Patent ID: 7208355
Filing Date: 2007-04-24
Classification: G02F,H01L,Y10S

Abstract:
1. A method for manufacturing a semiconductor device comprising the steps of: forming a semiconductor film on an insulating surface; etching the semiconductor film to form an active region of a thin film transistor and a first capacitance electrode of a capacitance; forming a first insulating film and a first conductive film sequentially over the active region and the first electrode of the capacitance; etching the first conductive film to form a gate electrode of the thin film transistor and a second electrode of the capacitance; forming a second insulating film over the gate electrode of the thin film transistor and the second electrode of the capacitance; forming a second conductive film over the second insulating film; etching the second conductive film, the second insulating film and the first insulating film to expose a part of the active region of the thin film transistor; forming a third conductive film connecting the active region of the thin film transistor; etching the second conductive film and the third conductive film to form a connection wiring of the thin film transistor and the third electrode of the capacitance.