Patent ID: 6140158
Filing Date: 2000-10-31
Classification: G02F,H01L

Abstract:
A method of manufacturing a thin film transistor-liquid crystal display, comprising the steps of:forming a semiconductor layer, a doped semiconductor layer and a first metal layer on a transparent insulating layer in sequence;etching the first metal layer using a first mask to form source and drain electrodes separated from one another by a selected distance;etching the doped semiconductor layer using the source and drain electrodes as an etch mask to form ohmic layers under the source and drain electrodes without the use of an independent etch mask;forming a gate insulating layer and a second metal layer on the substrate in sequence;etching the second metal layer using a second mask to form a gate electrode overlapped with the insides of the source and drain electrodes;etching the gate insulating layer using the gate electrode as an etch mask to expose the semiconductor layer without the use of an independent etch mask;etching the semiconductor layer using the ohmic layers as an etch mask to form a channel layer without the use of an independent etch mask;forming a transparent metal layer on the substrate; andetching the transparent metal layer using a third mask to form a pixel electrode connected to the source electrode.