
    rapid technological change and the introduction of new products; and
 
    significant expenditures for capital equipment and product development.
     These factors could harm our business and cause our operating results to suffer.

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     Our dependence on subcontractors to assemble and test our products subjects us to a number of risks, including an inadequate supply of products and higher materials costs.
     We depend on subcontractors for the assembly and testing of our products. The substantial majority of our products are assembled by subcontractors located outside of the United States. Assembly subcontractors generally work on narrow margins and have limited capital. We have experienced assembly subcontractors who have ceased or reduced production because of financial problems. We engage assembly subcontractors who operate while in insolvency proceedings or whose financial stability is uncertain. The unexpected cessation of production or reduction in production by one or more of our assembly subcontractors could adversely affect our production, our customer relations, our revenues and our financial condition. Our reliance on these subcontractors also involves the following significant risks:
    reduced control over delivery schedules and quality;
 
    the potential lack of adequate capacity during periods of excess demand;
 
    difficulties selecting and integrating new subcontractors;
 
    limited or no warranties by subcontractors or other vendors on products supplied to us;
 
    potential increases in prices due to capacity shortages and other factors;
 
    potential misappropriation of our intellectual property; and
 
    economic or political instability in foreign countries.
     These risks may lead to delayed product delivery or increased costs, which would harm our profitability and customer relationships.
     In addition, we use a limited number of subcontractors to assemble a significant portion of our products. If one or more of these subcontractors experience financial, operational, production or quality assurance difficulties, we could experience a reduction or interruption in supply. Although we believe alternative subcontractors are available, our operating results could temporarily suffer until we engage one or more of those alternative subcontractors. Moreover, in engaging alternative subcontractors in exigent circumstances, our production costs could increase markedly.
     Semiconductors for inclusion in consumer products have short product life cycles.
     We believe that consumer products are subject to shorter product life cycles, because of technological change, consumer preferences, trendiness and other factors, than other types of products sold by our customers. Shorter product life cycles result in more frequent design competitions for the inclusion of semiconductors in next generation consumer products, which may not result in design wins for us.
     We may not be successful in our acquisitions.
     We have in the past made, and may in the future make, acquisitions of other companies and technologies. These acquisitions involve numerous risks, including:
    failure to retain key personnel of the acquired business;
 
    diversion of management’s attention during the acquisition process;
 
    disruption of our ongoing business;
 
    the potential strain on our financial and managerial controls and reporting systems and procedures;
 
    unanticipated expenses and potential delays related to integration of an acquired business;
 
    the risk that we will be unable to develop or exploit acquired technologies;
 
    failure to successfully integrate the operations of an acquired company with our own;
 
    the challenges in achieving strategic objectives, cost savings and other benefits from acquisitions;
 
    the risk that our markets do not evolve as anticipated and that the technologies acquired do not prove to be those needed to be successful in those markets;

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    the risks of entering new markets in which we have limited experience;
 
    difficulties in expanding our information technology systems or integrating disparate information technology systems to accommodate the acquired businesses;
 
    the challenges inherent in managing an increased number of employees and facilities and the need to implement appropriate policies, benefits and compliance programs;
 
    customer dissatisfaction or performance problems with an acquired company’s products or personnel;
 
    adverse effects on our relationships with suppliers;
 
    the reduction in financial stability associated with the incurrence of debt or the use of a substantial portion of our available cash;
 
    the costs associated with acquisitions, including in-process R&D charges and amortization expense related to intangible assets, and the integration of acquired operations; and
 
