You probably know that the global semiconductor market is a hotbed of emerging technology and commercial innovation. It’s becoming a frontline for national security more and more.

As artificial intelligence booms and the demand for advanced microchips skyrockets, governments and multi-billion-dollar corporations are tightening the hatches to protect their proprietary data.

A landmark ruling from Taiwan’s Intellectual Property and Commercial Court serves as a stark reminder of just how high the stakes have become. In late April 2026, the court handed down a  10-year prison sentence to a former engineer caught stealing trade secrets from Taiwan Semiconductor Manufacturing Co. (TSMC), the world’s leading manufacturer of advanced AI chips.

The severe penalties in this case reveal a growing global trend: the legal system is increasingly viewing intellectual property theft not just as a corporate dispute, but as a direct threat to national economic security.

The Case: Inside Connections and Competitive Bids

At the center of the dispute was Chen Li-ming, an engineer who previously worked at TSMC before taking a position at the Taiwanese subsidiary of Japanese chip-equipment giant Tokyo Electron. According to court findings, Chen used his lingering relationships with former TSMC colleagues to systematically access, photograph, copy, and collect sensitive chip-manufacturing technology.

Chen’s defense claimed his primary motivation was merely to “improve his personal work performance.” However, the court found that the proprietary materials were passed along to help Tokyo Electron sharpen and improve its commercial bids as a supplier to TSMC.

While internal and judicial investigations found no evidence that the stolen trade secrets were leaked to outside foreign entities or that Tokyo Electron orchestrated the theft on an organizational level, the legal fallout was severe. 

Stiff Sentences and Millions in Fines

The court sent an unmistakable message to the tech sector by utilizing Taiwan’s National Security Act and other stringent intellectual property statutes. The penalties included:

• A 10-year prison sentence for Chen Li-ming, marking one of the heaviest sentences ever handed down for industrial espionage on the island.
• Prison terms ranging from two to six years for three other former TSMC employees who assisted in the breach.
• A 10-month suspended sentence for another former Tokyo Electron worker.
• A massive financial penalty of NT$150 million (approximately $4.8 million USD) levied against Tokyo Electron’s Taiwan unit, along with an order to pay NT$100 million directly to TSMC.

While the judge noted that Tokyo Electron attempted to mitigate the damage once the breach came to light, he stressed that the Japanese supplier could and should have done much more to actively monitor its employees and protect client data. Following the verdict, TSMC reaffirmed its strict stance, stating that it “maintains a zero-tolerance policy toward any actions that compromise the protection of trade secrets” and will pursue violators to the full extent of the law.

Why This Matters for All Tech and Manufacturing Businesses

While this case unfolded in Asia, the legal undercurrents apply directly to technology, manufacturing, and supply-chain businesses worldwide. Companies can take several key lessons from this high-profile ruling.

The Risk of the “Trusted Insider”. Trade secret theft rarely involves outside hackers breaking through a firewall. More often, it involves current or former employees leveraging their internal access or personal relationships to walk out the door with proprietary data.

Supplier Liability is Real. Even if corporate leadership does not authorize or know about the theft, a company can still face multi-million-dollar fines and severe reputational damage if its employees use stolen competitor data to improve the company’s products or bids.

National Security is Transforming IP Enforcement. From the Protecting American Intellectual Property Act in the U.S. to Taiwan’s National Security Act, lawmakers worldwide are elevating intellectual property protection to a matter of state security. This means civil lawsuits are no longer the only threat; criminal indictments and lengthy prison sentences are actively on the table.

Protecting Your Intellectual Assets

Whether you are a global tech supplier or a scaling business with unique manufacturing processes, your trade secrets are often your most valuable assets. Protecting them requires clear, enforceable non-disclosure agreements (NDAs), robust internal data-monitoring systems, and strict off-boarding protocols when employees exit your company.

If you need guidance on implementing trade secret protections, drafting employment agreements, or navigating an intellectual property dispute, schedule a consultation to discuss how we can help.