Patent ID: 6323068
Filing Date: 2001-11-27
Classification: H01L

Abstract:
A method for fabricating a liquid crystal display device integrated with a driver circuit on a substrate, a surface of the substrate being divided into a P-channel region, an N-channel region, and a pixel region, the method comprising the steps of:forming a gate electrode on each of the P-channel, N-channel, and pixel regions of the substrate;forming a gate insulating layer on the entire surface of the substrate including the gate electrodes;forming a first transparent electrode layer over the gate insulating layer;forming a conductive layer over the first transparent electrode layer;forming a second transparent electrode layer over the conductive layer;removing portions of the first transparent electrode layer, the conductive layer, and the second transparent electrode layer to form source/drain electrodes adjacent the gate electrodes in each of the P-channel, N-channel, and pixel regions of the substrate;doping first impurities into the second transparent electrode layer in the P-channel region;doping second impurities into the second transparent electrode layer in the N-channel region and in the pixel region;forming a semiconductor layer over the entire surface of the substrate;annealing the semiconductor layer;forming a passivation layer over the entire surface of the substrate; andremoving portions of the passivation layer, the second transparent electrode, and the conductive layer in the pixel region to expose a portion of the first transparent electrode layer.