Taiwan Semiconductor Manufacturing Company Limited is a Taiwanese multinational semiconductor contract manufacturing and design company. It is the world's second-most valuable semiconductor company, the world's largest dedicated independent ("pure-play") semiconductor foundry, and its country's largest company, with headquarters and main operations located in the Hsinchu Science Park in Hsinchu, Taiwan. Its majority is owned by foreign investors, and the central government of Taiwan is the largest shareholder. In 2023, the company was ranked 44th in the Forbes Global 2000.

In the microelectronics industry, a semiconductor fabrication plant is a factory for semiconductor device fabrication.