Synopsys, Inc. (NASDAQ: SNPS) today announced the Federal Trade Commission (FTC) has requested additional information and documentary material in connection with its review of Synopsys' proposed acquisition of Nassda Corporation (NASDAQ: NSDA). Synopsys intends to promptly respond to the FTC request.

The FTC request extends the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976.

Synopsys announced on December 1, 2004, that Synopsys and Nassda had entered into a merger agreement providing for the acquisition of Nassda by Synopsys in an all cash transaction at $7.00 per share and, subject to the closing of the acquisition, to settle all outstanding litigation by Synopsys against Nassda and certain Nassda officers, directors and employees.

About Synopsys

Synopsys, Inc. is a world leader in electronic design automation (EDA) software for semiconductor design. The company delivers technology-leading IC design and verification platforms and IC manufacturing software products to the global electronics market, enabling the development and production of complex systems-on-chips (SoCs). Synopsys also provides intellectual property and design services to simplify the design process and accelerate time-to- market for its customers. Synopsys is headquartered in Mountain View, California and has offices in more than 60 locations throughout North America, Europe, Japan and Asia. Visit Synopsys online at www.synopsys.com.

NOTE: Synopsys is a registered trademark of Synopsys, Inc. All other trademarks mentioned in this release are the intellectual property of their respective owners.

SOURCE: Synopsys, Inc.

CONTACT: investors, Minaxi Patel, +1-650-584-1901, or
minaxi@synopsys.com, or Yvette Huygen, +1-650-584-4547, or
yvetteh@synopsys.com, both of Synopsys, Inc.

Web site: http://www.synopsys.com/