Mentor Graphics Announces Design-for-Test Support for Artisan Components' Embedded Memories

9/19/2002 - Mentor Graphics announced an enhanced level of support for Artisan Components® embedded memory products. With the Mentor Graphics® MBISTArchitectTM tool, users of Artisan memories can apply memory built-in self-test (BIST) structures to diagnose and repair manufacturing defects with minimal impact on design time and maximum impact on achieving high-quality test results and manufacturing yield.

According to the 2001 edition of the International Technology Roadmap for Semiconductors (ITRS), the percentage of embedded memory used in system-on-chip (SoC) designs is steadily increasing. By the year 2005, the ITRS estimates SoC designs will be comprised of 71% memory. This increase in memory utilization requires effective memory test and repair methodologies. By utilizing the memory redundancy provided with the Artisan Flex-RepairTM solution, in concert with the MBISTArchitect tool’s BIST application, SoC designs can achieve high-test quality for improved yields.

The comprehensive detection techniques offered by the MBIST Full-SpeedTM feature, the MBISTArchitect tool's at-speed testing capability, in combination with the versatile memory test algorithms, including the MBIST FlexTM user-definable algorithm feature, ensure subtle defects are identified and corrected by replacing them with redundant cells.

"The combination of memory BIST with memory redundancy offers our customers an effective strategy to improve SoC design quality and yield. Artisan’s Flex-Repair Memory solutions are designed with an "open-standard" interface to allow easy interoperability with leading embedded memory test solutions," said Dhrumil Gandhi, senior vice president of product technology, Artisan Components. "We are pleased to have this support for Artisan’s Flex-Repair Memories in the Mentor Graphics MBISTArchitect tool."

To facilitate repair, MBISTArchitect creates diagnostic circuitry to determine the location of any defects. To simplify the operation, the output identifies the memory column that must be replaced. This diagnostic data is mapped to physical coordinates for laser fuse blowing correction of the error. To aid laser fuse methodologies, Artisan has included a Fuse Box Generator feature in its Flex-Repair memories so customers can store the repair information for the memories. The Fuse Box can be located anywhere on the circuit and is optimized for low-power consumption.

"We’ve had great success using Artisan memory generators for customer designs that require the highest performance in density, speed and power," said Joseph Reynick, director, DFT and EDA solutions, eSilicon Corporation. "Because these customers demand best-in-class technology, we’re thrilled that we can now offer Artisan memories with Mentor Graphics MBISTArchitect to identify and repair manufacturing defects with premium, accurate test results without negatively impacting crucial design time."

About Mentor Graphics Design-for-Test Tools
MBISTArchitect is part of the most comprehensive DFT solutions portfolio of any EDA supplier in the market. For today’s complex System-on-Chip (SoC) and deep-submicron designs, Mentor Graphics offers DFT solutions for memory BIST, logic BIST, boundary scan, automatic test pattern generation (ATPG) and embedded deterministic test (EDTTM). Mentor Graphics DFT centers of Excellence are located worldwide and employ the industry’s leading professionals in the research and application of proven DFT solutions.

About Mentor Graphics
Mentor Graphics Corporation 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 $600 million and employs approximately 3,700 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.

Mentor Graphics is a registered trademark and MBISTArchitect, MBIST Flex and MBIST Full-Speed are trademarks of Mentor Graphics Corporation. Artisan Components is a registered trademark of Artisan Components, Inc.

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