Taipei, Nov. 26 -- Taiwan Semiconductor Manufacturing Co. (TSMC) sued its former senior executive Lo Wei-jen on Tuesday, accusing him of violating work rules and sharing trade secrets with US chipmaker Intel, according to a report by Focus Taiwan.

The company said it moved to court after finding signs that Lo may have passed on sensitive information to a US-based competitor company, Intel Corp., soon after retiring from the world's largest contract chipmaker.

TSMC filed the lawsuit at the Intellectual Property and Commercial Court, saying Lo broke the Trade Secrets Act, as well as confidentiality and noncompete agreements he had signed while working at the company. The firm noted that his actions created a serious risk because the infor...