Were you not paying attention as all the jobs were lost?? Did you not notice the changes?
It used to be that 90% of all semiconductor companies were based in Silicon Valley, hence the same. Driving around the Valley was a near-religious experience as you saw EVERY company name you ever heard of and there was their building.
That no longer exists. And even social media companies are remotely as plentiful today. There's no comparison.
The only hope now is:
* TSMC is building a fab in Phoenix * Samsung is building a fab in one of three areas: Phoenix, Austin or Malta - they haven't decided yet * GF is building another fab in Malta
NONE of this will EVER be in California ever again let alone Silicon Valley, however. It's no longer economically viable there.
We have tons of them. TSMC is just extremely prominent right now because Intel stumbled on their 10nm upgrade and is stuck a generation behind.
https://en.wikipedia.org/wiki/List_of_Intel_manufacturing_si...
Intel foundries are also less prominent because they don't sell capacity to others... AMD, Apple, Samsung, etc., would never have their processors created at an Intel fab. TSMC is neutral.
GlobalFoundries (formerly AMD) balked at the expense of getting 7nm fabrication going only to have to compete (on price) with TSMC and decided to stay at 12 nm (and larger) for a couple years. But sooner or later they will have to move forward, and perhaps find themselves ahead of TSMC for a while.
https://www.bloomberg.com/news/features/2017-06-15/american-...
But just barely, and not state of the art...
Also GloFo has fabs "in the west" https://en.wikipedia.org/wiki/GlobalFoundries#Fabrication_fa...
"EU Signs €145B Declaration to Develop Next Gen Processors and 2nm Technology " https://news.ycombinator.com/item?id=25602950
Because this way the companies can be directed towards a specific desired outcome that benefits society instead of the shareholders.
Even if they need to be dragged there kicking and screaming.
Ask average IT person about big IT companies and nobody says anything about Asia, which is scary as fuck.
And it wasn't long ago US had GF and Intel.
https://en.wikipedia.org/wiki/List_of_Intel_manufacturing_si...
Back in the day I worked at Fab 2 but that's ancient history.
The US just gives away secrets now?