Comment by r3012

There are variants of STM32 that are 90nm. A 90nm foundry was just announced. Not sure if they’re planning on making STM32s, probably not, but there are non-leading edge foundries being run and more are being made.

Here is an announcement from this month

https://www.eetimes.com/skywater-to-build-1-8-billion-fab-in...