Patent ID: 8785259
Filing Date: 2014-07-22
Classification: H01L

Abstract:
1. A method for manufacturing an organic transistor, the method comprising the steps of: forming a first conductive layer over a substrate; performing plasma treatment on a surface of the first conductive layer to form a gate insulating film, wherein the plasma treatment is performed with density of electron of 10 forming a second conductive layer over and in contact with the gate insulating film; forming a first composite layer over and in contact with the second conductive layer and the gate insulating film; forming a second composite layer over and in contact with the first composite layer and the gate insulating film; and forming an organic semiconductor layer over and in contact with the second composite layer and the gate insulating film, wherein the first composite layer comprises a first organic compound and a metal oxide which are mixed with each other, wherein the second composite layer comprises a second organic compound and a metal selected from an alkali metal and an alkaline-earth metal, and wherein the first organic compound and the second organic compound are different from each other.