There’s high drama when it comes to a man called Lo.
Taiwan Semiconductor Manufacturing (TSMC) has filed a lawsuit in Taiwan’s Intellectual Property and Commercial Court against former Senior Vice President Wei-Jen Lo, who left the company earlier this year and has since joined Intel.
The company said the action stems from provisions in Lo’s employment contract, a non-compete agreement he signed during his tenure, and protections outlined in Taiwan’s Trade Secrets Act. According to TSMC, the concern centers on the possibility that Lo could transfer sensitive technical knowledge to his new employer.
“There is a high probability that Lo uses, leaks, discloses or transfers TSMC’s trade secrets and confidential information to Intel, thus making legal actions necessary,” the company stated.
Intel and Lo have not yet responded to requests for comment.
Government scrutiny and national-security implications
According to the report, Taiwan’s economy ministry said it respects TSMC’s legal action and is monitoring the case closely. Officials added they will cooperate as needed to determine whether the matter involves unauthorized transfer of core technologies or potentially violates Taiwan’s National Security Act.
Authorities began reviewing Lo’s case last week following local media reports alleging that he may have taken advanced process-technology data with him when he left TSMC.
The investigation reflects rising concerns in Taiwan about the protection of semiconductor expertise—knowledge considered essential not only to commercial competitiveness but also to national security. Taiwan’s chip sector, with TSMC at its center, underpins major global tech supply chains and is widely seen as a strategic asset.
Lo’s industry influence
Lo played a crucial role in scaling TSMC’s most advanced technologies, helping drive mass production of the company’s 5-nanometer, 3-nanometer, and emerging 2-nanometer chips—processes fundamental to next-generation AI accelerators, smartphones, and data-center hardware.
He retired from TSMC earlier this year after a 21-year career before joining Intel in October. A source familiar with the situation said Lo currently reports directly to Intel CEO Lip-Bu Tan, signaling that he has been positioned for high-impact strategic work.
Prior to joining TSMC in 2004, Lo spent 18 years at Intel, including roles in technology development and as a factory manager overseeing Intel’s Santa Clara development site. His return to Intel has amplified questions about whether his deep knowledge of TSMC’s most advanced production methods could influence Intel’s ongoing push to regain technological leadership.
Intel moves to calm concerns
Intel CEO Lip-Bu Tan told Bloomberg that such claims are “rumor and speculation,” adding that Intel “respects intellectual property.” His remarks came at a San Jose event that honored senior TSMC leaders C.C. Wei and Mark Liu, underscoring the awkward timing and heightened visibility of the issue.
The semiconductor industry has reacted cautiously, with investors watching closely due to the potential consequences for global chip supply chains and the intensifying competition between the world’s two most advanced chipmakers.
TSMC, now valued above $1.15 trillion, has opened an internal review alongside the government’s probe. A person familiar with the company’s investigation said TSMC has not yet concluded whether any harm occurred, underscoring that the concern is still largely precautionary—but serious.
A broader backdrop of rivalry
The Intel–TSMC dynamic has long been complicated. While the two companies collaborate in certain areas, they are fundamentally locked in a race to lead the most sophisticated manufacturing processes. Former Intel CEO Pat Gelsinger frequently warned that the US was overly reliant on TSMC for cutting-edge chips, reflecting concerns in Washington about supply-chain resilience and industrial security.
Intel, meanwhile, is trying to re-establish itself as a world-class foundry at a time when TSMC remains the unquestioned leader in advanced manufacturing. Any suggestion—even unproven—that key technology knowledge could shift between the companies heightens geopolitical and financial sensitivities.
In September, the US pulled a key export waiver that once allowed TSMC to ship chipmaking gear to its Nanjing plant without delay.