Board of Directors

Mr. Seraphin is President & Chief Executive Officer. With over 30 years of experience managing global businesses, Mr. Seraphin brings the overall vision and leadership necessary to drive future growth for the company. Prior to this role, from October 2015 to June 2018, Mr. Seraphin was the senior vice president and general manager of the Memory and Interface Division, leading the development of the company’s innovative memory architectures and high-speed serial link solutions. From October 2013 to June 2014, Mr. Seraphin also served as the vice president of Worldwide Sales and Operations where he oversaw sales, business development, customer support and operations across the various business units within Rambus. In June 2014, Mr. Seraphin was promoted to senior vice president of Worldwide Sales and Operations. Mr. Seraphin started his career in 1985 as a field application engineer at NEC and later joined AT&T Bell Labs, which became Lucent Technologies and Agere Systems (now Broadcom Inc.). During his 18 years at Agere, Mr. Seraphin held several senior positions in sales, marketing and general management, culminating in his last position as executive vice president and general manager of the Wireless Business Unit. Following this, Mr. Seraphin held the position of general manager of a GPS startup company in Switzerland and was vice president of Worldwide Sales and Support at Sequans Communications. During his career, Mr. Seraphin has advised and supported companies in both the product and IP markets. Mr. Seraphin holds a bachelor’s degree in Mathematics and Physics and a master’s degree in Electrical Engineering from Ecole Superieure de Chimie, Physique, Electronique, based in Lyon, France where he majored in Computer Architecture. Mr. Seraphin also holds an M.B.A from the University of Hartford and has completed the senior executive program of Columbia University. In September 2021, Mr. Seraphin attended the Directors Consortium, a course offered at Stanford Graduate School of Business Executive Education Program.

Ms. Higashi has served as a director since May 2017. Ms. Higashi currently serves as the chair of our Corporate Governance/Nominating Committee and member of our Corporate Development Committee. Ms. Higashi is a founder of Tohmon Capital Partners, LLC (formerly Tomon Partners, LLC), a strategy and M&A advisory firm based in San Francisco and primarily serving companies in technology and healthcare-related fields since 2003. Ms. Higashi also serves on the boards of One Equity Partners Open Water I Corp (OEPW.U), where she also serves on the Audit Committee, as Chair of the Compensation Committee and Nomination Committee; Takeda Pharmaceutical Company Ltd. (TSE/NYSE), where she also serves on the Compensation Committee and Audit Supervisory Committee; and KLA Inc. (Nasdaq), where she also serves on the Compensation Committee. Ms. Higashi also served as a director on the board of InvenSense, Inc. until May 2017. Prior to Tohmon Capital Partners, she was a co-founder and Chief Executive Officer of Gilo Ventures, a technology-focused venture capital firm, from 2000 to 2002. Before that, Ms. Higashi spent 15 years in investment banking. After beginning her investment banking career at Lehman Brothers from 1985 to 1988, Ms. Higashi was a founding member of Wasserstein Perella & Co. and the head of that firm’s technology M&A business from 1988 to 1994, and subsequently served as a managing director in charge of Merrill Lynch’s global technology M&A practice from 1994 until 2000. Prior to her investment banking career, Ms. Higashi spent two years as a consultant at McKinsey & Co. in Tokyo, Japan. She has also served on a number of other public and private boards. Ms. Higashi holds a B.A. from International Christian University in Tokyo, and an M.B.A. from Harvard Business School.

Mr. Kissner has served as a director since July 2012. Mr. Kissner also currently serves as Chair of our Board of Directors, chair of our Cyber Risk Committee, and as a member of our Audit Committee and Corporate Governance/Nominating Committee. Mr. Kissner currently serves as chief executive officer of Digital Pillars, a private information systems company. From April 2013 to September 2017, Mr. Kissner served as Chairman of the Board of ShoreTel Inc., a business communications systems company acquired by Mitel Networks Corporation. He joined ShoreTel as a director in April 2006, where he also served on the Nominating and Governance Committee, Audit Committee and Compensation Committee. From January 2007 to February 2015, he was Chairman of Aviat Networks and from June 2010 to July 2011, Mr. Kissner was Chairman and CEO. From 2010 to 2015, he served on the board of Meru Networks, a technology leader in the enterprise wireless systems market, where he also served on the Audit Committee and Compensation Committee. From 1995 to 2006, he served as Chairman and CEO of Stratex Networks, a global provider of wireless transmission solutions. Mr. Kissner previously was Vice President and General Manager of M/A-COM, Inc., a manufacturer of radio and microwave communications products, President and CEO of Aristacom International, a communications software company, Executive Vice President of Fujitsu Network Switching, Inc., and held a number of executive positions at AT&T. He has also served on a number of other public and private boards, as well as not-for-profit boards such as the NPR Foundation and Angel Flight, Inc and KQED Public Media. Mr. Kissner holds a Bachelor of Science degree from California State Polytechnic University and a Master of Business Administration degree from Santa Clara University.

