Synopsys, Inc. (NASDAQ: SNPS), the world leader in semiconductor design software, today announced it would report results for its fourth quarter and full year fiscal 2004 on Wednesday, December 1, 2004 after the market closes.

A conference call to review the results will begin at 2 p.m. PST (5 p.m. EST) and will be hosted by Aart de Geus, Chairman and CEO, and Steve Shevick, Chief Financial Officer.

Financial and other statistical information to be discussed on this conference call will be available on the corporate website at http://www.synopsys.com/corporate/invest/invest.html immediately before the conference call. A live webcast of the conference call will also be available at the corporate web site at http://www.synopsys.com/corporate/invest/invest.html. Participants should access the live call at least 15 minutes prior to the call. A webcast replay of the conference call can be accessed from the corporate website at http://www.synopsys.com/corporate/invest/invest.html. The replay will be available beginning Wednesday, December 1, 2004 at approximately 5:30 p.m. PT through to the time of the announcement of the company's first quarter earnings results in February. In addition, a dial-up replay of the conference call will be available beginning Wednesday, December 1, 2004 at 5:30 p.m. PT and ending on December 10, 2004. The replay telephone number is USA (800) 475-6701, International (320) 365-3844, Access Code: 754504.

About Synopsys

Synopsys, Inc. is the world leader in electronic design automation (EDA) software for semiconductor design. The company delivers technology-leading semiconductor 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 http://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 of Synopsys, Inc., +1-650-584-1901

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