Patent ID: 6692997
Filing Date: 2004-02-17
Classification: G02F,H01L

Abstract:
A method of manufacturing an active matrix display device, comprising:a) forming a semiconductor layer on an insulating substrate; b) forming a gate insulating layer over the whole surface of the substrate while covering the semiconductor layer; c) forming a gate electrode on the gate insulating layer over the semiconductor layer; d) ion-implanting a high-density impurity into the semiconductor layer to form high-density source and drain regions in the semiconductor layer; e) forming an inter insulating layer over the whole surface of the substrate; f) etching the inter insulating layer to form contact holes, the contact holes exposing portions of the high-density source and drain regions; g) depositing sequentially a transparent conductive layer and a metal layer on the inter insulating layer; h) patterning the transparent conductive layer and the metal layer to form the source and drain electrodes, the source and drain electrodes contacting the high-density source and drain regions through the contact holes and having a dual-layered structure; i) forming a passivation layer over the whole surface of the substrate; j) etching the passivation layer and the metal layer to form an opening portion exposing a portion of the transparent conductive layer, thereby forming a pixel electrode; and k) performing a reflow process to cover the metal layer in the opening portion by the passivation layer.