The square footage of Taiwan Semiconductor (TSMC) facilities is huge. TSMC is known to be one of the largest semiconductor manufacturers in the world and operates multiple manufacturing facilities in Taiwan. TSMC's headquarters and main operations are located in the Hsinchu Science Park in Hsinchu, Taiwan. The company has been a key player in the semiconductor industry and is the world's largest dedicated independent semiconductor foundry. TSMC's manufacturing facilities are known for their advanced technology and high production capacity. It is worth noting that TSMC is currently building a new plant for the production of 3 nanometer chips. This new plant is reported to measure 160,000 square meters, which is equivalent to approximately 22 football fields in size. Please note that the information provided is based on the available search results and may not include the most recent updates or specific details about the square footage of TSMC's facilities.