Patent ID: 8435842
Filing Date: 2013-05-07
Classification: H01L,Y02E,Y02P

Abstract:
1. A method for manufacturing a flexible semiconductor device, comprising: (i) performing a first printing process so as to form an insulating film on an upper surface of a resin film, (ii) after performing the first printing process, performing a second printing process so as to form a pattern of source and drain extraction electrodes on the upper surface of the resin film, (iii) after performing the second printing process, performing a third printing process so as to form a semiconductor layer on the insulating film so that the semiconductor layer contacts with the pattern of extraction electrodes, (iv) after performing the third printing process, performing a fourth printing process so as to form a sealing resin layer on the upper surface of the resin film so that the sealing resin layer covers the semiconductor layer and the pattern of extraction electrodes, and (v) placing a metal foil on the sealing resin layer by laminating a lower surface of the metal foil onto an upper surface of the sealing resin layer, and forming a gate electrode from the metal foil by etching the metal foil, the metal foil having a surface roughness (Ra) of 300 nm or less at the lower thereof.