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IBM researchers demo graphene IC on SiC wafer
Tech Business
Written by Gizmo   
Monday, 13 June 2011 16:51

Nicolas Mokhoff
EETimes

MANHASSET, NY -- IBM Research unveiled the first integrated circuit fabricated from wafer-size graphene, and demonstrated a broadband frequency mixer operating at frequencies up to 10 GHz.

 

The analog IC consists of a graphene transistor and a pair of inductors integrated on a silicon carbide wafer, and is aimed at wireless communications.

The circuit operates as a broadband frequency mixer, which produces output signals with mixed frequencies (sum and difference) of the input signals. Mixers are fundamental components of many electronic communication systems. Frequency mixing up to 10 GHz and excellent thermal stability up to 125 deg.C has been demonstrated with the graphene integrated circuit, according to the researchers.

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