Mr. Vincent Tai is our co-founder and has been chairman of our board of directors and our chief executive officer since our inception in 2004. Mr. Tai has over 25 years of experience in the high-tech industry. From 2001 to 2003, Mr. Tai co-founded and managed USI Inc., which developed linear power amplifiers in Silicon Valley. Prior to co-founding USI Inc., he worked as the general manager and then the president of UMAX Technologies in the United States from 1990 to 2001. Prior to that, Mr. Tai co-founded Excel Associates, a distribution company based in Hong Kong, in 1986. Mr. Tai received a bachelor of science degree in electrical engineering and a master of science degree in electrical engineering from Georgia Institute of Technology and an MBA degree from the University of Chicago in the United States.

Mr. Shuran Wei is our co-founder and has been our chief technology officer since our inception in 2004 and our director since 2005. Mr. Wei has almost two decades of experience in CMOS radio-frequency integrated circuit design. Prior to co-founding our company, he was a vice president of Analogix Semiconductor Inc. in the United States from 2002 to 2004. From 1998 to 2002, he was an integrated circuit design manager at Marvell Semiconductor Inc. in the United States, and from 1994 to 1998, he was an integrated circuit design engineer at LSI Corporation (formerly known as LSI Logic). Mr. Wei received a bachelor of science degree in physics from Peking University in China and a master of science degree in electrical engineering from the University of Minnesota in the United States.

Mr. Shun Lam Steven Tang has been our director since 2011 and was our senior vice president of operations from 2010 to 2012. Prior to joining our company, Mr. Tang served as the non-executive chairman for Linefan Technology Holding Limited, a Hong Kong listed company, from 2008 to 2009. Mr. Tang was the president, Asia Pacific for Viasystems Group, Inc., a company listed on the New York Stock Exchange, from 1999 to 2007. From 2003 to 2005, Mr. Tang was also an independent director and the chairman of the Finance and Audit Committee of Wanji Pharmaceutical Holdings Limited, a Hong Kong listed company. He was managing director for Pace Inc. between 1995 to 1999. He received a bachelor of science degree in electrical and electronics engineering from Nottingham University in England and an MBA in economic forecasting from Bradford University in England.

Mr. Julian Cheng has been our director since our inception in 2004. Mr. Cheng is a managing director in the China group at Warburg Pincus Asia LLC, which he joined in 2000 and where he focuses on technology, media and education companies in China and other parts of Asia. Mr. Cheng is currently a director of Xueda Education Group, a company listed on the New York Stock Exchange. He is also a director of 58.com Inc. and Beijing Tianyu Communication Equipment Co., Ltd. Prior to joining Warburg Pincus Asia LLC, Mr. Cheng worked for the capital markets and investment banking divisions of Salomon Smith Barney and Deutsche Bank in Hong Kong. Mr. Cheng received his bachelor's degree in economics from Harvard University in the United States.

Mr. Gordon Yi Ding has been our director since 2010. Mr. Ding is an executive director in the China group at Warburg Pincus Asia LLC, which he joined in 2009 and where he focuses on technology, media and education companies in China. From 2008 to 2009, Mr. Ding was a vice president at Citadel Investment Group. From 2005 to 2008, he worked for the investment banking divisions of Morgan Stanley Asia Limited and UBS Investment Bank in Hong Kong. Mr. Ding received a bachelor of science degree from Shanghai Jiao Tong University in China and an MBA degree from the Kellogg School of Management at Northwestern University in the United States.

Mr. Allen Kam-sing Ma has served as our independent director since 2012. Mr. Ma is currently an independent non-executive member of the Board of Directors of SUNeVision Holdings, Ltd, a Hong Kong GEM-listed company. Prior to his retirement in 2009, he served as the president of Asia Pacific at British Telecom plc from 2005 to 2009 and previously vice president, Asia, of the Network Infrastructure Division of Motorola, Inc. from 2001 to 2005. In addition, Mr. Ma served multiple roles at Hong Kong Telecommunications Limited and its subsidiaries, including executive director and chief executive officer respectively, from 1993 to 2000. Mr. Ma holds a master's degree in business administration from the University of Toronto. He is a fellow member of the Chartered Institute of Management Accountants, United Kingdom, and the Association of Chartered Certified Accountants, United Kingdom. He is also a member of the Certified Management Accountants, Canada.

Mr. Fusen Chen has served as our independent director since 2012. Mr. Chen has over 25 years of experience in the semiconductor and information technology industries. In 2013, Mr. Chen became the president and chief executive officer and a member of the board of Mattson Technology Inc., a company listed on NASDAQ. From 2004 to 2012, he served as executive vice president of semiconductor system products at Novellus Systems as well as executive vice president, chief technology officer and senior vice president of Asia Pacific operations. From 1994 to 2004, Mr. Chen held executive positions at NASDAQ-listed Applied Materials, including group vice president and general manager of the copper physical vapor deposition and interconnect product business group, general manager of the physical vapor deposition division and director of technology of the physical vapor deposition division. Prior to Applied Materials, Mr. Chen served as R&D manager at LSI Corporation, a company listed on the New York Stock Exchange, from 1992 to 1994. Mr. Chen has also served on the board of directors at GT Advanced Technologies and Electroglas. He holds a doctorate in material science & engineering from the State University of New York at Stony Brook and a bachelor of science in engineering from National Tsing Hua University in Taiwan.

Mr. Peter Wan has served as our independent director 2010. Mr. Wan is a Hong Kong Certified Public Accountant and a former partner of PricewaterhouseCoopers, Hong Kong and China firm. He is a fellow of the Hong Kong Institute of Certified Public Accountants, the UK Association of Chartered Certified Accountants and the Hong Kong Institute of Directors. Mr. Wan is currently an independent director and chairman of the audit committee of Mindray Medical International Limited, a company listed on the New York Stock Exchange. Mr. Wan is also an independent non-executive director and chairman or member of the audit committee of China Resources Land Limited, Fairwood Holding Limited, Huaneng Renewables Corporation Limited, Greater China Professional Services Limited, KFM Kingdom Holdings Limited and Dalian Port Company Limited, all listed on the Hong Kong Stock Exchange. He also serves as a director and/or committee member of several unlisted companies as well as a number of non-government organizations and voluntary agencies in Hong Kong. Mr. Wan received the higher diploma in accountancy from Hong Kong Polytechnic in 1975.