It's across the board. Makers of small scale microcontroller projects/kits (whose chips typically use 28nm and larger process nodes) are reporting problems get

It's across the board. Makers of small scale microcontroller projects/kits (whose chips typically use 28nm and larger process nodes) are reporting problems getting parts. Apparently some of the parts the autos need are >100nm. I suspect that this problem started with the Huwai sanctions causing lots of Chinese companies to start panic buying inventory not knowing of they're going to be the next hit with sanctions. Add to that the demand shifts caused by the pandemic. Then throw in other companies realizing how vulnerable they are (and therefore trying to add to their own inventories) and some speculators and it makes for a real mess.