You need to calm down. They're making lithography machines, not potato chips. It's going to take some time. Of what we can glean, the advances made in 3 years has been impressive.
28nm immersion faced hurdles due to COVID and some technical problems. it happens you know
the biggest accomplishment SMEE did is to produce machine with domestic components.
all critical components/parts , special material steel frame , fretting frame , ceramic parts , connecting wires , microcrystals are domestically produced.
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i was reading some of old massages on Engine thread. 2010-2015 time period was really interesting. most of the members on this forum were really frustrated with Shenyang Liming engine institute and even questioned on their technical ability to produce a good turbofan engine.
Shenyang faced a lot criticism.
look at now. i don't think so i need to tell what they have accomplished. LOL
today annual revenue of Liming hit staggering 22 Billion RMB.
now the same story repeating with SMEE. indeed they were lazy at the beginning and wasn't serious. but now situation is totally changed. telling you just give few more years to SMEE. entire game will be different after 2025.