The Post-Silicon future

by
in hardware on (#3QF)
story imageIt's hard to understate the impact of the silicon chip and the advances wrought by Moore's law and steady research and development in miniaturizing transistors on silicon. But we're getting close to the limits, and getting beyond 9nm puts us at the limits of physics, it would seem. So what's next?

IBM is hoping it will be the first to find out. Not one to shy away from the big bets, IBM is putting $3B into researching the next step, including having a go at 7nm processes, new semiconducting materials like Gallium-Arsenide, and technologies like carbon nanotubes and graphene. At 7nm, the game changes significantly, and quantum physics begins to matter as much as traditional physics. Steve Torbak points out there's hope for technologies like racetrack memory and neuromorphic memory, too.

Or maybe, there's still room for improvement with what we've got. We're not done with Systems-on-a-Chip, after all, and DARPA has recently taken this approach to put an entire communications stack on a dime-sized chip.

[Ed. note: All I know is, to watch the next generation of silly cat videos, we're going to need a serious boost in hardware. /grin]

Gallium Arsinide isn't New (Score: 2, Informative)

by wildwombat@pipedot.org on 2014-07-14 04:35 (#2G8)

It hasn't been used in mainstream computers but it isn't new. It was used in the Cray 3 (even if only one was ever produced) and that was back in the late 80s and early 90s. They've actually got one of those chips at the Computer History Museum in Mountain View. It is also used in some satellite communication electronics.

Even if it gets continued development and turns out to be technically superior to Silicon on not sure how it will fare. If it is found to be environmentally harmful it could end up restricted under something like ROHS. Anybody know how toxic it is once its in its crystallized form?

Oh, and here is a cool video I came across when I googled for the Cray 3 link. Its Seymour Cray talking about Gallium Arsinide at the 1988 Supercomputing Conference.

Cheers,
--WW
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