US chip production really needs its SpaceX moment, but it seems like it will never happen, and we're left with the crumbling empire of Intel. By "SpaceX moment", I mean a startup entering an impossible market, where the barrier to entry is billions of dollars of research and manufacturing, a market dominated by industry giants from the 60s, and yet still coming out on top somehow.
Here’s one of them: https://multibeamcorp.com/
I remember touring a little research fab, maybe around 2000, that could achieve feature sizes comparable to what TSMC can do today. But they were very, very, very slow.
(Fast-moving electrons are easy to make, easy to aim, and have teeny tiny wavelengths that entirely sidestep most the issues that people have with photons having obnoxiously large wavelengths. But electrons have all manner of downsides that explain why fabs spend many billions of dollars on optical lithography, one of which is that they repel each other, which makes shining a lot of them at a wafer at once quite problematic.)