    assumption of known or unknown liabilities or other unanticipated events or circumstances.
     We cannot assure that we will be able to successfully acquire other businesses or product lines or integrate them into our operations without substantial expense, delay in implementation or other operational or financial problems.
     As a result of an acquisition, our financial results may differ from the investment community’s expectations in a given quarter. Further, if market conditions or other factors lead us to change our strategic direction, we may not realize the expected value from such transactions. If we do not realize the expected benefits or synergies of such transactions, our consolidated financial position, results of operations, cash flows or stock price could be negatively impacted.
     We depend on external foundries to manufacture many of our products.
     Of our net revenues for the nine months ended December 31, 2010, 41.6% came from wafers manufactured for us by external foundries. Our dependence on external foundries may grow. We currently have arrangements with a number of wafer foundries, three of which produce the wafers for power semiconductors that we purchase from external foundries. Samsung Electronics’ facility in Kiheung, South Korea is our principal external foundry.
     Our relationships with our external foundries do not guarantee prices, delivery or lead times or wafer or product quantities sufficient to satisfy current or expected demand. These foundries manufacture our products on a purchase order basis. We provide these foundries with rolling forecasts of our production requirements. However, the ability of each foundry to provide wafers to us is limited by the foundry’s available capacity. At any given time, these foundries could choose to prioritize capacity for their own use or other customers or reduce or eliminate deliveries to us on short notice. If growth in demand for our products occurs, these foundries may be unable or unwilling to allocate additional capacity to our needs, thereby limiting our revenue growth. Accordingly, we cannot be certain that these foundries will allocate sufficient capacity to satisfy our requirements. In addition, we cannot be certain that we will continue to do business with these or other foundries on terms as favorable as our current terms. If we are not able to obtain foundry capacity as required, our relationships with our customers could be harmed, we could be unable to fulfill contractual requirements and our revenues could be reduced or our growth limited. Moreover, even if we are able to secure foundry capacity, we may be required, either contractually or as a practical business matter, to utilize all of that capacity or incur penalties or an adverse effect to the business relationship. The costs related to maintaining foundry capacity could be expensive and could harm our operating results. Other risks associated with our reliance on external foundries include:
    the lack of control over delivery schedules;
 
    the unavailability of, or delays in obtaining access to, key process technologies;
 
    limited control over quality assurance, manufacturing yields and production costs; and
 
    potential misappropriation of our intellectual property.
     Our requirements typically represent a small portion of the total production of the external foundries that manufacture our wafers and products. We cannot be certain these external foundries will continue to devote resources to the production of our wafers and products or continue to advance the process design technologies on which the manufacturing of our products is based. These circumstances could harm our ability to deliver our products or increase our costs.

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     Our success depends on our ability to manufacture our products efficiently.
     We manufacture our products in facilities that are owned and operated by us, as well as in external wafer foundries and subcontract assembly facilities. The fabrication of semiconductors is a highly complex and precise process, and a substantial percentage of wafers could be rejected or numerous dies on each wafer could be nonfunctional as a result of, among other factors:
    contaminants in the manufacturing environment;
 
    defects in the masks used to print circuits on a wafer;
 
    manufacturing equipment failure; or
 
    wafer breakage.
     For these and other reasons, we could experience a decrease in manufacturing yields. Additionally, if we increase our manufacturing output, the additional demands placed on existing equipment and personnel or the addition of new equipment or personnel may lead to a decrease in manufacturing yields. As a result, we may not be able to cost-effectively expand our production capacity in a timely manner.
     Our gross margin is dependent on a number of factors, including our level of capacity utilization.
     Semiconductor manufacturing requires significant capital investment, leading to high fixed costs, including depreciation expense. We are limited in our ability to reduce fixed costs quickly in response to any shortfall in revenues. If we are unable to utilize our manufacturing, assembly and testing facilities at a high level, the fixed costs associated with these facilities will not be fully absorbed, resulting in lower gross margins. Increased competition and other factors may lead to price erosion, lower revenues and lower gross margins for us in the future.
     Increasing raw material prices could impact our profitability.
     Our products use large amounts of silicon, metals and other materials. In recent periods, we have experienced price increases for many of these items. If we are unable to pass price increases for raw materials onto our customers, our gross margins and profitability could be adversely affected.
     We order materials and commence production in advance of anticipated customer demand. Therefore, revenue shortfalls may also result in inventory write-downs.
     We typically plan our production and inventory levels based on our own expectations for customer demand. Actual customer demand, however, can be highly unpredictable and can fluctuate significantly. In response to anticipated long lead times to obtain inventory and materials, we order materials and production in advance of customer demand. This advance ordering and production may result in excess inventory levels or unanticipated inventory write-downs if expected orders fail to materialize. For example, additional inventory write downs occurred in the quarter ended March 31, 2009.
     Our debt agreements contain certain restrictions that may limit our ability to operate our business.
     The agreements governing our debt contain, and any other future debt agreement we enter into may contain, restrictive covenants that limit our ability to operate our business, including, in each case subject to certain exceptions, restrictions on our ability to:
    incur additional indebtedness;
 
    grant liens;
 
    consolidate, merge or sell our assets, unless specified conditions are met;
 
    acquire other business organizations;
 
    make investments;
 
    redeem or repurchase our stock; and
 
    change the nature of our business.

