Stephen D. Kelley is President and Chief Executive Officer of Advanced Energy Industries and a member of its Board of Directors, both since March 2021. He brings more than 30 years of senior management experience in the global semiconductor and electronics industry, with broad expertise in strategic planning, business development, technology, manufacturing, and operations.
Mr. Kelley served as President and CEO and a board member of Amkor Technology, Inc., a leading semiconductor package and test company, from May 2013 to June 2020. Prior to joining Amkor, he served as Senior Advisor to Advanced Technology Investment Company, the Abu Dhabi-sponsored investment company that owns GlobalFoundries, until December 2012. He served as Executive Vice President and Chief Operating Officer of Cree, Inc. (now Wolfspeed, Inc.) from 2008 to 2011.
Previously, Mr. Kelley held executive leadership roles across various businesses at companies including Texas Instruments, Philips Semiconductors, National Semiconductor, and Motorola. Since January 2023, he has served on the board of directors of ONTO Innovation Inc., a leader in process control for the semiconductor and related industries. Mr. Kelley holds an SB in Chemical Engineering from the Massachusetts Institute of Technology and a JD from Santa Clara University.