Comment by hajile

I believe the most modern TSMC fabs outside of Taiwan are in Arizona. They are just moving to 4nm which is nearly 5 years old and just a revision of 5nm which is getting close to 7 years old.

TSMC aims to have N3 in Arizona by 2028 at the earliest which is 6 years after it first released. By that time, TSMC will have released N3X, N2, N2P, N2X, A16, and A14.

TSMC is heavily sponsored by the Taiwanese government and was created with the express purpose of making Taiwan so valuable that the West would be forced to defend them against China. Moving newer processes out of the country is against their national interests and they've made it clear that there's no plan to do that.