Appeals Court Reverses Dismissal of Patents in Oregon Proceeding

No Impact on Synopsys' Emulation Sales or Support

MOUNTAIN VIEW, Calif., March 16, 2017 -- Synopsys, Inc. (Nasdaq:SNPS) today announced that a federal appellate court has affirmed an Oregon jury's finding that certain features of Synopsys' ZeBu software product infringed a Mentor Graphics patent, and affirmed the jury's damages award of $36 million. This ruling has no impact on Synopsys' sales or support of ZeBu emulation systems, as these systems no longer include the features found to infringe. Synopsys disagrees with the ruling and may seek further review.

The appellate court also reversed the trial court's dismissal of three other Mentor patents asserted against ZeBu, two of which have expired. Proceedings on those patents will resume in the trial court and could last up to two years. Synopsys believes that it does not infringe these patents and that they are invalid, and will vigorously defend the new proceedings.

The court granted Synopsys' appeal regarding its '109 patent (U.S. Patent No. 6,132,109) asserted against Mentor. Proceedings on that patent will resume in the trial court and could also last up to two years.

Synopsys sells, ships and supports ZeBu emulation systems worldwide, and is committed to investing in and expanding our emulation business. ZeBu is the fastest-growing emulation system in the industry, reflecting its unmatched performance and scalability.

About Synopsys

Synopsys, Inc. (Nasdaq: SNPS) is the Silicon to Software™ partner for innovative companies developing the electronic products and software applications we rely on every day. As the world's 15th largest software company, Synopsys has a long history of being a global leader in electronic design automation (EDA) and semiconductor IP and is also growing its leadership in software security and quality solutions. Whether you're a system-on-chip (SoC) designer creating advanced semiconductors, or a software developer writing applications that require the highest security and quality, Synopsys has the solutions needed to deliver innovative, high-quality, secure products. Learn more at www.synopsys.com.