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     In addition, our debt agreements contain financial covenants and additional affirmative and negative covenants. Our ability to comply with these covenants is dependent on our future performance, which will be subject to many factors, some of which are beyond our control, including prevailing economic conditions. If we are not able to comply with all of these covenants for any reason and we have debt outstanding at the time of such failure, some or all of our outstanding debt could become immediately due and payable and the incurrence of additional debt under the credit facilities provided by the debt agreements would not be allowed. If our cash is utilized to repay any outstanding debt, depending on the amount of debt outstanding, we could experience an immediate and significant reduction in working capital available to operate our business.
     As a result of these covenants, our ability to respond to changes in business and economic conditions and to obtain additional financing, if needed, may be significantly restricted, and we may be prevented from engaging in transactions that might otherwise be beneficial to us, such as strategic acquisitions or joint ventures.
     Changes in our decisions about restructuring could affect our results of operations and financial condition.
     Factors that could cause actual results to differ materially from our expectations about restructuring actions include:
    timing and execution of a plan that may be subject to local labor law requirements, including consultation with appropriate work councils;
 
    changes in assumptions related to severance costs;
 
    changes in employment levels and turnover rates; and
 
    changes in product demand and the business environment, including changes in global economic conditions.
     Our royalties are uncertain and unpredictable in amount.
     We are unable to discern a pattern in or otherwise predict the amount of any royalty payments that we may receive. Consequently, we are unable to plan on the receipt of royalties and our results of operations may be adversely affected in an unanticipated manner by a reduction in the amount of royalties received.
     Our markets are subject to technological change and our success depends on our ability to develop and introduce new products.
     The markets for our products are characterized by:
    changing technologies;
 
    changing customer needs;
 
    frequent new product introductions and enhancements;
 
    increased integration with other functions; and
 
    product obsolescence.
     To develop new products for our target markets, we must develop, gain access to and use leading technologies in a cost-effective and timely manner and continue to expand our technical and design expertise. Failure to do so could cause us to lose our competitive position and seriously impact our future revenues.
     Products or technologies developed by others may render our products or technologies obsolete or noncompetitive. A fundamental shift in technologies in our product markets would have a material adverse effect on our competitive position within the industry.
     Our revenues are dependent upon our products being designed into our customers’ products.
     Many of our products are incorporated into customers’ products or systems at the design stage. The value of any design win largely depends upon the customer’s decision to manufacture the designed product in production quantities, the commercial success of the customer’s product and the extent to which the design of the customer’s electronic system also accommodates incorporation of components manufactured by our competitors. In addition, our customers could subsequently redesign their products or systems so that they no longer require our products. The development of the next generation of products by our customers generally results in new design competitions for semiconductors, which may not result in design wins for us, potentially leading to reduced revenues and profitability. We may not achieve design wins or our design wins may not result in future revenues.

