Chinese 7nm is on regular ultra violet 193nm lithography, anything lower needs ASML or clone and it's 13.5nm lithography. ASML and it's suppliers were working o

Chinese 7nm is on regular ultra violet 193nm lithography, anything lower needs ASML or clone and it's 13.5nm lithography. ASML and it's suppliers were working on 13.5nm lithography for 20 years.