Cadence Design Systems (CDNS) 10-K 2005 FY Annual report

Exhibit 32.02

CERTIFICATION OF CHIEF FINANCIAL OFFICER
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 Annual Report on Form 10-K for the fiscal year ended December 31, 2005 of Cadence Design Systems, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William Porter, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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 results of operations of the Company.

/s/ William Porter

William Porter 

Senior Vice President and Chief Financial Officer Date: March 10, 2006 

A signed original of this written statement required by Section 906 has been provided to Cadence Design Systems, Inc. and will be retained by Cadence and furnished to the Securities and Exchange Commission or its staff upon request.