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     We could be harmed by intellectual property litigation.
     As a general matter, the semiconductor industry is characterized by substantial litigation regarding patent and other intellectual property rights. We have been sued for purported patent infringement and have been accused of infringing the intellectual property rights of third parties. We also have certain indemnification obligations to customers and suppliers with respect to the infringement of third party intellectual property rights by our products. We could incur substantial costs defending ourselves and our customers and suppliers from any such claim. Infringement claims or claims for indemnification, whether or not proven to be true, may divert the efforts and attention of our management and technical personnel from our core business operations and could otherwise harm our business. For example, in June 2000, we were sued for patent infringement by International Rectifier Corporation. The case was ultimately resolved in our favor, but not until October 2008. In the interim, the U.S. District Court entered multimillion dollar judgments against us on two different occasions, each of which was subsequently vacated.
     In the event of an adverse outcome in any intellectual property litigation, we could be required to pay substantial damages, cease the development, manufacturing, use and sale of infringing products, discontinue the use of certain processes or obtain a license from the third party claiming infringement with royalty payment obligations upon us. An adverse outcome in an infringement action could materially and adversely affect our financial condition, results of operations and cash flows.
     We may not be able to protect our intellectual property rights adequately.
     Our ability to compete is affected by our ability to protect our intellectual property rights. We rely on a combination of patents, trademarks, copyrights, trade secrets, confidentiality procedures and non-disclosure and licensing arrangements to protect our intellectual property rights. Despite these efforts, we cannot be certain that the steps we take to protect our proprietary information will be adequate to prevent misappropriation of our technology, or that our competitors will not independently develop technology that is substantially similar or superior to our technology. More specifically, we cannot assure that our pending patent applications or any future applications will be approved, or that any issued patents will provide us with competitive advantages or will not be challenged by third parties. Nor can we assure that, if challenged, our patents will be found to be valid or enforceable, or that the patents of others will not have an adverse effect on our ability to do business. We may also become subject to or initiate interference proceedings in the U.S. Patent and Trademark Office, which can demand significant financial and management resources and could harm our financial results. Also, others may independently develop similar products or processes, duplicate our products or processes or design their products around any patents that may be issued to us.
     Because our products typically have lengthy sales cycles, we may experience substantial delays between incurring expenses related to research and development and the generation of revenues.
     The time from initiation of design to volume production of new semiconductors often takes 18 months or longer. We first work with customers to achieve a design win, which may take nine months or longer. Our customers then complete the design, testing and evaluation process and begin to ramp up production, a period that may last an additional nine months or longer. As a result, a significant period of time may elapse between our research and development efforts and our realization of revenues, if any, from volume purchasing of our products by our customers.
     The markets in which we participate are intensely competitive.
     Many of our target markets are intensely competitive. Our ability to compete successfully in our target markets depends on the following factors:
    proper new product definition;
 
    product quality, reliability and performance;
 
    product features;
 
    price;
 
    timely delivery of products;
 
    technical support and service;
 
    design and introduction of new products;
 
    market acceptance of our products and those of our customers; and
 
    breadth of product line.

