Graphene magnetologic gates could replace silicon transistor logic

http://www.extremetech.com/computing/98801-spin-based-graphene-magnetologic-gates-could-replace-silicon-transistor-logic

by ukdm • 15 years ago

60 11 15 years ago

extremetech.com

jpdoctor3• 15 years ago

Replacing "silicon transistor logic" is no longer about physics and material science, it is about economy of scale.

And silicon is going to be pretty damn hard to beat for many decades to come. Just ask the GaAs guys.

mkeblx• 15 years ago

I've seen variants of this article a number of times. Is it really many decades from here already getting below 20nm feature sizes with Si?

hugh3• 15 years ago

The ongoing miniaturization of silicon technology has to end fairly soon, as the atomic scale is approaching rapidly. The 11nm node is scheduled for 2015. The silicon-silicon bond length is 0.235 nm. There's no longer plenty of room at the bottom.

The question is whether, when silicon runs out, something else can take over, or whether we just put our hands up and say "OK, that's it, that's about as fast as our computers are ever gonna get".

There's the possibility that alternative technologies will exist but that they'll be much more expensive. So consumer electronics will be based on silicon, and outrageously expensive supercomputers will use graphene or diamond or any one of a number of currently speculative technologies. So far, though, none of 'em is even close to being able to compete with silicon for any price.

Graphene magnetologic gates could replace silicon transistor logic

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