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[dvHW] IBM makes 26GHz graphene transistor

post #1 of 63
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Quote:
IBM researchers have created the first graphene-based transistor that achieves a frequency of 26GHz:
This accomplishment is an important milestone for the Carbon Electronics for RF Applications (CERA) program sponsored by DARPA, as part of the effort to develop the next-generation of communication devices.

Graphene is a special form of graphite, consisting of a single layer of carbon atoms packed in honeycomb lattice, similar to an atomic scale chicken wire. Graphene has attracted immense worldwide attention and activities because its unusual electronic properties may eventually lead to vastly faster transistors than any transistors achieved so far.

The work is performed by inter-disciplinary collaboration at IBM T. J. Waston Research Center. "Integrating new materials along with the miniaturization of transistors is the driving force in improving the performance of next generation electronic chips," said IBM researchers involved in this project.

The operation speed of a transistor is determined by the size of the device and the speed at which electrons travel. The size dependence was one of the driving forces to pursue ever-shrinking Si transistors in semiconductor industries. A key advantage of graphene lies in the very high electron speed with which electrons propagate in it, essential for achieving high-speed, high-performance transistors.

Now, IBM scientists have fabricated nanoscale graphene field-effect transistors and demonstrated the operation of graphene transistors at the GHz frequency range. More importantly, the scaling behavior, i.e. the size dependence of the performance of the graphene transistors was established for the first time. The team found that the operation frequency increases with diminishing device dimension and achieved a cut-off frequency of 26 GHz for graphene transistors with a gate length of 150 nm, the highest frequency obtained for graphene so far.

IBM researchers expect that by improving the gate dielectric materials, the performance of these graphene transistors could be further enhanced. They expect that THz graphene transistors could be achieved in an optimized graphene transistor with a gate length of 50 nanometers. In the next phase, the IBM researchers also plan to pursue RF circuits based on these high-performance transistors.
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post #2 of 63
Bye bye silicon, nice knowing ya.
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post #3 of 63
Wonder how it folds
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post #4 of 63
And so the cycle continues. These will come out and be huge (150nm it says? hmm), and then they'll gradually shrink them down just like with current cpus
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post #5 of 63
25ghz? Thz? that makes the i7 sound like a crappy Pentium
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post #6 of 63
the real problem is we aren't gonna see these cpu's for decades! which sucks but o well that's the way the market works...

o ya can you imagine what the games will be like when these cpu's are needed !!! **** ORGASM!!

o ya and maybe duke forever will be out by then?
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post #7 of 63
Thz. 'Nuff said.
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post #8 of 63
Quote:
Originally Posted by Redmist View Post
And so the cycle continues. These will come out and be huge (150nm it says? hmm), and then they'll gradually shrink them down just like with current cpus
Hey, faster is faster.
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post #9 of 63
Quote:
Originally Posted by VCheeZ View Post
Thz. 'Nuff said.
lol agreed.

A friend of mine [technologically illiterate] tried to argue with me that computers are getting ready to hit their ceiling cause some website told him so.

guess I get the last laugh eh?

Looks like carbon is getting more and more useful. has anyone on here heard of the "Buckie-ball" paper? they take a few moles of carbon atoms, make buckie balls out of em, then stack the balls into a cylindrical shape. do some other fancy chemical stuff, and they make paper thats like 100 times thinner than regular paper that you cant tear with your hands. I'll see if I cant find the article.
post #10 of 63
So much for Moore's Law.
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