Patent ID: 7445954
Filing Date: 2008-11-04
Classification: H01L,Y02E

Abstract:
1. A method for the manufacture of a thin-film field-effect device comprising, on a mechanical support layer, source and drain electrodes (S, D) suitable for operating as the source and collector of a flow of charge carriers within the device, and a layer of semiconductor material (SC) disposed between the electrodes (S, D) for the formation of a conduction channel the resistance of which is modulated by the application of a predetermined control voltage to a gate electrode (G) insulated from the channel region, characterized in that it comprises, in succession, the steps of: providing a mechanical support layer in the form of a film (INS) of flexible, electrically-insulating material, arranging the film (INS) in an extended condition so that it has substantially smooth free surfaces, the surfaces being suitable for receiving metallizations (MET) for the formation of electrodes (S, D), forming the source and drain electrodes (S, D) in accordance with a predetermined configuration on a first surface of the insulating film, forming the gate electrode (G) in accordance with a predetermined configuration on the part of the surface of the insulating film (INS) opposite to that carrying the source and drain electrodes (S, D), and depositing the layer of semiconductor material (SC) between the source and drain electrodes (S, D); wherein the flexible film (INS) constituting the mechanical support is transparent and the gate electrode (G) is formed by the successive steps of: