Mentor Graphics Chairman and CEO to Present Keynote at Semicon West

WILSONVILLE, Ore., July 13, 2009 – Mentor Graphics Corporation (NASDAQ: MENT) today announced that Dr. Walden C. Rhines, Chairman and CEO, will present the following keynote at Semicon West 2009 in San Francisco, CA.

Who: Dr. Walden C. Rhines, Chairman and CEO, Mentor Graphics Corporation

What: Presenting “World Semiconductor Dynamics: Myth vs. Reality”

When: Tuesday, July 14, 9:00 AM – 9:45 AM

Where: Novellus Theatre at the Yerba Buena Center for the Arts (across from Moscone Center)

In his keynote address, Dr. Rhines explores some of the issues confronting the EDA industry in today’s tough economic environment and presents historical data and trends of the semiconductor industry with conclusions that may surprise you.

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 4,425 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: www.mentor.com/.