Taiwan Semiconductor Manufacturing Company (TSMC) on Tuesday, November 25, 2025, filed a lawsuit against former Senior Vice President Wei-Jen Lo over the alleged transfer of Trade Secrets to Intel. He joined Intel in October 2025 after retiring from TSMC in July 2025.

Wei-Jen previously served as Director of Technology Development and Plant Manager in Santa Clara (1997-2000) at Intel before joining TSMC in 2004 as Vice President of Operations II. From 2006 to 2009, he served as Vice President of Research and Development, where he led core R&D teams. From 2009 to 2013, he was Vice President of Advanced Technology Business, overseeing advanced node program. By early 2024, he became Senior Vice President of Research and Development, and in March 2024, he was promoted to Senior Vice President of Corperate Strategy Development.

TSMC stated that Wei-Jen signed non-disclosure and non-compete agreements during his employment.