Mr. Laub has served as a director since April 2022. He currently serves as a member of our Audit Committee, Corporate Development Committee, and Compensation and Human Resources Committee. He is an accomplished executive with over 25 years of semiconductor industry leadership experience. Prior to serving on the Advisory board at IPV Capital, a semiconductor private equity firm, from 2017 to 2020, Mr. Laub served as president, chief executive officer and member of the board of directors at Atmel Corporation, a leader in microcontroller, automotive and memory solutions, from 2006 until its acquisition in 2016. While at Atmel, he also served as a board member of the Semiconductor Industry Association (SIA) from 2011 to 2016. Prior to Atmel, he served as the Executive Chairman of Teridian Semiconductor, a provider of mixed-signal ICs focused on the energy management and communications markets, from 2005 to 2006. Mr. Laub served as president, chief executive officer and board member of Silicon Image, a leading provider of multimedia connectivity solutions, from 2004 to 2005. He also served in executive management positions including as president, chief operating officer and board member at Lattice Semiconductor Corporation, a leading provider of low power, field-programmable gate arrays, from 1990 to 2003. Prior to his semiconductor career, Mr. Laub was a Vice President and Partner at Bain and Company, a global strategy consulting firm. He has also served on several not-for-profit boards focused on the education sector, and currently is a board member at Heterodox Academy. Mr. Laub holds a Bachelor of Arts in Economics from the University of California, Los Angeles, and a Juris Doctor from the Harvard Law School.

Ms. Rao has served as a director since August 2019. Ms. Rao currently serves as the chair of our Audit Committee, and member of our Cyber Risk Committee. Ms. Rao also serves on the board of Impinj, Inc., a manufacturer of radio-frequency identification devices and software. She has held several senior executive positions, most recently from January 2011 to March 2016 as Chief Financial Officer at Monolithic Power Systems, a leading company in high-performance analog solutions, and as VP Finance from January 2009 to December 2010. Prior to Monolithic Power Systems, Ms. Rao has held various executive roles at leading technology companies, including Integration Associates Inc from 2004 to 2006, Atrica from 2002 to 2003, Raza Foundries from 2000 to 2002, NVIDIA February 1998 to May 1999 and AMD from 1988 to 1998. Ms. Rao holds a master’s degree in business administration from the University of Rochester in New York.

Dr. Sayiner has served as a director since October 2019. Dr. Sayiner currently serves as the chair of our Corporate Development Committee and member of our Compensation and Human Resources Committee. He also serves as a director on the board of Power Integrations, Inc., a semiconductor manufacturing company. He was most recently the executive vice president of Renesas Electronics Corporation from February 2017 to March 2019 and the president of Renesas Electronics America from July 2017 to March 2019. Previously, he was the president, chief executive officer and a director of Intersil Corporation, a leading provider of innovative power management and precision analog solutions, from March 2013 until its acquisition by Renesas Electronics Corporation in February 2017. Prior to Intersil, from September 2005 to April 2012, he served as president and chief executive officer, and director of Silicon Laboratories, a fabless semiconductor company engaged in the design of analog-intensive, mixed signal integrated circuits. Dr. Sayiner served as Chairman of the Semiconductor Industry Association, or SIA, from December 2015 to November 2016 and as Vice Chairman from November 2014 to December 2015. Dr. Sayiner was initially appointed to the Board of the SIA in September 2013. He also serves on the board of directors of Power Integrations. Dr. Sayiner holds a doctoral degree in Electrical Engineering from the University of Pennsylvania, a Master of Science degree in Engineering from Southern Illinois University, along with a Bachelor of Science degree in Electrical and Electronics Engineering and a Bachelor of Science degree in Physics from Bosphorus University in Turkey.

Mr. Stang has served as a director since July 2008 and served as Chairman of the Board from March 2013 to June 2019. Mr. Stang serves as chair of our Compensation and Human Resources Committee and member of our Corporate Governance/Nominating Committee. Mr. Stang currently serves as chairman, president and chief executive officer of Ooma, Inc., a cloud-based communications and connected services public company. He has held the position of Chairman since December 2014 and the positions of president, chief executive officer and director since January 2009. Prior to joining Ooma, Mr. Stang served as a director, chief executive officer and president of Reliant Technologies, Inc., a developer of medical technology solutions for aesthetic applications, from 2006 to 2008. Mr. Stang previously served as chief executive officer and president of Lexar Media, Inc., a provider of solid-state memory products from 2001 to 2006 and chairman from 2004 to 2006. From September 2013 until May 2017, he served on the board of InvenSense, Inc. and from December 2008 to January 2014 he served on the board of Solta Medical. Mr. Stang also serves on the boards of private and nonprofit companies. Mr. Stang holds an A.B. in Economics from Stanford University and M.B.A. from the Harvard Business School.