SummaryCompaniesShenzhen team completed a working prototype of a EUV machine in early 2025, sources sayThe lithography machine, built by former ASML engineers, fills a factory floor, sources sayChina's EUV machine is undergoing testing, and has not produced working chips, sources sayGovernment is targeting 2028 for working chips, but sources say 2030 is more likelySINGAPORE Dec 17 - In a high-security Shenzhen laboratory, Chinese scientists have built what Washington has spent years trying to pr...