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Fujitsu launches made-in-Japan next-generation CPU FUJITSU-MONAKA

633 points · 254 comments · my123

  1. alightsoul · · focus · HN ↗
    Fun fact, Fujitsu used to run their own fabs in Japan until they were sold to UMC and now they're another UMC fab although they are stuck at like the 20nm node. So this is likely made at JASM.
    1. iicc · · focus · HN ↗
      I think they'd say if the CPU was fabbed in Japan, instead there's some very "careful" wording:

      >next-generation CPU, FUJITSU-MONAKA [1], designed and developed in Japan

      >Fujitsu MONAKA Server, powered by the FUJITSU-MONAKA CPU, enhances sovereign capabilities through domestic manufacturing,

      1. kennywinker · · focus · HN ↗
        Right below the headline it says:

        > Achieving world-class AI inference performance through Japan-developed 2nm 3D-stacked CPU and server integrated, developed, and manufactured in Japan

        Sounds pretty clear to me

        1. TheRealPomax · · focus · HN ↗
          Indeed, it is extremely clear: by not saying "manufactured in Japan", the words "developed in Japan" tell you that they drew up the designs for the CPU in Japan, and then sent those designs off to a fab outside Japan for actual manufacturing. Then they bring those CPUs back to Japan, so that the server can be manufactured in Japan even if the server components are not.

          That manufacturing step may change in the future, but right now that CPU is not "Made in Japan", it's only "Designed in Japan".

          1. adrian_b · · focus · HN ↗
            They did a presentation at Hot Chips, with all these details.

            The core die is made with TSMC-N2P, while the SRAM die and the peripheral die are made with TSMC-N5.

            Their CPU is designed in Japan, like the AMD CPUs or the Intel CPUs are designed in USA (the latest Panther Lake Intel CPUs have returned for fabrication to USA in 2026, but they also cost double than the corresponding Arrow Lake models made at TSMC in 2025, and their GPUs are still made at TSMC).

            1. osnium123 · · focus · HN ↗
              When will they be using Rapidus?
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