MENT Mentor Graphics Corp.

Mentor Graphics Corporation (Nasdaq:MENT) today announced that Walden C. Rhines, the company's chairman and CEO, will keynote In-Stat's Spring Processor Forum (formerly Embedded Processor Forum) on May 17 at The Doubletree Hotel in San Jose, California. In his keynote, entitled "Moore's Law is Unconstitutional," Rhines will explain how semiconductor costs will continue to decrease, even as the semiconductor industry reaches the terminal limits of device scaling, due to a multitude of factors other than transistor doubling. -0- *T What: Mentor Graphics keynote by Walden C. Rhines, Chairman and CEO, Mentor Graphics Corporation, at In-Stat's Spring Processor Forum Title: Moore's Law is Unconstitutional When: Tuesday, May 17, 2005, 8:05 a.m. PDT Where: Gateway Ballroom, The Doubletree Hotel, 2050 Gateway Place, San Jose, CA 95110, 408-453-4000 Website: http://www.in-stat.com/spf/05/ *T About Mentor Graphics Mentor Graphics Corporation (Nasdaq:MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world's most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of over $700 million and employs approximately 3,850 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777; Silicon Valley headquarters are located at 1001 Ridder Park Drive, San Jose, California 95131-2314. World Wide Web site: http://www.mentor.com/. Mentor Graphics is a registered trademark of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owners.