Board of Directors

Irwin Federman General Partner, U.S. Venture Partners

Irwin Federman joined USVP in 1990 as a general partner with significant investment experience: as CEO of Monolithic Memories, he led his firm's investments in successful startups such as Cypress Semiconductor, Xilinx and Altera. During his tenure as CEO from 1978 to 1987, Irwin spearheaded MMI's turnaround from virtual bankruptcy to a $250 million revenue organization. When MMI merged with Advanced Micro Devices, Irwin assumed the post of Vice Chairman of AMD.

As former Chairman of the Semiconductor Industry Association and board member of the National Venture Capital Association, Irwin draws on the breadth of his experience to help entrepreneurs consider their options: "Ultimately every decision is made by the management team," says Irwin. "It is rewarding when I can share experience that helps them sort out their alternatives."

Irwin was a founding or lead investor in Blue Martini, CheckPoint Software Technologies, Centillium Communications, Crescendo Communications, MMC Networks, NeoMagic, Netro, Nuance Communications, Quick Logic, SanDisk and TelCom Semiconductor. He has led USVP's investments in BeVocal, On24 and Mellanox, among many others.

Irwin received a B.S. in Economics from Brooklyn College and was awarded an Honorary Doctorate of Engineering Science from Santa Clara University. A recipient of the Anti-Defamation League's Torch of Liberty, Irwin is involved with a number of community organizations in San Francisco and on the Peninsula. Irwin and his wife enjoy ballet and opera and support the San Francisco Museum of Modern Art.

Tae Hea Nahm General Partner, Storm Ventures

Tae Hea Nahm is a founding general partner of Storm Ventures focusing on mobile and SaaS. His current mobile investments include: AirPlug, Averail, Com2uS, MobileIron, Modo Labs and Silego; and prior, AireSpace/founding CEO (Cisco), Berkana/co-Chairman (Qualcomm), MCubeWorks (CoreLogic) and JetCell (Cisco). He hired the founders for AireSpace, MobileIron and Averail. His current SaaS investments include: Cloudwords and Marketo – and Averail, MobileIron and Modo; and prior, Access360 (IBM), EchoSign (Adobe) and OSA Technologies (Avocent). He was previously a partner at Venture Law Group and Wilson Sonsini Goodrich & Rosati, and holds an AB in Applied Math from Harvard College and a JD from University of Chicago Law School.


James McElwee formerly of  Weston Presidio

James McElwee currently operates as an independent venture capitalist in Northern California with more than 30 years of experience in institutional venture capital and private equity.

Mr. McElwee joined Weston Presidio as its third General Partner in 1992 serving until 2010. He was reponsible for Weston Presidio's private investments in Digital Theater Systems (NASDAQ: DTSI), RedEnvelope (NASDAQ: REDE), Vitria Technology (NASDAQ: VITR), Wild Oats Markets (NASDAQ: OATS), IC Works (acquired by Cypress Semiconductor), and Sassaby (Jane) (acquired by Estee Lauder). Mr. McElwee opened the firm's Menlo Park Office in 2000.

Prior to Weston Presidio, Mr. McElwee was Senior Vice President of the Security Pacific Venture Capital Group and the founding Managing Director of its Menlo Park office. During his 13 years with the Security Pacific Venture Capital Group, Mr. McElwee was responsible for early investments in Costco, Universal Health Services, Cypress Semiconductor, Aspect Telecommunications, Xilinx, MIPS Computer Systems, Harmonic, Microchip, Vitesse and many others. Prior to entering the venture capital industry in 1979, Mr. McElwee was a Senior Consultant with Accenture working on a variety of clients in the retailing, healthcare and technology industries.

In addition to Silego, Mr. McElwee currently serves on the Board of Directors of Avinger, a medical device company headquartered in Redwood City. He also serves on the Board of Trustees of SFJAZZ, the non-profit organization responsible for the San Francisco Jazz Festival.

Mr. McElwee earned his B.A. from Claremont McKenna College where he serves on the Board of Trustees and is Chairman of the Financial Economics Institute. He earned his MBA from the Wharton Graduate School of Business where he serves on the Wharton Entrepreneurial Advisory Board.


Ilbok Lee, Ph.D Executive Chairman, Silego Technology

Dr. Ilbok Lee has served as President and Chief Executive Officer and Director of Silego since its inception. From April 1999 to September 2001 he was Senior Vice President and General Manager of the Timing Technology Division at Cypress Semiconductor after Cypress Acquired IC Works. From May 1992 to March 1999 he was President and Chief Executive Officer and Director of IC Works, a company which he Co-founded. From 1989 to May 1992, he was President and Director of Samsung Semiconductor, Inc., a company which he co-founded in 1983. Prior to Samsung, Dr. Lee served in various technical and managerial positions at Intel and National Semiconductor.

Dr. Lee has previously served as a Director of ESS Technology, V3 Semiconductor, and Sierra Monolithics. Dr. Lee holds a B.S.E.E. from Seoul National University, and an M.S.E.E, and Ph.D. from the University of Minnesota. Dr. Lee is the recipient of several patents and awards.


John Teegen CEO, Silego Technology

Mr. Teegen joined Silego in September 2010 and has more than 25 years management experience in high technology markets including computing, communications, and consumer digital entertainment.  Most recently, he served as Vice President Global Sales at Kovio Inc., a privately held manufacturer of printed silicon electronics. Previously, he cofounded SNR Technologies Group, LLC (a privately held consulting and investment company) and he held executive management positions at NeoPhotonics (NPTN), MMC Networks (AMCC), Intellon (QCOM), and VLSI Technology (NXP).  John began his career in 1982 with Advanced Micro Devices (AMD).

He is a founding member of Emergent Growth Fund I, a member of the Board of Trustees at the Whitney Laboratory of Marine Bioscience, and a member of the Engineering Advisory Council for the University of Florida’s College of Engineering.  Mr. Teegen completed his Bachelor of Science in Electrical Engineering at the University of Florida in 1982.


Chen Wang COO, Silego Technology

Chen Wang has served as Senior Vice President of Operations and Engineering and Director of Silego since its inception. From April 1999 to September 2001 he was Vice President of Operations and Engineering of the Timing Technology Division at Cypress Semiconductor after Cypress Acquired IC Works. From May 1992 to March 1999 he was Senior Vice President of Operations and Engineering and Director of IC Works, a company which he Co-founded. Prior to founding IC Works, Mr. Wang was Vice President of Engineering at Samsung Semiconductor, Inc. where he led the group that developed memory products, clocks and certain other semiconductor products. Mr. Wang holds an M.S.E.E. from San Jose State University.