Patent ID: 8785912

Claim:
A graphene electronic device comprising: a gate electrode on a substrate; a first gate insulating film on the substrate to cover the gate electrode; a plurality of graphene channel layers on the first gate insulating film; a second gate insulating film between the plurality of the graphene channel layers; a source electrode directly connected to one edge of each of the plurality of the graphene channel layers; and a drain electrode directly connected to another edge of each of the plurality of the graphene channel layers, wherein the plurality of the graphene channel layers includes a first graphene channel layer on the first gate insulating film and a second graphene channel layer on the second gate insulating film, the second gate insulating film is on the first graphene channel, and each of the first graphene channel layer and the second graphene channel layer has a width in a range of 1 nm to 20 nm, and wherein the first graphene channel layer has a length greater than that of the second graphene channel layer.