Dr. T.S. Chang is TSMC's Senior Vice President of Operations/Advanced Technology and Mask Engineering and a TSMC Senior Fellow, promoted to Senior Vice President in February 2026. Recognized as a TSMC Fellow since February 2013 and a TSMC Senior Fellow since June 2025, he joined the company in 1995 and holds a Ph.D. in electrical engineering from National Tsing Hua University.