The Taiwan Semiconductor Manufacturing Co. is officially producing advanced manufacturing chips in Phoenix, the company confirmed on an overnight earnings call. Why it matters: According to U.S. Commerce Secretary Gina Raimondo,

TSMC's Arizona Fab 21 began 4nm chip mass production in Q4 2024. Costs are higher than in Taiwan; 2nm production starts in 2025, with 3nm expansion ongoing.

Tim Culpan, a well-connected industry insider, has revealed that Fab 21 is already producing at least three major chip designs as part of its initial installed capacity.