Exhibit 99.1

Cohu Reports Fourth Quarter and Full Year 2010 Operating Results

POWAY, Calif., January 26, 2011 — Cohu, Inc. (NASDAQ:COHU) today reported fiscal 2010 fourth quarter net sales of $96.9 million and GAAP net income of $9.4 million or $0.39 per share. Net sales for the twelve months ended 2010 were $322.7 million and GAAP net income was $24.6 million or $1.02 per share.

The Company also reported non-GAAP results, with fourth quarter 2010 net income of $11.7 million or $0.48 per share and net income of $33.2 million or $1.38 per share for the twelve months ended 2010.

GAAP Results

		Q4 FY 2010		Q3 FY 2010		Q4 FY 2009
Net sales		$96.9 million		$86.1 million		$52.2 million
Net income		$9.4 million		$7.6 million		$0.8 million
Income per share		$0.39		$0.32		$0.03
		12 Months 2010		12 Months 2009
Net sales		$322.7 million		$171.3 million
Net income (loss)		$24.6 million		$(28.2) million
Income (loss) per share		$1.02		$(1.20)

Non-GAAP Results

		Q4 FY 2010		Q3 FY 2010		Q4 FY 2009
Non-GAAP net income		$11.7 million		$9.8 million		$2.5 million
Non-GAAP income per share		$0.48		$0.41		$0.11
		12 Months 2010		12 Months 2009
Non-GAAP net income (loss)		$33.2 million		$(1.9) million
Non-GAAP income (loss) per share		$1.38		$(0.08)

Sales of semiconductor equipment accounted for 79.0% of fiscal 2010 fourth quarter sales. Microwave communications equipment and video cameras and related equipment contributed 15.9% and 5.1%, respectively, for the same period.

Orders were $75.8 million for the fourth quarter of 2010 and $90.0 million for the third quarter of 2010. Orders for semiconductor equipment were $67.1 million in the fourth quarter of 2010 compared to $74.0 million in the third quarter of 2010. Total consolidated backlog was $99.6 million at December 25, 2010 compared to $120.8 million at September 25, 2010. Cohu expects first quarter 2011 sales to be between $85 million and $90 million.

James A. Donahue, Chairman, President and Chief Executive Officer stated, “Sales for the fourth quarter and fiscal 2010 set new records for Cohu and this was the fourth consecutive quarter of increased operating income and earnings per share, on a non-GAAP basis. For 2010, non-GAAP earnings per share increased to $1.38 from a loss of $0.08 in 2009. Sales for Cohu’s Semiconductor Equipment Group increased 128% year-over-year. Rasco achieved record sales, demonstrating the competitive strength of their product line and synergies that have been realized following our acquisition of the company in late 2008.”

Donahue concluded, “We are encouraged by last week’s report from SEMI, that showed December 2010 industry-wide orders for back-end semiconductor equipment increased sequentially for the first time since last July.”

Cohu’s Board of Directors approved a quarterly cash dividend of $0.06 per share payable on April 22, 2011 to shareholders of record on March 8, 2011. Cohu has paid consecutive quarterly cash dividends since 1977.

Use of Non-GAAP Financial Information:

Included within this press release are non-GAAP financial measures that supplement the Company’s Condensed Consolidated Statements of Operations prepared under generally accepted accounting principles (GAAP). These non-GAAP financial measures adjust the Company’s actual results prepared under GAAP to exclude charges and the related income tax effect for share-based compensation, the amortization of acquired intangible assets, inventory step-up adjustments and the deferred tax asset valuation allowance. Reconciliations of GAAP to non-GAAP amounts for the periods presented herein are provided in schedules accompanying this release and should be considered together with the Condensed Consolidated Statements of Operations.

These non-GAAP measures are not meant as a substitute for GAAP, but are included solely for informational and comparative purposes. The Company’s management believes that this information can assist investors in evaluating the Company’s operational trends, financial performance, and cash generating capacity. Management believes these non-GAAP measures allow investors to evaluate Cohu’s financial performance using some of the same measures as management. However, the non-GAAP financial measures should not be regarded as a replacement for (or superior to) corresponding, similarly captioned, GAAP measures.

Forward Looking Statements:

Certain matters discussed in this release, including statements concerning Cohu’s new products and expectations of business conditions, orders, sales, revenues and operating results are forward-looking statements that are subject to risks and uncertainties that could cause actual results to differ materially from those projected or forecasted. Such risks and uncertainties include, but are not limited to, our ability to convert new products under development into production on a timely basis, support product development and meet customer delivery and acceptance requirements for next generation equipment; failure to obtain customer acceptance resulting in the inability to recognize revenue and accounts receivable collection problems; customer orders may be canceled or delayed; inventory, goodwill and other intangible asset write-downs; the concentration of our revenues from a limited number of customers; intense competition in the semiconductor test handler industry; our reliance on patents and intellectual property; compliance with U.S. export regulations; and the cyclical and unpredictable nature of capital expenditures by semiconductor manufacturers. These and other risks and uncertainties are discussed more fully in Cohu’s filings with the Securities and Exchange Commission, including the most recently filed Form 10-K and Form 10-Q. Cohu assumes no obligation to update the information in this release.

About Cohu:

Cohu is a supplier of test handling, burn-in and thermal solutions used by the global semiconductor industry, microwave communications and video equipment.

