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Comment by coredog64

16 hours ago

Apple bought PA Semi as the starting point to getting off of Intel. Theoretically, memory seems like something Apple could figure out how to fab. And it's not like they don't have any capital reserves.

They bought P.A. Semi, but it was for their design capability; they never had fabs anyway, and Apple still depends on TSMC and others for manufacturing chips. Apple building fabs to ensure a guaranteed supply of memory (or logic) chips would be an unprecedented level of vertical integration, even for them.

  • No RAM, no profits. Apple has vertically integrated in the past for less reason than this.

    Moreover it's a massive economy of scale, while their consumer electronics competitors are busy fighting a losing battle against the server market for chips, Apple can undercut them, grow their market share and get even more service revenue.

    • RAM prices surging in the AI hype era does not mean they'll stay there for decades (see xAI already letting one data center go), and it would take a long time for Apple to become competitive.

      Should they also start CPU fabs? Batteries? Lithium mines?

  • SpaceX/xAI is investing in creating their own fab. If they can, Apple certainly can.

In the Tim Cook era when Apple needs to lock down the supply of a commodity part, they have a history of buying a dedicated manufacturing line for a manufacturing partner.

DRAM fabs are their own well-known specialized process which is covered by the DRAM companies. It doesn't make sense to start a competitor for it.

  • There's a bunch of chinese DRAM companies currently playing catchup to get closer to modern densities. Could Apple buy one of those? I'm guessing there would be regulatory hurdles to that on both sides of the pond.

    • Apple never bought a manufacturer, or built such capabilities.

      They buy and build manufacturing capacity, and there’s also a huge shortage in that today.

  • Which is funny, since until relatively recently DRAM was what you produced in fabs with processes that weren't competitive enough for CPUs anymore.

It's crazy to think Apple would actually fab memory (or TSMC for that matter). It's an entirely different process than logic.