Taiwanese foundry TSMC believes a former executive has leaked company secrets to Intel and is testing the matter in court.

The exec is Wei-Jen Lo who, according to a TSMC regulatory filing , joined the company in 2004, rose to become a senior vice-president in 2014. In 2024 he took a job in the company’s Corporate Strategy Development team that saw him required to provide counsel to chairman and CEO Dr. C.C. Wei.

TSMC’s filing alleges that in that role Lo met with R&D staff, despite the job not involving oversight of their teams, and sought information about “the advanced technologies currently, and planned to be, under development by TSMC.”

Lo retired from TSMC last July, and in his exit interview said he planned to join an academic institution. TSMC says the exit interview also saw it

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