Patent ID: 8071432
Filing Date: 2011-12-06
Classification: H01L

Abstract:
1. A method of manufacturing an organic transistor active substrate including an organic transistor in which a first electrode is formed on a substrate, a first insulating film is formed on the first electrode, a pair of second electrodes is formed on the first insulating film, an active layer made of an organic semiconductor material is formed on the pair of second electrodes, a second insulating film is formed on the organic transistor, and a third electrode is formed on the second insulating film, wherein the third electrode is electrically coupled to one of the second electrodes via a through-hole provided through the second insulating film, the method comprising the steps of: forming the first electrode, the pair of second electrodes and the active layer, by inkjet ejection; forming the first insulating film by coating; and forming the second insulating film and the third electrode, by screen printing, wherein the second insulating film is a single layer in direct contact with, and between, the active layer and the third electrode, the second insulating film is formed by dissolving a component including polyvinyl butyral resin with an alcohol solvent having at least ether linkage to obtain a paste, and coating the paste onto the organic transistor by screen printing, the third electrode is primarily made of silver, the second insulating film and the third electrode are formed under similar screen plate conditions, and the similar screen plate conditions include printing with a screen plate of a similar calendar mesh.