NextFin News - A Taiwanese court has sentenced a former Tokyo Electron Ltd. employee to 10 years in prison for the theft of trade secrets from Taiwan Semiconductor Manufacturing Co. (TSMC), marking one of the most severe penalties ever handed down under the island’s recently tightened National Security Act. The ruling, delivered in Taipei, concludes a high-stakes investigation into the leakage of proprietary data related to TSMC’s 2-nanometer and 14-nanometer fabrication processes, technologies that form the bedrock of the global high-end chip supply chain.
The defendant, identified in court documents as Chen Li-ming, was a former TSMC engineer who later joined Tokyo Electron’s Taiwan subsidiary. According to the Taiwan High Prosecutors Office, Chen utilized his access to copy "national core key technologies" with the intent of benefiting external parties. The 10-year sentence aligns with the maximum penalty sought by prosecutors, who argued that the breach posed a direct threat to Taiwan’s industrial competitiveness and national security. Tokyo Electron Taiwan was also fined NT$120 million for failing to exercise adequate supervision over its staff, though the Japanese parent company has maintained that it had no organizational involvement in the theft.
This verdict serves as a definitive signal from the administration of U.S. President Trump and its allies in Taipei that the "silicon shield" will be defended with unprecedented legal force. Since 2022, Taiwan has overhauled its legal framework to treat semiconductor espionage as a national security offense rather than a simple commercial dispute. The severity of Chen’s sentence reflects this shift. While previous intellectual property cases often resulted in suspended sentences or modest fines, the judiciary is now treating the unauthorized transfer of 2nm process data—the next frontier in AI computing—as an act of economic sabotage.
The case highlights a growing vulnerability in the semiconductor ecosystem: the "revolving door" between chipmakers and equipment manufacturers. Tokyo Electron, as a primary supplier of etching and coating machines, requires deep integration with TSMC’s production lines. This proximity creates a structural risk that is difficult to mitigate through traditional NDAs. Analysts at TrendForce have noted that as the industry moves toward sub-3nm nodes, the "recipe" for manufacturing becomes as valuable as the hardware itself. The leak of 14nm and 2nm secrets potentially allows competitors to bypass years of costly R&D, a shortcut that Taipei is determined to block.
However, some industry observers caution that aggressive prosecution could have unintended consequences for the talent market. Lin Chien-fu, an economist and former head of the Taiwan Institute of Economic Research, has previously suggested that while strict laws are necessary, an overly litigious environment might deter global experts from working in Taiwan’s tech sector for fear of accidental legal entanglement. This perspective remains a minority view among policymakers who prioritize security, but it underscores the delicate balance between protecting IP and maintaining the fluid exchange of technical expertise required for innovation.
The financial impact on Tokyo Electron appears contained, as the fine represents a fraction of its annual revenue, yet the reputational damage is more difficult to quantify. The company has since implemented more rigorous background checks and data silo protocols. For TSMC, the legal victory reinforces its dominance by making the cost of betrayal prohibitively high. As the global race for semiconductor supremacy intensifies, the courtroom in Taipei has established a new benchmark for the price of a secret.
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