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     In addition, our competitors or customers may offer new products based on new technologies, industry standards or end-user or customer requirements, including products that have the potential to replace our products or provide lower cost or higher performance alternatives to our products. The introduction of new products by our competitors or customers could render our existing and future products obsolete or unmarketable.
     Our primary power semiconductor competitors include Fairchild Semiconductor, Fuji, Hitachi, Infineon, International Rectifier, Microsemi, Mitsubishi, On Semiconductor, Powerex, Renesas Technology, Semikron International, STMicroelectronics, Toshiba and Vishay Intertechnology. Our IC products compete principally with those of Atmel, Cypress Semiconductor, Freescale Semiconductor, Matsushita, Microchip, NEC, Silicon Labs and Supertex. Our RF power semiconductor competitors include RF Micro Devices. Many of our competitors have greater financial, technical, marketing and management resources than we have. Some of these competitors may be able to sell their products at prices below which it would be profitable for us to sell our products or benefit from established customer relationships that provide them with a competitive advantage. We cannot assure that we will be able to compete successfully in the future against existing or new competitors or that our operating results will not be adversely affected by increased price competition.
     We rely on our distributors and sales representatives to sell many of our products.
     Most of our products are sold to distributors or through sales representatives. Our distributors and sales representatives could reduce or discontinue sales of our products. They may not devote the resources necessary to sell our products in the volumes and within the time frames that we expect. In addition, we depend upon the continued viability and financial resources of these distributors and sales representatives, some of which are small organizations with limited working capital. These distributors and sales representatives, in turn, depend substantially on general economic conditions and conditions within the semiconductor industry. We believe that our success will continue to depend upon these distributors and sales representatives. If any significant distributor or sales representative experiences financial difficulties, or otherwise becomes unable or unwilling to promote and sell our products, our business could be harmed. For example, All American Semiconductor, Inc., one of our former distributors, filed for bankruptcy in April 2007.
     Our future success depends on the continued service of management and key engineering personnel and our ability to identify, hire and retain additional personnel.
     Our success depends upon our ability to attract and retain highly skilled technical, managerial, marketing and finance personnel, and, to a significant extent, upon the efforts and abilities of Nathan Zommer, Ph.D., our Chief Executive Officer, and other members of senior management. The loss of the services of one or more of our senior management or other key employees could adversely affect our business. We do not maintain key person life insurance on any of our officers, employees or consultants. There is intense competition for qualified employees in the semiconductor industry, particularly for highly skilled design, applications and test engineers. We may not be able to continue to attract and retain engineers or other qualified personnel necessary for the development of our business or to replace engineers or other qualified individuals who could leave us at any time in the future. If we grow, we expect increased demands on our resources, and growth would likely require the addition of new management and engineering staff as well as the development of additional expertise by existing management employees. If we lose the services of or fail to recruit key engineers or other technical and management personnel, our business could be harmed.
     Acquisitions and expansion place a significant strain on our resources, including our information systems and our employee base.
     Presently, because of our acquisitions, we are operating a number of different information systems that are not integrated. In part because of this, we use spreadsheets, which are prepared by individuals rather than automated systems, in our accounting. In our accounting, we perform many manual reconciliations and other manual steps, which result in a high risk of errors. Manual steps also increase the possibility of control deficiencies and material weaknesses.
     We are also transferring some accounting functions to our recently acquired Philippine subsidiary from other locations. These transfers involve changing accounting systems and implementing different software from that previously used.
     If we do not adequately manage and evolve our financial reporting and managerial systems and processes, our ability to manage or grow our business may be harmed. Our ability to successfully implement our goals and comply with regulations, including those adopted under the Sarbanes-Oxley Act of 2002, requires an effective planning and management system and process. We will need to continue to improve existing, and implement new, operational and financial systems, procedures and controls to manage our business effectively in the future.
     In improving or consolidating our operational and financial systems, procedures and controls, we would expect to periodically implement new or different software and other systems that will affect our internal operations regionally or globally. The conversion process from one system to another is complex and could require, among other things, that data from the existing system be made compatible with the upgraded or different system.

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     In connection with any of the foregoing, we could experience errors, delays and other inefficiencies, which could adversely affect our business. Any error, delay, disruption, transition or conversion, including with respect to any new or different systems, procedures or controls, could harm our ability to forecast sales demand, manage our supply chain, achieve accuracy in the conversion of electronic data and record and report financial and management information on a timely and accurate basis. In addition, as we add or change functionality, problems could arise that we have not foreseen. Such problems could adversely impact our ability to do the following in a timely manner: provide quotes; take customer orders; ship products; provide services and support to our customers; bill and track our customers; fulfill contractual obligations; and otherwise run our business. Failure to properly or adequately address these issues could result in the diversion of management’s attention and resources, adversely affect our ability to manage our business and our results of operations, cash flows and stock price could be negatively affected.
     Any future growth would also require us to successfully hire, train, motivate and manage new employees. In addition, continued growth and the evolution of our business plan may require significant additional management, technical and administrative resources. We may not be able to effectively manage the growth or the evolution of our current business.
     We depend on a limited number of suppliers for our substrates, most of whom we do not have long term agreements with.
     We purchase the bulk of our silicon substrates from a limited number of vendors, most of whom we do not have long term supply agreements with. Any of these suppliers could reduce or terminate our supply of silicon substrates at any time. Our reliance on a limited number of suppliers involves several risks, including potential inability to obtain an adequate supply of silicon substrates and reduced control over the price, timely delivery, reliability and quality of the silicon substrates. We cannot assure that problems will not occur in the future with suppliers.
     Costs related to product defects and errata may harm our results of operations and business.
     Costs associated with unexpected product defects and errata (deviations from published specifications) due to, for example, unanticipated problems in our manufacturing processes, include the costs of:
    writing off the value of inventory of defective products;
 
    disposing of defective products that cannot be fixed;
 
    recalling defective products that have been shipped to customers;
 
    providing product replacements for, or modifications to, defective products; and/or
 
