No, I am not, although 200-300 µm is not a commonplace. Smaller processes result in chips either becoming very unstable or plainly kicking the bucket when expo

No, I am not, although 200-300 µm is not a commonplace. Smaller processes result in chips either becoming very unstable or plainly kicking the bucket when exposed to strong electromagnetic fields and electromagnetic radiation. Radar equipment generates such strong EM radiation that is lethal to humans and to microelectronics no matter how well shielded the chips are. Then there are highly charged particles released during a nuclear explosion, so the electronics have to survive at least for some time at the battlefield. Chips produced for defence and military use some of the most conservative design and manufacturing processes, and even the analogue processes may still be used somewhere (I have not checked recently though).