Post by @cheerfulseal@lemmy.ml

2026-11-01 07:13 UTC

CXMT completes engineering sample validation for sixth-generation DRAM technology platform based on 4F² architecture Internationally, South Korea’s Samsung Electronics and SK hynix have been pursuing the 4F² technology. SK hynix unveiled its 4F² road map in 2025, while Samsung planned to mass-produce sub-10-nanometre DRAM based on the new design by 2028, according to a report published by Seoul Economic Daily on October 13. CXMT said it was the first company to complete engineering sample validation of the architecture, and if development continues smoothly, it could become the first company globally to bring 4F²-based products to market.

Replies (2)

@kokesh@lemmy.world 2026-11-01 07:26

Who cares? It will end up in Altman’s shed anyway.

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@nousername@lemmus.org 2026-11-01 23:14

lol. That whole thing was propaganda. First of all, the 4F2 process isn’t better than the 6F2 process. 4F2 is worse! 4F2, just means they’re being forced to build the chip vertically in more steps because they don’t have access to ASMLs most advanced lithography machines. Because they can’t pack more transistors into a smaller space by making them smaller, they’re being forced to build them vertically, which requires more layers. And more layers means more chances for microscopic mistakes. And that’s the case! Their yields are abysmal, only 30% yields, while Samsung and SK Hynix typically get 70% yields. And what do 30% yields mean? It’s means the process isn’t commercially viable. The only reason it even exists is because the Chinese government forces it to. In order to be commercially viable, their prices would have to be much higher than everyone else’s, in which case it’s a huge waste of time. Granted, the Chinese government might flood the world with these chips as a loss leader, but mostly they’re just making them to satisfy the Chinese government’s own need for chips. They probably won’t leave the country in any significant number.

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