    defending against litigation related to defective products.
     These costs could be substantial and may, therefore, increase our expenses and lower our gross margin. In addition, our reputation with our customers or users of our products could be damaged as a result of such product defects and errata, and the demand for our products could be reduced. These factors could harm our financial results and the prospects for our business.
     We face the risk of financial exposure to product liability claims alleging that the use of products that incorporate our semiconductors resulted in adverse effects.
     Approximately 8.7% of our net revenues for the nine months ended December 31, 2010 were derived from sales of products used in medical devices, such as defibrillators. Product liability risks may exist even for those medical devices that have received regulatory approval for commercial sale. We cannot be sure that the insurance that we maintain against product liability will be adequate to cover our losses. Any defects in our semiconductors used in these devices, or in any other product, could result in significant product liability costs to us.
     If our goodwill or long-lived assets become impaired, we may be required to record a significant charge to earnings.
     Under generally accepted accounting principles, we review our long-lived assets for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Goodwill is required to be tested for impairment at least annually. Factors that may be considered a change in circumstances indicating that the carrying value of our goodwill or long-lived assets may not be recoverable include a decline in stock price and market capitalization, future cash flows and slower growth rates in our industry. In fiscal 2009, we recorded an impairment charge for the entire goodwill balance of $6.4 million, based on our estimates of the future operating results and discounted cash flows of the reporting units with goodwill.
     We estimate tax liabilities, the final determination of which is subject to review by domestic and international taxation authorities.
     We are subject to income taxes and other taxes in both the United States and the foreign jurisdictions in which we currently operate or have historically operated. We are also subject to review and audit by both domestic and foreign taxation authorities. The

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determination of our worldwide provision for income taxes and current and deferred tax assets and liabilities requires significant judgment and estimation. The provision for income taxes can be adversely affected by a variety of factors, including but not limited to changes in tax laws, regulations and accounting principles, including accounting for uncertain tax positions, or interpretation of those changes. Significant judgment is required to determine the recognition and measurement attributes prescribed in the authoritative guidance issued by FASB in connection with accounting for income taxes. Although we believe our tax estimates are reasonable, the ultimate tax outcome may materially differ from the tax amounts recorded in our consolidated financial statements and may materially affect our income tax provision, net income, goodwill or cash flows in the period or periods for which such determination is made.
     Our results of operations could vary as a result of the methods, estimates, and judgments that we use in applying our accounting policies.
     The methods, estimates, and judgments that we use in applying our accounting policies have a significant impact on our results of operations (see “Critical Accounting Policies and Significant Management Estimates” in Part I, Item 2 of this Form 10-Q). Such methods, estimates, and judgments are, by their nature, subject to substantial risks, uncertainties, and assumptions, and factors may arise over time that lead us to change our methods, estimates, and judgments. Changes in those methods, estimates, and judgments could significantly affect our results of operations.
     We are exposed to various risks related to the regulatory environment.
     We are subject to various risks related to: (1) new, different, inconsistent or even conflicting laws, rules and regulations that may be enacted by legislative bodies and/or regulatory agencies in the countries in which we operate; (2) disagreements or disputes between national or regional regulatory agencies; and (3) the interpretation and application of laws, rules and regulations. If we are found by a court or regulatory agency not to be in compliance with applicable laws, rules or regulations, our business, financial condition and results of operations could be materially and adversely affected.
     In addition, approximately 8.7% of our net revenues for the nine months ended December 31, 2010 were derived from the sale of products included in medical devices that are subject to extensive regulation by numerous governmental authorities in the United States and internationally, including the U.S. Food and Drug Administration, or FDA. The FDA and certain foreign regulatory authorities impose numerous requirements for medical device manufacturers to meet, including adherence to Good Manufacturing Practices, or GMP, regulations and similar regulations in other countries, which include testing, control and documentation requirements. Ongoing compliance with GMP and other applicable regulatory requirements is monitored through periodic inspections by federal and state agencies, including the FDA, and by comparable agencies in other countries. Our failure to comply with applicable regulatory requirements could prevent our products from being included in approved medical devices.
     Our business could also be harmed by delays in receiving or the failure to receive required approvals or clearances, the loss of previously obtained approvals or clearances or the failure to comply with existing or future regulatory requirements.
     We invest in companies for strategic reasons and may not realize a return on our investments.
     We make investments in companies to further our strategic objectives and support our key business initiatives. Such investments include investments in equity securities of public companies and investments in non-marketable equity securities of private companies, which range from early-stage companies that are often still defining their strategic direction to more mature companies whose products or technologies may directly support a product or initiative. The success of these companies is dependent on product development, market acceptance, operational efficiency, and other key business success factors. The private companies in which we invest may fail for operational reasons or because they may not be able to secure additional funding, obtain favorable investment terms for future financings or take advantage of liquidity events such as initial public offerings, mergers, and private sales. If any of these private companies fail, we could lose all or part of our investment in that company. If we determine that an other-than-temporary decline in the fair value exists for the equity securities of the public and private companies in which we invest, we write down the investment to its fair value and recognize the related write-down as an investment loss. Furthermore, when the strategic objectives of an investment have been achieved, or if the investment or business diverges from our strategic objectives, we may decide to dispose of the investment even at a loss. Our investments in non-marketable equity securities of private companies are not liquid, and we may not be able to dispose of these investments on favorable terms or at all. The occurrence of any of these events could negatively affect our results of operations.
     Our ability to access capital markets could be limited.
     From time to time, we may need to access the capital markets to obtain long term financing. Although we believe that we can continue to access the capital markets on acceptable terms and conditions, our flexibility with regard to long term financing activity could be limited by our existing capital structure, our credit ratings and the health of the semiconductor industry. In addition, many of the factors that affect our ability to access the capital markets, such as the liquidity of the overall capital markets and the current state of the economy, are outside of our control. There can be no assurance that we will continue to have access to the capital markets on favorable terms.

