pull down to refresh

Both China and the US have the resources to meet or exceeded this technology if they really tried to, and if they succeeded it'd be protected by national security laws for years and we wouldn't know about it until it was obsolete.
It looks like the US or Chinese gov cannot compete. The industry invests over $100 billion just on R&D every year. It went from a military project to a mass consumer product. Eventually the military became a small piece of the market. It's not easy to compete when you're far ahead and constantly innovating.
TSMC have factories in both the US and China, but all the most advanced chip making is done in Taiwan. The Taiwanese gov has backed them from the start and is probably the only reason China hasn't taken them yet.