TSMC gearing up for 3nm capacity expansion, 2nm fab construction Monica Chen, Tainan; Jessie Shen, DIGITIMES Asia Friday 30 December 2022 TSMC chairman Mark Liu (center) at a ceremony marking the start of 3nm production. Credit: DIGITIMES In southern Taiwan, TSMC is constructing phase-8 facilities at Fab 18 for additional 3nm capacity, while in the northern and central regions of the country, 2nm fabs are being prepared in six phases, according to the pure-play foundry.