From copper to CoWoS: Douglas Yu retires from TSMC

Dr. Chen-Hua Douglas Yu, Vice President of Pathfinding for System Integration and the sole TSMC Distinguished Fellow, officially retired on July 8, 2025, closing a chapter in one of the most illustrious engineering legacies in Taiwan’s semiconductor history. Revered as the “Final Knight” among TSMC’s famed “Six Knights of R&D,” Yu’s pioneering contributions were instrumental in propelling TSMC to its global leadership in semiconductor manufacturing.

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