Patent ID: 7723152
Filing Date: 2010-05-25
Classification: B82Y,H01L,H05K,Y10T

Abstract:
1. A method of manufacturing an organic field effect transistor, comprising the steps of: (A) forming a gate electrode on a substrate, (B) thereafter forming a gate insulation layer over an entire surface, (C) then forming source/drain electrodes on said gate insulation layer, and (D) thereafter forming, without vacuum assistance, a channel formation region in a portion, between said electrodes, of said gate insulation layer, wherein in said step (D), a nozzle for applying an organic semiconductor material coating liquid and said substrate are moved relative to each other where said nozzle is disposed on a lower side of said substrate, and a substrate surface provided thereon with said gate insulation layer and said source/drain electrodes is faced down, the substrate surface being controlled in wettability so as thereby to apply said organic semiconductor material coating liquid to the portion, between said electrodes, of said gate insulation layer, said coating liquid being applied as a continuous liquid by capillarity and thereafter said organic semiconductor material coating liquid is dried so as thereby to obtain a channel formation region including the organic semiconductor material.