Patent ID: 7939453
Filing Date: 2011-05-10
Classification: H01L

Abstract:
1. A method of producing an organic transistor comprising: forming a hydrophobic/hydrophilic pattern substrate, in which the hydrophobic/hydrophilic pattern substrate having a hydrophobic region and a hydrophilic region formed in pattern on a surface thereof is formed by using a hydrophobic substrate exhibiting hydrophobicity on a surface thereof and by forming the hydrophilic region in pattern on the hydrophobic surface; forming a lyophilic functional layer, in which the lyophilic functional layer, made of an insulating functional material and having higher lyophilic property to an organic solvent than that of the hydrophobic region, is formed on the hydrophilic region; forming an organic semiconductor layer, in which the organic semiconductor layer made of an organic semiconductor material is formed on the lyophilic functional layer by selectively coating a coating solution for forming an organic semiconductor layer, which comprises an organic semiconductor material and an organic solvent, to the lyophilic functional layer, wherein the insulating functional material has a function of improving a semiconductor characteristic of the organic semiconductor layer and a property enabling selective provision to the hydrophilic region in the step of forming a lyophilic functional layer.