▎ 摘　　要

NOVELTY - The crystal orientation along the extension direction of graphene (1) and width of graphene are regulated by the scanning probe microscope. The graphene is used as channel (3) of FET and the band gap is arbitrarily controlled by width direction perpendicular to the extension direction of the channel. The crystal orientation along extension direction of graphene and width of graphene are regulated by the atomic force microscope, magnetic force microscope or electric force microscope in a hydrogen atmosphere. USE - Electronic device manufacturing method. ADVANTAGE - Small-sized and high-speed transistor can be manufactured by controlling the width and crystal orientation direction of graphene arbitrarily. DESCRIPTION OF DRAWING(S) - The drawing shows the explanatory view illustrating the manufacturing process of electronic device. (Drawing includes non-English language text) Graphene (1) Cantilever (2) Channel (3) Substrate (4) Insulator (5)