TMSC's Arizona fab is up and running producing 4nm chips

There's ~a dozen in the works or under construction

TMSC plans to have 2-3nm fabs operational in the next 2-3 years

So we're 2-3 years behind the standard (currently 2nm), and further behind on the bleeding edge sub-2nm fabs

Don't forget Intel. They are producing chips on 18A right now, with 14A up next.

> TMSC's Arizona fab is up and running producing 4nm chips

Are the majority of the staff still shipped in from Asia?

No. It was originally 50%, unclear what the current numbers are (it was supposed to decrease over time as they train local replacements).

TSMC is already producing at their first one in Arizona (N4 process), second one comes online for N3 in 2028, and third one (N2) broke ground in April 2025 (online date 2029-30)

https://www.tsmc.com/static/abouttsmcaz/index.htm

The projects seem to go well and then union bosses threaten to shut the whole thing down.

Then the essential skilled personnel can’t come train people because the visa process was created by and is operated by the equivalent of four year olds with learning disabilities. Sometimes companies say fuck it we’re doing it anyway and then ice raids their facility and shuts it down.

I’d post the news articles about th above, but your googling thumbs work as well as mine.