Patent ID: 6534789
Filing Date: 2003-03-18
Classification: H01L

Abstract:
A thin film transistor matrix substrate comprising:an insulating substrate having a flat surface; a plurality of island patterns made of semiconductor and formed on the flat surface of said insulating substrate; a gate insulating film formed traversing an intermediate area of a flat surface of each of the plurality of island patterns; a gate layer formed on an intermediate surface area of said gate insulating film and exposing a wing of said gate insulating film on both sides thereof, said gate layer having side walls of a forward taper slanted relative to a normal to the flat surface of said insulating substrate and an upper surface generally perpendicular to the normal, and serving as a gate electrode and a gate wiring pattern and an interlayer insulating film formed on the gate layer, contacting the gate layer, the gate insulating film, and the plurality of island patterns.