Management Team

  • Morris S. Young Ph.D.

    Chief Executive Officer
    Dr. Morris S. Young is the founder and Chief Executive Office of AXT. Dr. Young co-founded AXT in 1986 and has served in various roles including President, CEO, CTO and Chairman of the Board. Prior to founding AXT, Dr. Young served as a physicist at Lawrence Livermore National Laboratory, and as a member of the technical staff at AT&T Bell Labs. Dr. Young holds a Bachelor of Science degree in Metallurgical Engineering from Chengkung University, Taiwan, a Master of Science degree in Metallurgy from Syracuse University and a Ph.D. in Metallurgy from Polytechnic Institute of New York University.
    • Gary Fischer

      Vice President and Chief Financial Officer
      Gary Fischer joined AXT as Vice President and Chief Financial Officer in August 2014 with responsibility for AXT's global finance and accounting organization. He is a Silicon Valley veteran, with extensive experience working in Asia and Europe. In 1993, Mr. Fischer joined ISSI, a leader in advanced memory solutions, as Chief Financial Officer. He took the company public in 1995 and later became its president and Chief Operating Officer. In 2005, he joined eRide, a fabless semiconductor company that develops both GPS devices and software for location-based services. The company was acquired in 2009. Mr. Fischer continued with eRide as a consultant into 2014 and expanded his consulting practice to assist a number of growth companies on a variety of finance and M&A projects. He holds a Master degree in Business Administration from Santa Clara University and a Bachelor of Arts degree from the University of California at Santa Barbara.
      • Vincent Liu (“Wensen”)

        General Manager and Vice President, AXT China
        Mr. Liu joined AXT in March 1993 and has held various positions with increasing responsibility. He began as a manufacturing engineer and subsequently has served as an AXT manager, director, vice president and general manager. Mr. Liu was responsible for the establishment of AXT’s China company, Beijing Tongmei Crystal Technology Co., Ltd. (“Tongmei”) in Beijing, when AXT moved its manufacturing process to China. He is credited with ramping volume production of gallium arsenide substrate wafers for AXT in China, beginning in 2000, and has been responsible for the management of Tongmei since its inception. As General Manager for AXT in China, Mr. Liu was responsible for site selection, development, and the successful relocation of gallium arsenide for AXT. He is also responsible for government relations and as General Manager for AXT in China he continues to oversee AXT’s operations at each site.
        Mr. Liu has a degree in Electronic Engineering from Beijing University in China.
        • Tim Bettles

          Vice President of Business Development, Strategic Sales and Marketing
          Mr. Bettles joined AXT in July 2017 as Vice President of Business Development, Strategic Sales and Marketing, with responsibility for AXT’s commercial activities in North America and strategic commercial partnerships globally. With more than 30 years in the semiconductor industry, Mr. Bettles started his career in research and development with a focus on plasma deposition and etch processes, first at Plessey Research and Technology and then Philips Semiconductors. He then moved into his first commercial role with Trikon Technologies (now SPTS Technologies). In 1998, Mr. Bettles joined IQE and in 2001, he moved from the United Kingdom to the U.S. to develop, grow and manage the North America optoelectronics business for IQE. In 2006, he moved into the III-N space to manage business development, first for Crystal IS and then SETi, where he developed new markets for AlN-based materials and ultraviolet LEDs.
          Educated in the UK, at the University of Wales in Swansea, he holds a Bachelor’s degree with honors in Electronic Materials Engineering.
          • Bruno Lamare, Ph.D.

            Senior Director, European Sales and Marketing
            Dr. Bruno Lamare joined the AXT team in May 2017 as Director of Sales and Marketing for the EMEA region. He is an experienced sales and marketing professional in the compound semiconductor industry with positions at Bio-Rad, Accent Optical Technologies, Rohm & Haas. Prior to AXT, Dr. Lamare was most recently at Dow Chemical, where he was in charge of the metal-organics market in Europe.
            Dr. Lamare holds a Ph.D. in Material Sciences from University Pierre et Marie Curie in Paris, France.
            • Zhi-Fan Zhang, Ph.D.

