Mike F. Chang Ph.D. Chairman of the Board and Chief Executive Officer
Mike F. Chang, Ph.D., is the founder of our company and has served as our Chairman of the Board and Chief Executive Officer since the incorporation of our company. Dr. Chang has extensive experience in both technology development and business operations in the power semiconductor industry. Prior to establishing our company, Dr. Chang served as the Executive Vice President at Siliconix incorporated, a subsidiary of Vishay Intertechnology Inc., a semiconductor company, or Siliconix, from 1998 to 2000. Dr. Chang also held various other positions at Siliconix from December 1987 to 1998. Earlier in his career, Dr. Chang held various positions at General Electric Company from 1974 to 1987. Dr. Chang received his B.S. in electrical engineering from National Cheng Kung University, Taiwan, and M.S. and Ph.D. in electrical engineering from the University of Missouri.
Yueh-Se Ho Ph.D. Chief Operating Officer and Director
Yueh-Se Ho, Ph.D., is a co-founder of our company and has served as our Chief Operating Officer since January 2006 and our director since March 2006. Dr. Ho has held various operations management positions in our company since our inception, including the Vice President of Worldwide Operations from 2003 to 2006 and the Vice President of Back End Operations from 2000 to 2003. Prior to co-founding our company, Dr. Ho served as the Director of Packaging Development and Foundry Transfer at Siliconix from 1998 to 2000. Dr. Ho received his B.S. in chemistry from Tamkang University and Ph.D. in chemistry from the University of Pittsburgh.
Mary L. Dotz Chief Financial Officer & Corporate Secretary
Mary L. Dotz was appointed Chief Financial Officer & Corporate Secretary of Alpha and Omega Semiconductor in March 2012. Prior to joining our company, Ms. Dotz served as the Chief Financial Officer at various public and private companies, including Adaptec, Inc. from 2008 to 2011 and Beceem Communications, Inc. from 2005 to 2008. She also held various executive positions in finance at NVIDIA from 2000 to 2005 including Vice President Finance, Corporate Controller and Interim CFO. Ms. Dotz earned her B. S. in business from San Diego State University and her MBA from the University of Southern California.
Hamza Yilmaz Ph.D. Chief Technology Officer
Hamza Yilmaz, Ph.D., has served as our Chief Technology Officer since December 2011. Dr. Yilmaz joined our company in January 2008 as Executive Vice President of Marketing. Prior to joining our company, Dr. Yilmaz was the Senior Vice President of Semiconductor Technology and Product Development and Operations at Volterra Semiconductor, Inc. from 2007 to 2008. Dr. Yilmaz was the Senior Vice President of Product and Technology Development at Fairchild Semiconductor Corporation from 2004 to 2007. He served as the Vice President of Technology Development at GEM Services, a semiconductor assembly and testing company, from 2002 to 2004, and he also held various executive positions at Siliconix from 1988 to 2001, including Executive Vice President of Power Product Line. Dr. Yilmaz received his B.S. in electrical engineering from Yildiz Teknik University in Istanbul, Turkey, M.S. in electrical engineering from the University of Texas at Austin, and Ph.D. in electrical engineering from the University of Michigan.
Yifan Liang Chief Accounting Officer
Yifan Liang has served as our Chief Accounting Officer since October 2006. Mr. Liang joined our company in August 2004 as our Corporate Controller. Prior to joining us, Mr. Liang worked with PricewaterhouseCoopers LLP, or PwC, from 1995 to 2004 in various positions, including Audit Manager in PwC's San Jose office. Mr. Liang received his B.S. in management information system from the People's University of China and M.A. in finance and accounting from the University of Alabama.
Tony Grizelj Vice President of Sales
Tony Grizelj has served as our Vice President of Sales since March 2011, after having served as our Vice President of Marketing since April 2006. Prior to joining our company in November 2004, Mr. Grizelj served as the Senior Product Marketing Manager at Micrel Semiconductor, Inc., a semiconductor company, from 2000 to 2004. He also held various marketing positions at Siliconix from 1993 to 2000, including regional marketing based in Japan and marketing development for the MOSFET product line. Mr. Grizelj received his B.S. in electrical engineering from San Jose State University.