Patent ID: 8623695

Claim:
A method for producing a semiconductor device, comprising: forming a gate electrode on a substrate; forming a gate insulating film on the gate electrode and the substrate; forming an organic semiconductor layer on the substrate; forming a protective pattern on the organic semiconductor layer; and patterning the organic semiconductor layer by dissolving, in an organic solvent, or subliming the organic semiconductor layer using the protective pattern as a mask, the organic semiconductor layer being formed directly on the gate insulating film in a first area between a source electrode and a drain electrode, and in a second area extending beyond an outer edge of the source electrode; forming an insulating protective film that directly contacts each of a first portion of the drain electrode, the protective pattern, side surfaces of the patterned organic semiconductor layer and the protective pattern, and the gate insulating film, respectively; forming an interlayer insulator that is separate from the insulating protective film and that directly contacts a second portion of the drain electrode and is formed over the entire surface of the substrate; forming a via hole in the interlayer insulator disposed in the second portion of the drain electrode so as to reach the drain electrode, wherein the first portion of the drain electrode is disposed between the second portion of the drain electrode and the side surface of the patterned organic semiconductor layer; and forming an interconnect line on the interlayer insulator.