For more than four decades, Fenwick & West LLP has helped some of the world’s most recognized companies become, and remain, market leaders. From emerging enterprises to large public corporations, our clients are leaders in the technology, life sciences and cleantech sectors and are fundamentally changing the world through rapid innovation.  MORE >

Fenwick & West was founded in 1972 in the heart of Silicon Valley—before “Silicon Valley” existed—by four visionary lawyers who left a top-tier New York law firm to pursue their shared belief that technology would revolutionize the business world and to pioneer the legal work for those technological innovations. In order to be most effective, they decided they needed to move to a location close to primary research and technology development. These four attorneys opened their first office in downtown Palo Alto, and Fenwick became one of the first technology law firms in the world.  MORE >

From our founding in 1972, Fenwick has been committed to promoting diversity and inclusion both within our firm and throughout the legal profession. For almost four decades, the firm has actively promoted an open and inclusive work environment and committed significant resources towards improving our diversity efforts at every level.  MORE >

FLEX by Fenwick is the only service created by an AmLaw 100 firm that provides flexible and cost-effective solutions for interim in-house legal needs to high-growth companies.  MORE >

Fenwick & West handles significant cross-border legal and business issues for a wide range of technology and life sciences who operate internationally..  MORE >

At Fenwick, we are proud of our commitment to the community and to our culture of making a difference in the lives of individuals and organizations in the communities where we live and work. We recognize that providing legal services is not only an essential part of our professional responsibility, but also an excellent opportunity for our attorneys to gain valuable practical experience, learn new areas of the law and contribute to the community.  MORE >

Year after year, Fenwick & West is honored for excellence in the legal profession. Many of our attorneys are recognized as leaders in their respective fields, and our Corporate, Tax, Litigation and Intellectual Property Practice Groups consistently receive top national and international rankings, including:

  • Named Technology Group of the Year by Law360
  • Ranked #1 in the Americas for number of technology deals in 2015 by Mergermarket
  • Nearly 20 percent of Fenwick partners are ranked by Chambers
  • Consistently ranked among the top 10 law firms in the U.S. for diversity
  • Recognized as having top mentoring and pro bono programs by Euromoney


We take sustainability very seriously at Fenwick. Like many of our clients, we are adopting policies that reduce consumption and waste, and improve efficiency. By using technologies developed by a number of our cleantech clients, we are at the forefront of implementing sustainable policies and practices that minimize environmental impact. In fact, Fenwick has earned recognition in several areas as one of the top US law firms for implementing sustainable business practices.  MORE >

At Fenwick, we have a passion for excellence and innovation that mirrors our client base. Our firm is making revolutionary changes to the practice of law through substantial investments in proprietary technology tools and processes—allowing us to deliver best-in-class legal services more effectively.   MORE >

Mountain View Office
Silicon Valley Center
801 California Street
Mountain View, CA 94041

San Francisco Office
555 California Street
12th Floor
San Francisco, CA 94104

Seattle Office
1191 Second Avenue
10th Floor
Seattle, WA 98101

New York Office
1211 Avenue of the Americas
32nd Floor
New York, NY 10036

Shanghai Office
Unit 908, 9/F, Kerry Parkside Office
No. 1155 Fang Dian Road
Pudong New Area, Shanghai 201204
P.R. China
+86 21 8017 1200


About Our Semiconductors Practice

For almost forty years, Fenwick & West has been a trusted business advisor to some of Silicon Valley’s most successful semiconductor companies. Our semiconductor clients now span the globe, and include market leaders and emerging innovators in all sectors of the semiconductor industry from EDA developers to fabless chip makers and test equipment producers.

Fenwick’s collaborative approach to serving our semiconductor clients includes attorneys, patent agents, engineers and staff scientists who have a deep understanding of the current business, legal and technical issues facing the semiconductor industry. The group’s primary services include:

Intellectual Property—We help our clients build powerful, highly valuable portfolios and protect and enforce semiconductor IP rights globally, including patents, trademarks, copyrights and licenses; our sophisticated IP counseling also supports the firm’s litigation and M&A groups.

Litigation—Our IP litigation practice has an excellent track record of resolving semiconductor industry disputes, including “bet-the-company” litigation.

Mergers & Acquisitions—Our integrated M&A deal teams tackle complex corporate, intellectual property, antitrust, benefits and tax issues specific to the semiconductor industry.

Licensing—We have extensive experience negotiating development agreements, OEM agreements, distribution agreements, manufacturing agreements, foundry supply agreements and strategic partnering agreements.

Securities—We work with analysts and regulators who cover the semiconductor industry, and have expertise in complex and creative financing transactions, including IPOs, convertible debt, high-yield debt, PIPES and shelf offerings.

Tax—We are recognized as one of the top cross-border tax practices in the United States, in both transactions and tax litigation.

Why Semiconductor Companies Choose Fenwick

Deep semiconductor industry intelligence

Many of our attorneys have backgrounds in computer science, electrical engineering and IC-related disciplines that enable us to provide semiconductor companies with practical and sound representation. This combined legal and technical expertise means we will provide you with advice that is efficient, relevant and in consideration of your unique business environment.

Deep involvement with the EDA industry

We have represented many leading EDA start ups including ECAD, SDA, Cooper & Chyan, PiE Design, Silicon Perspective, Novas, Denali, Jasper, Aprio, Berkeley Design, Tiburon Design and Virtio, have represented many EDA legends (Paul Huang, Glen Antle, Ping Chao, Prabhu Goel) in multiple start ups, and have represented publicly-traded EDA companies such as Cadence and Synopsys in numerous securities offerings, acquisitions and other EDA-related transactions.

Access to our extensive network of investors

Our firm has strong connections to top-tier venture capital firms seeking to invest in semiconductor-related start-up companies. We offer a systemized approach to connecting our clients with the appropriate investors based on stage of development, technology and amount/stage of investment.

A strategic partner to help you protect your intellectual property at every stage of development

Fenwick has been working with rapidly growing semiconductor companies at the forefront of innovation for more than four decades. We work diligently to build valuable portfolios and to enforce and defend all of your intellectual property rights.

An unwavering commitment to service

At Fenwick, we pride ourselves on delivering best-in-class legal services in a highly efficient and effective manner to companies of all sizes. Continually ranked as one of the top U.S. law firms for client service, we have numerous mechanisms for receiving and acting on client feedback to improve client service. Whether you are an industry leader or an emerging company, you deserve—and will receive—the same attention to detail, efficiency, cost-containment and personal attention for which we have become known.