Patent ID: 7459337
Filing Date: 2008-12-02
Classification: H01L

Abstract:
1. A method of fabricating a bottom gate type organic thin film transistor, the method comprising the acts of: forming a gate conductive layer pattern on a substrate; forming a gate insulating layer on an exposed portion of the surface of the substrate and the gate conductive layer pattern; forming source/drain electrodes on the gate insulating layer to expose a portion of the surface of the gate insulting layer above on the gate conductive layer pattern; forming an organic semiconductor thin film on the exposed portion of the surface of the gate insulating layer; forming on the organic semiconductor thin film a passivation layer pattern exposing a portion of the surface of the organic semiconductor thin film; and forming an organic semiconductor thin film pattern by etching the exposed surface of the organic semiconductor thin film using the passivation layer pattern as an etch mask, wherein the passivation layer pattern is composed of a mixture in which a lubricant oil comprising silicone oil, mineral oil or paraffin oil is mixed with a polymer or an organic melted in the lubricant oil.