Patent ID: 6690031
Filing Date: 2004-02-10
Classification: G02F,H01L

Abstract:
A semiconductor device comprising:at least a thin film transistor formed on an insulating film; a first interlayer insulating film covering the thin film transistor; a first transparent conductive film formed on the first interlayer insulating film; a capacitance insulating film formed on the first transparent conductive film; an opening portion formed by patterning the first transparent conductive film and the capacitance insulating film; a second interlayer insulating film covering the opening portion and overlapping a portion of the first transparent conductive film and the capacitance insulating film; a contact hole formed in the first interlayer insulating film and the second interlayer insulating film to reach the thin film transistor; a second transparent conductive film formed on the capacitance insulating film and being electrically connected to the thin film transistor, wherein a capacitor is formed between the first and second transparent conductive films with the capacitance insulating film interposed therebetween, wherein the opening portion has a larger diameter than the contact hole.