GRAPHENE MULTIPLE-VALUED LOGIC DEVICE, OPERATION METHOD THEREOF, AND FABRICATION METHOD THEREOF
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Dec 20, 2013
filing date -
Dec 21, 2012
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Abstract
A graphene multiple-valued logic device and a fabrication method thereof are disclosed. The graphene multiple-valued logic device includes a substrate, a graphene channel layer disposed on the substrate, source and drain electrodes disposed at both ends of the graphene channel layer, respectively, an insulator film formed on the graphene channel layer; and at least two gate electrodes disposed on the insulator film with a predetermined gap defined therebetween. The device allows adjustment of conductivity and resistance of the graphene channel layer depending on a gate voltage, whereby electric current flowing in the device can be variously changed when applied to a multiple-valued logic system.
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