Thread

1. HarHarVeryFunny · 1789937583 · focus · HN ↗

   On a related note, I was reading yesterday that apparently the real bottleneck for Chinese production of AI accelerators is HBM production, not processors or ASML equipment.

   The lack of ASML EUV machines certainly hurts, and pushing DUV so hard results in abysmal yields of good chips, but you can compensate by running more wafers or making smaller chips, and the net result is that Huawei's Ascend production volume is limited by CXMT's HBM capacity not processor dies.

   The problem is that HBM manufacture requires many steps (die thinning, via drilling, plating, alignment) where the equipment used by everyone else (Samsung, SK Hynix, Micron) is also blocked by sanctions, so the Chinese are having to develop all of this themselves too, which they have, but yields are currently low, even when using shorter HBM stacks.

   1. jacquesm · 1789951954 · focus · HN ↗

      The only thing the West is achieving here is that sooner or later China will be able to compete on their own terms rather than ours. It may buy some time but the end result is very predictable.

      1. bigcat12345678 · 1789960301 · focus · HN ↗

         As other comments pointed out, that was always China's plan, the value here is really that when the Chinese overlord annillate the world's industrial competition, they'll have the moral high ground of being out of self-reliance and hostility by western monopolists.

         Edit:

         And, that, my fellow keyboard high-minded thinker but powerless corp peons, was also part of the China's plan all along.

         1. FooBarWidget · 1789993021 · focus · HN ↗

            China's plan to be self-sufficient in semiconductors was a failure before western sanctions, because all the Chinese chipmakers found it too easy to buy western chipmaking equipment or to fab through TSCM. No Chinese company wanted to buy from other Chinese companies. Nobody was incentivized to develop self-sufficiency. "Because the government wants it" was not enough incentive.

            Western sanctions have succeeded in achieving China's self-sufficiency goals where their own government failed.

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