February 09, 2007  AMO Manufactures First Graphene Transistors
Georgia Tech's Walt de Heer’s group had already made a few
rudimentary graphene structures, including a graphene planar
field-effect transistor in 2006.  A two-dimensional sheet of
carbon, called graphene, has many of the same interesting
properties as one-dimensional carbon nanotubes (CNTs). They
conduct electricity with virtually no resistance. Graphene will
provide a more controllable platform for integrated electronics
than is possible with CNTs since graphene structures can be
fabricated as large wafers using existing lithographic
techniques. Continuous graphene circuitry can be produced using
standard microelectronic processing techniques, which gives
scientists a road map for high-volume graphene electronics
manufacturing. De Heer’s team has managed to create feature
sizes as small as 80 nm–well on the way towards their goal of 10
nm–using electron beam lithography. Electrons move with very
little scattering through the resulting graphene