In general, DUV can basically only do 25nm, Intel with the dual workbench mode to do 10nm, but it can not reach 10nm. Only EUV can meet the wafer manufacturing below 10nm, and it can also continue to extend to 5nm and 3nm. In fact, the emergence of EUV lithography machines is indeed a key to helping the industry break through the 7nm process.
It was not a legend that Wuhan Hongxin had overturned and had the only EUV lithography machine that could be used to produce 7nm chips in China, but it had not yet been used to pull the bank mortgage loan. This event once caused a sensation in the industry, and has been circulated as a talking point for people after dinner, which shows how critical the 7nm EUV lithography machine is.