Patent ID: 8946008
Filing Date: 2015-02-03
Classification: H01L

Abstract:
1. A method of manufacturing a TFT array panel, the method comprising: stacking a polysilicon layer, an insulating layer, and a metal layer on a substrate; forming a photosensitive film pattern having a first portion and a second portion having a thickness smaller than that of the first portion on the metal layer; forming a metal pattern, a gate insulating layer, and a semiconductor by etching the metal layer, the insulating layer, and the polysilicon layer using the photosensitive film pattern as a mask; forming a gate electrode by removing the second portion of the photosensitive film pattern and by etching the metal pattern using the first portion as a mask; removing the first portion of the photosensitive film pattern; forming an interlayer insulating layer on the gate electrode; forming contact holes that expose the semiconductor in the interlayer insulating layer; forming a source area and a drain area by doping semiconductor conductive impurities through the contact holes, respectively; and forming a source electrode and a drain electrode that are connected to the source area and the drain area, respectively, on the interlayer insulating layer.