eSilicon Joins TSMC Design Center Alliance

Custom Chip Provider Further Streamlines Silicon Delivery Process

SUNNYVALE, Calif. and Hsinchu, TAIWAN — March 8, 2004 — eSilicon Corporation, a leading custom chip company, and Taiwan Semiconductor Manufacturing Company Ltd. (TSMC) (NYSE: TSM) today announced that eSilicon has joined TSMC’s Design Center Alliance Program.

"TSMC has provided superior customer service and manufacturing excellence since the beginning of our relationship," said Jack Harding, chairman, president and CEO of eSilicon. "Acceptance into this program validates our business model and strengthens our access to advanced technologies and processes for our customers."

eSilicon and TSMC have a relationship that has been in place since eSilicon was founded four years ago. That relationship helps to provide access to TSMC technologies and support, resulting in a more efficient delivery of silicon for TSMC customers.

"Through eSilicon’s business model, TSMC can offer customers access to a best in class supply chain while eSilicon manages the entire process for them from initial concept to final delivery of packaged, tested chips," said Genda Hu, vice president of marketing for TSMC. "Adding the company to our Design Center Alliance helps customers reduce risk and time to market by accelerating the design and manufacturing process. TSMC continues to expand the service and upgrade the service quality of our Design Center Alliance. The addition of eSilicon to the DCA program re-confirms this commitment to our customers."

About eSilicon Corporation

eSilicon Corporation is a full-service provider of custom chips to the world’s leading electronics companies. Founded in 2000, the company’s unique approach manages every step of the IC development process — from specification through manufacturing and delivery of packaged and tested parts. eSilicon offers value-added design and manufacturing expertise, with an ebusiness infrastructure that provides significant visibility, predictability and time-to-market advantages. Headquartered in Sunnyvale, CA with offices in Allentown, PA, and Murray Hill, NJ, eSilicon has approximately 80 employees. For more information about eSilicon, visit www.eSilicon.com.

About TSMC

TSMC is the world’s largest dedicated semiconductor foundry, providing the industry’s leading process technology and the foundry industry’s largest portfolio of process-proven library, IP, design tools and reference flows. The company operates one advanced 300mm wafer fab, five eight-inch fabs and one six-inch wafer fab. TSMC also has substantial capacity commitments at two joint ventures fabs (VIS and SSMC) and its wholly-owned subsidiary, WaferTech. In early 2001, TSMC became the first IC manufacturer to announce a 90-nm technology alignment program with its customers. TSMC’s corporate headquarters are in Hsinchu, Taiwan. For more information about TSMC see www.tsmc.com.

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