Industrial Technology Research Institute
After he left General Instrument Corporation, Sun Yun-suan recruited him to become chairman and president of the Industrial Technology Research Institute in Taiwan. As head of a government-sponsored non-profit, he was in charge of promoting industrial and technological development in Taiwan. Chang founded TSMC in 1987, the beginning of the period where firms increasingly saw value in outsourcing their manufacturing capabilities to Asia. Soon, TSMC became one of the world's most profitable chip makers. Chang left ITRI in 1994 and became chairman of Vanguard International Semiconductor Corporation from 1994 to 2003 while continuing to serve as chairman of TSMC. In 2005, he handed TSMC's CEO position to Rick Tsai.