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     Geopolitical instability, war, terrorist attacks and terrorist threats, and government responses thereto, may negatively affect all aspects of our operations, revenues, costs and stock price.
     Any such event may disrupt our operations or those of our customers or suppliers. Our markets currently include South Korea, Taiwan and Israel, which are currently experiencing political instability. Additionally, we have accounting operations in the Philippines, our principal external foundry is located in South Korea and assembly subcontractors are located in Indonesia, the Philippines and South Korea.
     Business interruptions may damage our facilities or those of our suppliers.
     Our operations and those of our suppliers are vulnerable to interruption by fire, earthquake and other natural disasters, as well as power loss, telecommunications failure and other events beyond our control. We do not have a detailed disaster recovery plan and do not have backup generators. Our facilities in California are located near major earthquake faults and have experienced earthquakes in the past. If any of these events occur, our ability to conduct our operations could be seriously impaired, which could harm our business, financial condition and results of operations and cash flows. We cannot be sure that the insurance we maintain against general business interruptions will be adequate to cover all our losses.
     We may be affected by environmental laws and regulations.
     We are subject to a variety of laws, rules and regulations in the United States, England and Germany related to the use, storage, handling, discharge and disposal of certain chemicals and gases used in our manufacturing process. Any of those regulations could require us to acquire expensive equipment or to incur substantial other expenses to comply with them. If we incur substantial additional expenses, product costs could significantly increase. Failure to comply with present or future environmental laws, rules and regulations could result in fines, suspension of production or cessation of operations.
     Nathan Zommer, Ph.D. owns a significant interest in our common stock.
     Nathan Zommer, Ph.D., our Chief Executive Officer, beneficially owned, as of January 31, 2011, approximately 21.5% of the outstanding shares of our common stock. As a result, Dr. Zommer can exercise significant control over all matters requiring stockholder approval, including the election of the board of directors. His holdings could result in a delay of, or serve as a deterrent to, any change in control of our company, which may reduce the market price of our common stock.
     Our stock price is volatile.
     The market price of our common stock has fluctuated significantly to date. The future market price of our common stock may also fluctuate significantly in the event of:
    variations in our actual or expected quarterly operating results;
 
    announcements or introductions of new products;
 
    technological innovations by our competitors or development setbacks by us;
 
    conditions in the communications and semiconductor markets;
 
