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MIT Dialing in on Pure Carbon Chip

Published: 24 March 2009
 by Staff
CAMBRIDGE, MA -- A graphene-based chip could permit much higher speeds than silicon components, MIT researchers said.

New research from the world's leading engineering school suggests graphene, a form of pure carbon, could enable "practical" systems in the 500 to 1,000 GHz range.
 
According to MIT, university researchers built an experimental chip called a frequency multiplier that doubled the frequency of an electromagnetic signal. The graphene prototype has a single transistor and is said to produce a clean output that needs no filtering.

The work builds on previous research that showed graphene atoms could be used to make prototype transistors and other basic devices, MIT said. 
 
Frequency multipliers are common in radio communications and other applications but require multiple components and produce noisy, high power signals.
 
The findings are reported in the May issue of Electron Device Letters.
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