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Samsung is expected to more than double output of its HBM4 and HBM4E DRAM

562 points · 458 comments · giuliomagnifico

  1. fooker · · focus · HN ↗
    What's the main blocker (other than the current inflated cost) for using HBM instead of DRAM as the primary memory for consumer electronics?
    1. bob1029 · · focus · HN ↗
      It's not that there's a blocker. It's that it takes roughly 3x the manufacturing capacity to produce an HBM package at the same storage capacity as DRAM. We are sacrificing total bytes for bandwidth.
      1. tliltocatl · · focus · HN ↗
        How so? FEOL is pretty much the same, BEOL is almost the same save TSVs, the packaging tech is different and more advanced, but not exactly 1:1 comparable. Do TSVs really occupy 3x the area of DDR IO's?
        1. monster_truck · · focus · HN ↗
          3x is a reasonable figure. They are not literally that large, though.
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