Chinese semiconductor industry
- Thread starter Hendrik_2000
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@tokenanalyst yup with SMIC and Huawei concentrating on 3D stacking chiplet, the most optimistic timeline IF TSMC is still having problem with its 3nm program, a parity performance wise by late 2023 IF both Huawei and SMIC are able to produce a 7nm 3D chiplet Vis a vis TSMC 5nm Chip.
Recently, CETC Materials has successfully developed 8-inch silicon carbide crystals and realized the small batch production of 8-inch N-type silicon carbide polished substrates, further narrowing the technological gap at home and abroad, and providing independent guarantees for my country's silicon carbide business and laying a solid foundation for independent innovation and development.
@tokenanalyst bro just asking are you JSCh from PDF. 
No, just saw this post there.@tokenanalyst bro just asking are you JSCh from PDF.
They can but typically for higher nm processes you can typically save cost with specialized wider projection area machines, or use 2nd hand refurbish machines. You only use brand new cutting edge machines for processes that you need them for.
If you wanted to make 5nm, 65nm and 130nm chips would it not be cheaper to buy the asml 2050i and use for all of these rather than buying 3 machines?
coolieno99
Junior Member
He is most likely a jealous indian.
no, absolutely not. the cost difference is gigantic. let's look at dry (1470k) vs immersion lithography (2050i).
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Dry lithography is typically more productive as well. 1470k 2050i produces
This is easy to understand: the immersion system adds a new complication: the water handling..
It requires expensive mechanisms to account for all these complications, you have to change to totally different photoresists, etc. It isn't easy and is very costly.
Dry lithography is far far far simpler than immersion because you don't have to worry about any of this which is reflected in the cost and the productivity.
Then you have older machines. This isn't a quote but typically you can get old dry ArF machines for ~5-10 million even with 100% brand new OEM parts. You can literally be producing profit on month 1 after install for a dry process while for immersion you're still not making money for years.
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