Chips can be totally different in usage. They have kinds of 1) civil; 2) industrial, 3) aerospace and 4) space, etc. 2000 a Chinese woman Gao Zhan sold some 386 chips to China and she said it's 386 chips worth nothing, no any high-tech value, but the 386 chips were sold $800/piece which is more than a 386 computer in US. But the 386 chips are aerospace and space level and China can not make them and need them in space industry. So the 386 is restricted products and not allowed to export (to China, etc.) so she went to jail. So China probably can not make 100 nm high-level space chips used in aerospace and space, even lots of people think it's simple and China can make them.