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10-Q - FORM 10-Q - PDF SOLUTIONS INCpdf_10q-033111.htm
EX-31.1 - EXHIBIT 31.1 - PDF SOLUTIONS INCex31-1.htm
EX-31.2 - EXHIBIT 31.2 - PDF SOLUTIONS INCex31-2.htm
EX-32.1 - EXHIBIT 32.1 - PDF SOLUTIONS INCex32-1.htm
EXHIBIT 32.02

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of PDF Solutions, Inc. (the “Company”) on Form 10-Q for the quarter ended March 31, 2011 as filed with the Securities and Exchange Commission on May 10, 2011 (the “Report”), I, Joy E. Leo, EVP, Chief Administration Officer and Acting Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.
 
 
By:
/s/ JOY E. LEO  
   
Joy E. Leo
 
   
EVP, Chief Administration Officer and Acting Chief Financial Officer
 
    (Principal Financial Officer)  
 
Date: May 10, 2011