Nanya Technology’s security team spotted something odd: wireless signals broadcasting from inside restricted office areas. The trail led to a senior engineer accused of filming the company’s DRAM process documents with a 360-degree camera hidden in a snack bag.
Yeh Yen-wei of the Advanced Process Development Division has been indicted in Taiwan on trade secret charges. He joined Nanya in 2022, began talks with Chinese recruiters in 2025 and resigned in mid-February 2026, with his departure planned for mid-April.
Prosecutors allege he copied 32 files on Nanya’s DRAM manufacturing process and used an Insta360 X4 Air camera to photograph internal research documents, visiting restricted areas on weekends and late at night. The camera’s Bluetooth and Wi-Fi remained on, tipping off the company’s IT systems.
Nanya reported the case to authorities, and Yeh now faces charges under the Trade Secrets Act and the Criminal Code. His alleged plan was to pass the secrets to his next employer in mainland China for higher pay.
The case is the latest flashpoint in Taiwan’s battle to protect chip know-how, weeks after authorities raided 64 sites over suspected Chinese talent poaching.
