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Mentor Graphics’ Integrated Constraint Entry System Facilitates High-Productivity Team Design of PCB Systems

WILSONVILLE, Ore., March 28, 2005 - Mentor Graphics Corporation (Nasdaq: MENT), the market leader in printed circuit board (PCB) design software, today announced it has released its next-generation constraint editor system (CES) into its Expedition™ Series and Board Station{reg} RE PCB design flows. Mentor is leading the way by enabling definition, adherence and verification of physical constraints throughout the entire PCB systems design process for complex designs, improving designer productivity and design quality. CES tightly integrates with the entire systems design flow from schematic entry through physical layout, facilitating multi-disciplined communication of high-speed design rules and constraints between engineers, designers and their tools.

"Because of topology awareness, CES has made it much easier to constrain complex, high-speed circuitry," stated Clint Harames, senior hardware design engineer, F5 Networks. "Our constraint entry time has been tremendously reduced, allowing us to get products to market faster and we are only scratching the surface of its capabilities. I look forward to exploiting CES' scripting capabilities, which will further reduce our constraint entry time."

Mentor Graphics® CES provides a unified interface for design engineers and layout designers to specify and verify constraints. CES is fully integrated into the Mentor Graphics PCB system design solutions, providing a seamless flow of constraints from schematic through layout to final verification. Constraints can be entered in terms familiar to team members through a common GUI and then automatically accessed by individual tools in their native formats. Productivity gains can be realized through usability features such as automatic differential pair identification and constraint templates, which make entering complex constraints much easier. Advanced automatic topology and an interactive tuning meter are enabled when CES is used in the design flow.

An important aspect of CES is its ability to provide customers with design rules and constraints that can be developed and modified throughout the design process. These rules and constraints then become intellectual property (IP) that is available to designers and engineers for their current designs, as well as future designs. This ability to reuse the physical design IP through a single entry point for management and access is what sets CES apart from other solutions currently available.

CES also supports bi-directional cross probing, which highlights and selects between a spreadsheet-based constraint interface and the schematic capture and layout tools, enabling designers to view nets and constraints in their native environment. In addition, constraint values are fully synchronized during the forward and backward annotation process with intelligent handling of connectivity changes. Users can create hierarchical rule classes that ease the association of constraints to design objects. Nets can be constrained by one rule at the class level, significantly reducing the number of constraints manually entered in the design. CES also supports user- and pre-defined automatic topologies, enabling quick assignment of pin ordering that is utilized throughout the design process.

"Our customers consistently face design cycle time and product quality pressures in today's competitive environment," said Henry Potts, vice president and general manager, Systems Design Division, Mentor Graphics. "In an effort to meet customer demands, we continue to develop next generation solutions that enable them to overcome their design challenges. With the superior integration of our CES solution our customers are able to experience significant productivity gains and improved design quality."

Pricing and Availability The Constraint Editor System is available immediately at no cost for current Expedition Series and Board Station customers. More information is available at or by calling 1-800-547-3000 ext. 2.

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:

Mentor Graphics and Board Station are registered trademarks and Expedition is a trademark 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:

Debra Layton
Mentor Graphics

Suzanne Graham
Mentor Graphics

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