Patent ID: 8343822

Claim:
A method for manufacturing a flexible semiconductor device comprising the steps of: (i) forming an insulating film on the upper surface of a metal foil, (ii) forming one or more patterns of source/drain extraction electrodes on the upper surface of the metal foil, (iii) forming a semiconductor layer on the insulating film so that the semiconductor layer contacts with the patterns of extraction electrodes, (iv) forming a sealing resin layer on the upper surface of the metal foil so that the sealing resin layer covers the semiconductor layer and the patterns extraction electrodes, and (v) forming an electrode by etching the metal foil wherein the above metal foil is used as a substrate for the insulation film, the extraction electrode pattern, the semiconductor layer and the sealing resin layer each of which is formed in any of the steps (i) to (iv), and the above metal foil is used also as the constituent material of the above electrode in the step (v).