    the commencement or adverse outcome of litigation;
 
    changes in analysts’ estimates of our performance or changes in analysts’ forecasts regarding our industry, competitors or customers;
 
    announcements of merger or acquisition transactions or a failure to achieve the expected benefits of an acquisition as rapidly or to the extent anticipated by financial analysts;
 
    terrorist attack or war;
 
    sales of our common stock by one or more members of management, including Nathan Zommer, Ph.D., our Chief Executive Officer; or
 
    general economic and market conditions.
     In addition, the stock market in recent years has experienced extreme price and volume fluctuations that have affected the market prices of many high technology companies, including semiconductor companies. These fluctuations have often been unrelated or disproportionate to the operating performance of companies in our industry, and could harm the market price of our common stock.

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     The anti-takeover provisions of our certificate of incorporation and of the Delaware General Corporation Law may delay, defer or prevent a change of control.
     Our board of directors has the authority to issue up to 5,000,000 shares of preferred stock and to determine the price, rights, preferences, privileges and restrictions, including voting rights, of those shares without any further vote or action by our stockholders. The rights of the holders of common stock will be subject to, and may be harmed by, the rights of the holders of any shares of preferred stock that may be issued in the future. The issuance of preferred stock may delay, defer or prevent a change in control because the terms of any issued preferred stock could potentially prohibit our consummation of any merger, reorganization, sale of substantially all of our assets, liquidation or other extraordinary corporate transaction, without the approval of the holders of the outstanding shares of preferred stock. In addition, the issuance of preferred stock could have a dilutive effect on our stockholders.
     Our stockholders must give substantial advance notice prior to the relevant meeting to nominate a candidate for director or present a proposal to our stockholders at a meeting. These notice requirements could inhibit a takeover by delaying stockholder action. The Delaware anti-takeover law restricts business combinations with some stockholders once the stockholder acquires 15% or more of our common stock. The Delaware statute makes it more difficult for us to be acquired without the consent of our board of directors and management.

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ITEM 2.  UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
ISSUER PURCHASES OF EQUITY SECURITIES
                                 
                            (d) Maximum Number  
                            (or Approximate  
                    (c) Total Number of     Dollar Value) of  
                    Shares Purchased as     Shares that May Yet  
                    Part of Publicly     Be Purchased Under  
    (a) Total Number of     (b) Average Price     Announced Plans or     the Plans or  
Period   Shares Purchased     Paid per Share     Programs     Programs  
October 1, 2010 — October 31, 2010
          (1 )           1,905,600  
November 1, 2010 — November 31, 2010
    32,000     $ 10.59       32,000       (2)
December 1, 2010 —December 31, 2010
          (1 )            
 
                         
Total
    32,000     $ 10.59       32,000          
 
                         
 
(1)   Not applicable.
 
(2)   A stock purchase program to purchase up to 2,000,000 shares of common stock was approved on November 14, 2008. On August 26, 2010, an additional 932,100 shares of common stock were added to the program. The program expired on November 13, 2010.
ITEM 3.  DEFAULTS UPON SENIOR SECURITIES
Not applicable.
ITEM 5.  OTHER INFORMATION
Not applicable.
ITEM 6.  EXHIBITS
See the Index to Exhibits, which is incorporated by reference herein.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
         
  IXYS CORPORATION
 
 
  By:   /s/ Uzi Sasson    
Date: February 4, 2011    Uzi Sasson, President and Chief Financial Officer   
    (Principal Financial Officer)   
 

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EXHIBIT INDEX
     
Exhibit    
No.   Description
10.1
  Second Amendment to the Credit Agreement by and between Bank of the West and IXYS Corporation dated as of December 29, 2010.
 
   
31.1
  Certificate of Chief Executive Officer required under Section 302 of the Sarbanes-Oxley Act of 2002.
 
   
31.2
  Certificate of Chief Financial Officer required under Section 302 of the Sarbanes-Oxley Act of 2002.
 
   
32.1
  Certification required under Section 906 of the Sarbanes-Oxley Act of 2002. (1)
 
(1)   This exhibit is furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities and Exchange Act of 1933, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities and Exchange Act of 1993, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

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