Patent ID: 7638375
Filing Date: 2009-12-29
Classification: H01L

Abstract:
1. A method of manufacturing a thin film transistor (TFT) substrate, comprising: sequentially forming a transparent conductive layer and an opaque conductive layer on a substrate; patterning the transparent conductive layer and the opaque conductive layer using a first mask to form a gate pattern including a pixel electrode; forming a gate insulating layer and a semiconductor layer above the substrate; forming a contact hole which exposes a portion of the pixel electrode and a semiconductor pattern using a second mask; forming a conductive layer above the substrate; and patterning the conductive layer to form a source/drain pattern including a drain electrode which overlaps a portion of the pixel electrode, and removing portions of the gate insulating layer and the opaque conductive layer above the pixel electrode except a portion overlapping the drain electrode, by using a third mask, wherein the second mask is a slit mask, and wherein the forming the contact hole and the semiconductor pattern comprises: