▎ 摘　　要

NOVELTY - The electronic apparatus comprises a substrate and graphene layer (23) and gate insulating layer that are formed on the substrate. A source electrode (23S) is formed in one end of the graphene layer. A drain electrode (23D) is formed in the other end of the graphene layer. A gate electrode is provided that applies gate voltage to the graphene layer that is equipped between the source region and a drain region. An opening part column (23N) is also provided that is equipped between the source electrode and a drain electrode. USE - Electronic apparatus for switching electric current. ADVANTAGE - The electronic apparatus comprises a substrate and graphene layer and gate insulating layer that are formed on the substrate, where a source electrode is formed in one end of the graphene layer, and thus enables to form a big conduction gap in the band structure of the graphene layer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing electronic apparatus. DESCRIPTION OF DRAWING(S) - The drawing shows a top view of the electronic apparatus. (Drawing includes non-English language text). Graphene layer (23) Opening part (23A) Drain electrode (23D) Opening part column (23N) Source electrode (23S)