Patent ID: 6939750
Filing Date: 2005-09-06
Classification: H01L

Abstract:
1. A thin film transistor device manufacturing method comprising the steps of: forming a semiconductor film in a thin film transistor forming region on a substrate; forming a gate insulating film and a gate electrode on the semiconductor film; forming an interlayer insulating film on an overall upper surface of the substrate; forming a first conductive film as a display electrode on the interlayer insulating film; forming a resist film, in which contact hole forming regions are opened, on the first conductive film; forming contact holes, which reach the semiconductor film from a surface of the first conductive film, by executing an etching while using the resist film as a mask; removing the resist film to leave only on the display electrode forming region; etching the first conductive film while using the resist film remaining on the display electrode forming region as a mask; removing the resist film on the display electrode forming region; forming a second conductive film on the overall upper surface of the substrate; and processing the second conductive film into a predetermined shape.