Cohu will be conducting their conference call on Wednesday, January 26, 2011 at 1:30 p.m. Pacific Time/4:30 p.m. Eastern Time. The call will be webcast at www.cohu.com. Replays of the call can be accessed at www.cohu.com.

For press releases and other information of interest to investors, please visit Cohu’s website at www.cohu.com. Contact: Jeffrey D. Jones — Investor Relations (858) 848-8106

COHU, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)
(in thousands, except per share amounts)

		Three Months Ended (1)								Twelve Months Ended (1)
		December 25,				December 26,				December 25,				December 26,
		2010				2009				2010				2009
Net sales		$	96,902			$	52,193			$	322,667			$	171,261
Cost and expenses:
Cost of sales			64,411				35,745				212,672				118,873
Research and development			9,741				7,942				36,201				31,964
Selling, general and administrative			12,252				9,088				44,117				35,519
			86,404				52,775				292,990				186,356
Income (loss) from operations			10,498				(582	)			29,677				(15,095	)
Interest and other, net			122				172				561				1,300
Income (loss) before income taxes			10,620				(410	)			30,238				(13,795	)
Income tax provision (benefit) (2)			1,192				(1,180	)			5,594				14,373
Net income (loss)		$	9,428			$	770			$	24,644			$	(28,168	)
Income (loss) per share:
Basic		$	0.39			$	0.03			$	1.04			$	(1.20	)
Diluted		$	0.39			$	0.03			$	1.02			$	(1.20	)
Weighted average shares used in computing income (loss) per share (3):
Basic			23,922				23,495				23,732				23,412
Diluted			24,323				23,746				24,097				23,412

COHU, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands) (Unaudited)

		December 25,				December 26,
		2010				2009
Assets:
Current assets:
Cash and investments		$	98,175			$	84,906
Accounts receivable			66,801				43,389
Inventories			63,224				52,428
Deferred taxes and other			12,017				12,827
Total current assets			240,217				193,550
Property, plant & equipment, net			39,804				38,006
Goodwill			58,498				61,764
Intangible assets, net			26,523				35,483
Other assets			1,001				1,315
Total assets		$	366,043			$	330,118
Liabilities & Stockholders’ Equity:
Current liabilities:
Deferred profit		$	14,834			$	5,322
Other current liabilities			56,700				48,631
Total current liabilities			71,534				53,953
Deferred taxes and other noncurrent liabilities			19,784				18,916
Stockholders’ equity			274,725				257,249
Total liabilities & stockholders’ equity		$	366,043			$	330,118

COHU, INC.
Supplemental Reconciliation of GAAP Results to Non-GAAP Financial Measures (Unaudited)
(in thousands, except per share amounts)

						Three Months Ended
		December 25,				September 25,				December 26,
		2010				2010				2009
Income (loss) from operations — GAAP basis (a)		$	10,498			$	8,781			$	(582	)
Non-GAAP adjustments:
Share-based compensation included in (b):
Cost of goods sold			64				84				106
Research and development			334				321				320
Selling, general and administrative			602				557				478
			1,000				962				904
Amortization of intangible assets included in (c):
Cost of goods sold			1,325				1,259				1,420
Research and development			—				—				—
Selling, general and administrative			210				200				226
			1,535				1,459				1,646
Income from operations — non-GAAP basis (d)		$	13,033			$	11,202			$	1,968
Net income — GAAP basis		$	9,428			$	7,611			$	770
Non-GAAP adjustments (as scheduled above)			2,535				2,421				2,550
Tax effect of non-GAAP adjustments (e)			(285	)			(261	)			(773	)
Net income — non-GAAP basis		$	11,678			$	9,771			$	2,547
GAAP net income per share — diluted		$	0.39			$	0.32			$	0.03
Non-GAAP net income per share — diluted (f)		$	0.48			$	0.41			$	0.11

COHU, INC.
Supplemental Reconciliation of GAAP Results to Non-GAAP Financial Measures (Unaudited)
(in thousands, except per share amounts)

		Twelve Months Ended
		December 25,				December 26,
		2010				2009
Income (loss) from operations — GAAP basis (a)		$	29,677			$	(15,095	)
Non-GAAP adjustments:
Share-based compensation included in (b):
Cost of goods sold			297				347
Research and development			1,121				1,145
Selling, general and administrative			2,125				1,886
			3,543				3,378
Amortization of intangible assets included in (c):
Cost of goods sold			5,229				5,398
Research and development			—				—
Selling, general and administrative			830				857
			6,059				6,255
Inventory step-up included in costs of goods sold (d)			180				—
Income (loss) from operations — non-GAAP basis (e)		$	39,459			$	(5,462	)
Net income (loss) — GAAP basis		$	24,644			$	(28,168	)
Non-GAAP adjustments (as scheduled above)			9,782				9,633
Tax effect of non-GAAP adjustments (f)			(1,204	)			(2,916	)
Non-cash increase of valuation allowance (g)			—				19,551
Net income (loss) — non-GAAP basis		$	33,222			$	(1,900	)
GAAP net income (loss) per share — diluted		$	1.02			$	(1.20	)
Non-GAAP net income (loss) per share — diluted (h)		$	1.38			$	(0.08	)