Chinese semiconductor industry

Oldschool said:

Too early to tell, a more clear picture in 2024. Majority of other domestic equipments and chemicals still at 28nm as most advanced level currently.

Every critical area have to advance at same pace.

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SleepyStudent said:

Ah okay
2021/2022: 28nm
2024: 14nm
2024: 28nm to scale
2025: 14nm to scale
2030s: 7nm and EUV come to scale?

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SleepyStudent said:

Ah okay
2021/2022: 28nm
2024: 14nm
2024: 28nm to scale
2025: 14nm to scale
2030s: 7nm and EUV come to scale?

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SleepyStudent said:

@foofy @WTAN Any estimates on when 28nm and 14nm should be able to be produced reliably to scale?

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Oldschool said:

Why don't you check the Huawei 45nm first. It's based on 60nm dual stage dry duv.

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Oldschool said:

Both TSMC and Samsung are not using multipatterned DUV for 7nm currently. both use EUV for 7nm. TSMC used it at first version but not currently.

To do it efficient economically , EUV is needed for 7nm

2025 EUV may appear.
2030 EUV wide usage is a reasonable estimate.

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SleepyStudent said:

TSMC N7 was discontinued?

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Oldschool said:

It's not used anymore. It's too many layers affecting the yield .

Multipatterned 7nm duv is not an efficient way to go.

Samsung doesn't even bother with it.

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SleepyStudent said:

???

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