              Vice President of Business Development, Strategic Sales and Marketing
              Dr. Zhang joined AXT in 2013 as Vice President of Business Development, Strategic Sales and Marketing with responsibility for AXT’s commercial activities in Asia and strategic commercial partnerships globally. Prior to joining AXT, Dr. Zhang was Senior Business Development Manager at Veeco Instruments Inc., an innovative manufacturer of semiconductor process equipment from 2010 to 2013. Before joining Veeco Instruments, Dr. Zhang held various engineering and marketing positions with increasing responsibility at Novellus Systems (acquired by Lam Research), Applied Materials and Michelin North America R&D Corp.
              Dr. Zhang holds an Master of Science degree in Material Science and Engineering from the University of Washington, Seattle and a Ph.D. in Material Science & Engineering from the University of Michigan, Ann Arbor.
              • Wei Gao, Ph.D.

                Chief Technical Officer
                Dr. Wei Gao joined AXT in May 2019 as Chief Technical Officer. He is an experienced technology professional and executive officer. He has broad knowledge and experience in the III-V photonics industry, focusing on R&D, product development and manufacturing. Prior to AXT he was Vice President of High Power Lasers at InPhenix, Inc. In 2000, Dr. Gao founded Axcel Photonics with $10M in venture capital funding and served as Axcel’s President and CEO, as well as its CTO. He oversaw the construction of the cleanroom and the acquisition of all necessary equipment, including the MOCVD reactor and the fabrication lines for both GaAs and InP products. Under his leadership, Axcel developed a unique technology to produce world-class, high-power diode lasers. In 2010, Axcel was successfully acquired. Previously to Axcel, Dr. Gao held senior-level positions as Vice President of Raydex Technology, Vice President of Precision Digital Corporation, Application Engineer at Nortel Networks in the Optoelectronics Division and Senior Engineer at Lasertron.
                Dr. Gao is a former faculty member of Beijing University in the Physics Department. He earned his Ph.D. in Electrical Engineering in 1995 from University of Delaware, Newark, DE.
                • Wei Zhang, Ph.D.

                  Sr. Director Product Applications and Quality Assurance
                  Dr. Zhang joined AXT in 2017 as Senior Director of Product Applications and Quality Assurance. He provides technical support to our customers and works with customers to ensure common understanding of the detailed product specifications. Dr. Zhang also assists customers in product and site qualifications. Dr. Zhang is also the program manager for AXT’s patents and intellectual property and is frequently tapped as the project manager for special projects, market research and other programs. From 2008 to 2017, Dr. Zhang was at Veeco Instruments, an innovative manufacturer of semiconductor process equipment, first as Senior Scientist and subsequently as Technology Manager of the AsP Group. From 2006 to 2008, Dr. Zhang was an Assistant Research Professor at Northwestern University.
                  Dr. Zhang earned his Ph.D. in Electric & Electronic Engineering from Northwestern University.
                  • Liming Zhu, Ph.D.

                    Vice President of Technical Support
                    Dr. Zhu joined AXT in March 2001 as a Project Manager in R&D and Process Engineering. He has had several positions in his career with AXT, including Project Manager, R&D, Process Engineering, QA Director, Vice President of Quality, Vice President of Asia Pacific Sales and Vice President of Asia Pacific Technical Support. He first joined AXT at our Fremont, CA location, and in 2007 moved to Beijing. Prior to joining AXT, Dr. Zhu performed post-doctoral research at Lund University in Sweden and was a research fellow at Dusseldorf University in Germany. Dr. Zhu assists in many technical reviews with customers and AXT management, and is widely known for his responsiveness to our customers.
                    Dr. Zhu earned a Ph.D. in Chemical Engineering from Nanjing Science & Technology University, China, in 1990.