Ren-Song Tsay is a professor and veteran entrepreneur best known as the inventor of the industry-standard zero-skew clock tree method and the lead designer of the first commercially successful performance-optimization physical design system now part of Synopsys. After earning a Ph.D. in EECS from UC Berkeley, he spent early research years at IBM T.J. Watson before co-founding ArcSys/Avanti and Axis Systems, where he delivered breakthrough logic verification and reconfigurable-compute solutions that influenced Cadence-era products. He combines deep chip-level design automation expertise with practical startup experience—founder, technologist, consultant and investor—bridging research and commercial productization. Now teaching High-Tech Entrepreneurship and System-Level Design at National Tsing-Hua University in Taiwan, he mentors the next generation while remaining active in industry advising. Colleagues know him as “Dr. Zero-Skew,” noted for integrity, insight and a knack for turning academic innovations into market-leading tools.
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Ren-song Tsay - Professor at National Tsing Hua University