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[ARS] Breakthrough in graphene circuitry, reaches the Ghz range

post #1 of 30
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Quote:
The new work creates a graphene ring oscillator (with gold wiring) by growing the graphene directly on the device via chemical vapor deposition. The features of the devices are large by today's standards—anywhere from one to three micrometers—but they were able to control them, allowing them to track how the devices' performance scaled with decreasing voltage size. Because the idea was to run the device as fast as possible, the fact that the graphene wasn't semiconducting was an advantage. The device could run as fast as it could shuffle its electrons around.

At 3µm features, they managed to get an oscillation at 350MHz. Two microns raised that to more than 600MHz, while one-micron features created a 1.2GHz device. That's nothing special for current silicon devices, but it's a major step for graphene-based hardware.

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post #2 of 30
CANT WAIT FOR GRAPHENE! Its going to be so sweet. Definitely in for this.
post #3 of 30
http://www.bit-tech.net/news/hardware/2010/09/02/graphene-transistor-hits-300ghz/

1.2Ghz @ 1um... seems weak. Still super excited for the technology though.. Hurry up already. This and Nanowires are so much fluff and stuff (for now).
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post #4 of 30
Any progress forward is great with this "wonder" material. IBM has already created graphene transistors that go over 10ghz with the potential of up to 100ghz+. Can't wait to see this by 2020 hopefully.
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post #5 of 30
Quote:
Originally Posted by OcN13 View Post

Any progress forward is great with this "wonder" material. IBM has already created graphene transistors that go over 10ghz with the potential of up to 100ghz+. Can't wait to see this by 2020 hopefully.

A transistor is one thing.

A full ring oscillator based on NOR gates is a whooole different story.
   
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post #6 of 30
Quote:
Originally Posted by kevinf View Post

http://www.bit-tech.net/news/hardware/2010/09/02/graphene-transistor-hits-300ghz/

1.2Ghz @ 1um... seems weak. Still super excited for the technology though.. Hurry up already. This and Nanowires are so much fluff and stuff (for now).

Uhhh, 1.2 Ghz is pretty good considering this is one of the first iterations of graphene. Furthermore, an intel 80386 1 um chip had a frequency of 33 MHz, which makes graphene 36 times faster. Suppose this ratio doesnt get any better--a chip of graphene with the same transistor size as a chip of silicon would run at 144 Ghz. How is that not substantial or weak?
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post #7 of 30
Quote:
Originally Posted by serp777 View Post

Quote:
Originally Posted by kevinf View Post

http://www.bit-tech.net/news/hardware/2010/09/02/graphene-transistor-hits-300ghz/

1.2Ghz @ 1um... seems weak. Still super excited for the technology though.. Hurry up already. This and Nanowires are so much fluff and stuff (for now).

Uhhh, 1.2 Ghz is pretty good considering this is one of the first iterations of graphene. Furthermore, an intel 80386 1 um chip had a frequency of 33 MHz, which makes graphene 36 times faster. Suppose this ratio doesnt get any better--a chip of graphene with the same transistor size as a chip of silicon would run at 144 Ghz. How is that not substantial or weak?

Marty, where we're going... we don't need megahertz!
Bring on the 144GHz any day. That is not weak at all to me.
post #8 of 30
Quote:
Originally Posted by kennyparker1337 View Post

Marty, where we're going... we don't need megahertz!
Bring on the 144GHz any day. That is not weak at all to me.

Nicely done!!


lachen.gif

OnT: This is really exciting. Watching with great interest.
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post #9 of 30
Quote:
Originally Posted by kennyparker1337 View Post

Marty, where we're going... we don't need megahertz!
Bring on the 144GHz any day. That is not weak at all to me.

Now for IPC...tongue.gif

I'd be happy with bulldozer IPC at that frequency though biggrin.gif

Edit: But seriously, with these advancements could a functioning CPU be built as an oscillator is just a "oh I can do this" demo.
Edited by JassimH - 6/17/13 at 4:06pm
    
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post #10 of 30
Quote:
Originally Posted by JassimH View Post

Now for IPC...tongue.gif

I'd be happy with bulldozer IPC at that frequency though biggrin.gif
Maan, you'd even be happy with Netburst IPC at that freq wink.gif
    
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