Full Breakdown
Taiwan Court Sentences Ex-Tokyo Electron Employees and Fines Unit Over TSMC Trade Secrets Theft
4/27/2026, 10:51:16 AM
Sentencing in Taiwan's High-Profile Trade Secrets Case
A New Taipei district court handed down jail terms to five defendants and imposed a US$5 million fine on the Taiwan unit of Japan’s Tokyo Electron. The rulings stem from an alleged theft of sensitive computer-chip technology belonging to Taiwan Semiconductor Manufacturing Co. (TSMC), prosecuted under Taiwan’s National Security Act.
Background: TSMC, Tokyo Electron, and Taiwan's Core Technology Landscape
TSMC is the world’s largest contract manufacturer of advanced AI chips, a sector identified as vital to Taiwan’s economy and security. Tokyo Electron, a Japanese supplier of semiconductor-manufacturing equipment, sought to secure additional orders from TSMC. In August 2025 prosecutors charged former TSMC employee Chen Li-ming and several co-defendants with unlawfully obtaining TSMC trade secrets to benefit Tokyo Electron.
Key Individuals and Organizations
- Chen Li-ming – former employee of both TSMC and Tokyo Electron, sentenced to 10 years.
- Three former TSMC employees – received prison terms ranging from 2 to 6 years.
- Former Tokyo Electron employee – given a 10-month sentence, suspended for three years.
- Tokyo Electron Taiwan unit – fined US$5 million.
- TSMC – the victim company whose trade secrets were at issue.
Chronology of the Investigation and Trial
- August 2025 – Indictments filed against Chen Li-ming and co-defendants.
- Late 2025 – Early 2026 – Court hearings conducted in New Taipei.
- 27 April 2026 – Verdict delivered, sentencing and fine imposed.
Sentencing Details and Financial Penalties
- Chen Li-ming: 10 years imprisonment.
- Three former TSMC staff: prison terms of 2 to 6 years each.
- Former Tokyo Electron staff: 10-month sentence, suspended for three years.
- Tokyo Electron Taiwan unit: US$5 million fine.
Implications for Taiwan's Semiconductor Industry and National Security
The case highlights the strategic importance of protecting trade secrets within Taiwan’s semiconductor sector, which is explicitly linked to national security. Applying the National Security Act signals a robust legal stance against intellectual-property violations that could erode Taiwan’s competitive advantage in AI-chip production and affect foreign-supplier relationships.
Official Reactions
- The New Taipei district court issued the ruling and fine.
- Both Tokyo Electron and TSMC did not immediately respond to requests for comment.
Conflicting Reports & Gaps
No alternative accounts of the sentencing were presented in the available sources. The absence of statements from the involved corporations leaves their perspectives undocumented.
Future Legal and Industry Developments
The verdict may set precedent for stricter enforcement of trade-secret protections and could influence Tokyo Electron’s future dealings with Taiwanese manufacturers. Observers anticipate continued monitoring of related litigation and potential regulatory adjustments affecting the broader semiconductor supply chain.
