Chinese semiconductor industry

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latenlazy

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TK3600

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tphuang said:
View attachment 105804

Well you said it. Loongsong believes that its product has to use its own IP and ISA. More importantly, it only uses domestic process for its chip production. Does not rely on using TSMC/Samsung's more advanced process to raise performance of server CPUs like T-Head.
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What is the significance of indigenous instruction sets?
 
tphuang

tphuang

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TK3600 said:
What is the significance of indigenous instruction sets?
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There is no possible sanctions, no restrictions on how you can use it, no restrictions on core IP and things like that. ARM will continue to make improvements to its ISA and architecture. Its up to ARM what you can and cannot use. clearly, they've put restrictions on Chinese chip designers recently. And for x86 designs, Hygon is basically stuck making little improvements to Zen 1 architecture.
 
PopularScience

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european_guy said:
This clarifies the little mistery of how is ICRD doing 55nm if they have only a SSA800. Now it is even more confirmed the SSA800 version with 90nm resolution can be used for critical layers for nodes up to 65nm, not 55nm, as @hvpc correctly stated.

Regarding this 28nm machine at IRCD, we have two options:

1. IRCD is using the real one with immersion included

2. IRCD is using the 28nm machine but without immersion, This is possible because the optical system of the 28nm machine has 0.93NA dry instead of 0.75NA for the SSA800. So it can be used to process 55nm nodes even if immersion is not present.

I'd would bet on the number 2, because according to havoc, the full 28nm machine with immersion included is still at prototype stage at SMEE's.
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Immersion. July will be mass produced.
 
olalavn

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european_guy said:
This clarifies the little mistery of how is ICRD doing 55nm if they have only a SSA800. Now it is even more confirmed the SSA800 version with 90nm resolution can be used for critical layers for nodes up to 65nm, not 55nm, as @hvpc correctly stated.

Regarding this 28nm machine at IRCD, we have two options:

1. IRCD is using the real one with immersion included

2. IRCD is using the 28nm machine but without immersion, This is possible because the optical system of the 28nm machine has 0.93NA dry instead of 0.75NA for the SSA800. So it can be used to process 55nm nodes even if immersion is not present.

I'd would bet on the number 2, because according to havoc, the full 28nm machine with immersion included is still at prototype stage at SMEE's.
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SMEE's DUV immerson is done... they made it public in October...
Fkjv-3vUUAAmKJf.jpeg
 
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