MENT Mentor Graphics Corp.

Mentor Graphics Corporation (NASDAQ:MENT) today announced that Walden C. Rhines, the company chairman and CEO, will present a keynote address at the Semico Summit in Scottsdale, Arizona. Rhines will present "Differentiating by Design" on Monday, March 12, 2007 at 10:45 a.m. Register for the conference online at: http://www.semico.com/eventsummit/summit.asp. Who: Walden C. Rhines, Mentor Graphics� chairman and CEO What: Keynote address "Differentiating by Design," presented at the Semico Summit When: Monday, March 12, 2007 at 10:45 a.m. Where: Camelback Inn, 5402 E. Lincoln Drive, Scottsdale, Arizona About the Semico Summit Semico, a semiconductor marketing and consulting research company located in Phoenix, Arizona, has presented the Semico Summit since 1997. The Summit offers ample opportunities for interaction with top-level leaders in a casual setting. Featured presentations are delivered by internationally recognized semiconductor industry leaders and followed by lively Q&A sessions. 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 about $800 million and employs approximately 4,250 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. 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.)