POWER OF ATTORNEY
I, Mary A. Wilderotter, hereby authorize Lip-Bu Tan, James J. Cowie,
Geoffrey G. Ribar, Yoonie Y. Chang, Shirley X. Li, Christopher W. Yap or
Elizabeth R. Villalobos of Cadence Design Systems, Inc., a Delaware
corporation (the "Company"), to sign and file on my behalf the Initial
Statement of Beneficial Ownership of Securities on Form 3, the Statements of
Changes in Beneficial Ownership on Forms 4 and 5 and any amendments
and applications thereto, to be filed with the U.S. Securities and Exchange
Commission pursuant to Section 16(a) of the Securities Act of 1934, as
amended, relating to my beneficial ownership of securities in the Company.

I hereby grant to each such attorney-in-fact full power and authority
to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as
I might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all
that such attorney-in-fact, or such attorney-in-fact's substitute
or substitutes, shall lawfully do or cause to be done by virtue of
this power of attorney and the rights and powers herein granted.
I acknowledge that the foregoing attorney-in-fact, in serving in
such capacity at my request, is not assuming, nor is the Company
assuming, any of my responsibilities to comply with Section 16 of
the Securities Exchange Act of 1934, as amended.

This shall remain in effect until I am no longer required to file
forms under Section 16 of the Securities Exchange Act of 1934, as
amended, with respect to the Company's securities, unless earlier
revoked in writing delivered to the foregoing attorneys-in-fact.

Date: June 6, 2017

/s/ Mary A. Wilderotter
Mary A. Wilderotter