Chinese semiconductor industry

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latenlazy

Brigadier
Sorry, but when I look at the evidence I see a rather different picture. There were various kinds of sanctions/limitation on the type of equipment China can acquire since the 90s. China had the incentive to catch up for over 20 years now.

Yet, SMIC was way more competitive with foreign companies 20 years ago than it is today.
China was a much smaller economy in the 1990s. You can't chase tech leads without resources.
 

SilentObserver

Junior Member
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Fyi, somebody here just posted news of IBM recently announcing the first 2nm semiconductor via nanoimprint lithographic technology with 50 billion transistors. Production volumes are probably terrible but the fact they can fab this at the quantum tunneling limit is impressive.

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From that article:
"In IBM’s 2 nm chip, each transistor has three stacked nanosheets with 40 nm width and 5 nm height (5 nm, for reference, is about the same thickness as two strands of DNA). The transistors’ pitch is 44 nm and their gate length is 12 nm.

Note that the name “2 nm” does not relate to any particular size of any feature on the chip; the name of the process node is intended to reflect equivalent performance of a planar transistor with that feature size."

The Xnm size is more of an advertising term than actual feature size. Its meant to imply equivalent performance. They are stacking transistors to increase transistor density.
 

BlackWindMnt

Captain
Registered Member
From that article:
"In IBM’s 2 nm chip, each transistor has three stacked nanosheets with 40 nm width and 5 nm height (5 nm, for reference, is about the same thickness as two strands of DNA). The transistors’ pitch is 44 nm and their gate length is 12 nm.

Note that the name “2 nm” does not relate to any particular size of any feature on the chip; the name of the process node is intended to reflect equivalent performance of a planar transistor with that feature size."

The Xnm size is more of an advertising term than actual feature size. Its meant to imply equivalent performance. They are stacking transistors to increase transistor density.
They should really use a different metric.

Something like 50, 100, 150B to express with this tech it's possible to create 50, 100, 150 billion transistors per 100 mm2.
 

SilentObserver

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They should really use a different metric.

Something like 50, 100, 150B to express with this tech it's possible to create 50, 100, 150 billion transistors per 100 mm2.
I agree. Soon they will be compelled to do so. Even with EUV we will be heading to sub nanometer with this naming convention. Currently the "Xnm" format is easy to understand for the broader market, less nm implies faster processor.
 

Oldschool

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Via vincent Havok posting

Havok: fully domesticated test line is being run right now. 28nm lithography equipment will be delivered to the production line at the end of this year. The production line’s capacity is 20k wafer per month

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20000片/月

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Quote



年底是交付大生产线,不是上验证线。
Google trans
If the prototype can be on the verification line before the end of 2021, verify, debug, and eliminate BUG, it will take 1 year at the earliest for everything to go smoothly, and then the commercial version... At the end of the year, it is the delivery of the large production line, not the verification line.
If read the entire thread of discussion see how people are coming to certain conclusion. Here is general consensus.

2021 is debugging phase and 2022 reaches commercial production phase .

2024 14nm comes in.

By 2025, fully commercialized nation wide scale 28nm established in a more realistic case.


24年量产改进型估计就是14nm。
28nm明年就打通了!

如果样机2021年底以前能够上验证线,验证、调试、消除BUG,一切顺利最快也要1年的时间,然后再把商业版的型号安装到商业产线上最快也是一年,顺风顺水也要到2024年了,但一般不会顺风顺水,所以2025年能建立真正商用的全国产28NM生产线算是最乐观的预计了。
 
D

Deleted member 15949

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If read the entire thread of discussion see how people are coming to certain conclusion. Here is general consensus.

2021 is debugging phase and 2022 reaches commercial production phase .

2024 14nm comes in.

By 2025, fully commercialized nation wide scale 28nm established in a more realistic case.


24年量产改进型估计就是14nm。
28nm明年就打通了!

如果样机2021年底以前能够上验证线,验证、调试、消除BUG,一切顺利最快也要1年的时间,然后再把商业版的型号安装到商业产线上最快也是一年,顺风顺水也要到2024年了,但一般不会顺风顺水,所以2025年能建立真正商用的全国产28NM生产线算是最乐观的预计了。
Any guesstimates of multipatterning to 7nm and EUV will come in?
 

Oldschool

Junior Member
Registered Member
Any guesstimates of multipatterning to 7nm and EUV will come in?
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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