MENT Mentor Graphics Corp.

Mentor Graphics Corporation (Nasdaq:MENT) today announced that Walden C. Rhines, the company's chairman and CEO, will keynote the Semiconductor Strategic Business Conference (SBC) 2005 on May 10 at The Resort at the Mountain in Welches, Oregon. Rhines will discuss how design-for-manufacturing (DFM) is fundamentally changing the design/manufacturing partnership to enable faster yield time in the semiconductor industry, as nanometer designs enter the mainstream. -0- *T What: Mentor Graphics keynote by Walden C. Rhines, Chairman and CEO, Mentor Graphics Corporation, at SBC. Topic: Design-for-Manufacturing When: Tuesday, May 10, 2005, 8:00 - 8:45 a.m. PDT Where: The Resort at the Mountain, 68010 East Fairway Ave., Welches, OR 97067, 503-622-3101 Website: http://wps2a.semi.org/wps/portal/_pagr/114/_pa.114/ *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.