TSMC has taken a major legal step to protect its technology, announcing on November 25, 2025, that it filed a lawsuit against former senior vice president Wei-Jen Lo in Taiwan’s Intellectual Property and Commercial Court.
According to TSMC, the case centers on allegations that Lo breached multiple commitments tied to his former role at the semiconductor giant. The company claims he violated the terms of his employment contract, broke a non-compete agreement, and failed to uphold obligations under Taiwan’s Trade Secrets Act. In other words, TSMC is asserting that sensitive proprietary information and business protections were not properly respected after his departure.
The lawsuit highlights how fiercely competitive the semiconductor industry has become, where advanced manufacturing know-how, process development, and internal operational strategies can represent years of research and billions in investment. For a company like TSMC—widely seen as one of the most influential chipmakers in the world—trade secrets are not just internal documents; they’re the foundation of customer trust and long-term market advantage.
By bringing the dispute to Taiwan’s specialized Intellectual Property and Commercial Court, TSMC is signaling that it intends to pursue the matter through the legal channels best suited for complex commercial and technology-related claims. The case also draws attention to the increasing scrutiny around executive departures, non-compete clauses, and the handling of confidential information in high-stakes tech sectors.
As the lawsuit moves forward, it could serve as another reminder across the chip industry that employment agreements, non-compete restrictions, and trade secret protections carry serious legal weight—especially when the alleged misconduct involves senior leadership and highly sensitive technology.
