Mentor Graphics Calibre InRoute, Catapult C and FloTHERM Products Selected for EDN Magazine’s Hot 100

WILSONVILLE, Ore., December 23, 2010 - Mentor Graphics Corporation (NASDAQ: MENT) today announced that the Calibre® InRoute™, Catapult® C, and FloTHERM® products were selected for EDN magazine’s Hot 100 for 2010. The Hot 100 is EDN’s list of “the products and technologies that in 2010 heated up the electronics world and grabbed the attention of our editors and our readers.”

Olympus-SoC and Calibre Speed IC Physical Design Closure
The Calibre InRoute platform allows designers to natively invoke Calibre tools within the Olympus-SoC™ place and route system to achieve true manufacturing closure during physical design. The Calibre InRoute product automatically detects and fixes design rule checking (DRC) violations and performs design for manufacturing (DFM) enhancements while optimizing for area, timing, power and signal integrity. The full power of the Olympus-SoC and Calibre platforms together improve design quality, eliminate late-stage surprises, and significantly reduce time to closure.

FloTHERM 9 Addresses Thermal Bottlenecks
Version nine of the FloTHERM 3D CFD (computational fluid-dynamics) software for electronics cooling applications includes patent-pending technology, including a bottleneck field that shows areas in a design where a heat path is being congested as it attempts to flow from high junction temperature points to ambient. Design changes to these bottlenecks can help solve the heat flow problem. The Shortcut field highlights areas where the addition of a simple element to the design will provide a new effective heat flow path to ambient temperature. As a result, instead of experimenting with trial and error solutions, engineers can achieve a better solution significantly faster.

Mentor Adds SystemC Support to Catapult C
The Catapult C Synthesis tool added SystemC synthesis, expanding the Catapult C tool’s full-chip synthesis capabilities. This complements the Catapult C tool’s existing untimed ANSI C++ support for algorithmic, control logic, and low power synthesis capabilities by expanding its full-chip synthesis application scope through the addition of SystemC synthesis for efficient handling of specific SoC needs such as complex bus interfaces, SoC interconnect and TLM2.0-based ESL flows.

About EDN.com
EDN.com is a comprehensive information source for the EOEM (electronics original equipment manufacturer) segment, providing in-depth technical information for electronics design engineers and news and strategic business insight for executives.

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 electronic, semiconductor and systems companies. Established in 1981, the company reported revenues over the last 12 months of about $850 million. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com/.

(Mentor Graphics, Calibre, Catapult and FloTHERM are registered trademarks, and Olympus-SoC and InRoute are trademarks of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owners.)

For more information, please contact:

Gene Forte
Mentor Graphics
503.685.1193
gene_forte@mentor.com

Sonia Harrison
Mentor Graphics
503.685.1165
sonia_harrison@mentor.com