Burt Rutan to Keynote Mentor Graphics 21st Annual International User Conference.

WILSONVILLE, Ore. -- Mentor Graphics Corporation (Nasdaq:MENT) today announced that registration is open for its 21st annual international User2User conference, aimed at designers of leading electronics. User2User 2005 will be held April 27-29 at the Santa Clara Marriott in Santa Clara, Calif. The event will feature two keynote speakers. Aviation pioneer Burt Rutan, chief designer of SpaceShipOne, the world's first private manned spacecraft, will present the first keynote. SpaceShipOne earned the $10 million Ansari X-Prize for its two successful launches into space within a 14-day time frame. The second keynote speaker will be Michael Sander of NASA Jet Propulsion Laboratories (JPL). Sander leads the JPL efforts in support of the new NASA Exploration Initiative. In addition, Adam Savage and Jamie Hyneman of the Discovery Channel's MythBusters will also make an appearance.

User2User 2005 will offer attendees the opportunity to interact directly with other Mentor tool users, technology experts, partners and tools. It will feature approximately 170 technical presentations, many by users from companies and government agencies such as NASA, Sun, Motorola, Nokia, Mitsubishi, Samsung, Lucent and Freescale. User2User 2005 technology tracks will include mixed-signal design, custom integrated circuit (IC) design, printed circuit board (PCB) design, design-for-test (DFT), emulation, field programmable gate array (FPGA) design, hardware/software co-verification, high-speed design, nanometer design and verification, simulation and design environment.

The two keynotes focus on pioneering designs that enhance our ability to travel in various environments, including space. A gifted engineer, adventurer and entrepreneur, Rutan also designed the record-breaking Voyager -- the first airplane to circle the world non-stop without refueling. Similarly, Sander is known for heading the development of the next-generation Mars Lander, which will contain increased payload and have the ability to operate on the surface of Mars for several years. By contrast, Savage and Hyneman specialize in designing methods and experiments that they use to prove or disprove widely held beliefs. The duo will discuss the origins of the show, share a blooper reel and conduct several live demonstrations.

Early Bird registration discounts will be available for a limited time beginning Feb. 9, 2005. Members of Mentor Graphics User Group (MUG) will receive an additional $50 off for registering early. For more information on the conference and to register, visit www.mentor.com/user2user. To join MUG, visit www.mugweb.org.

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 $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.