Patent ID: 7215399

Claim:
A method of manufacturing an array substrate for a liquid crystal display device, said method comprising: forming a gate electrode, a gate line, and a gate pad on a substrate by sequentially depositing a metal layer and a transparent conductive layer and patterning, the metal layer and the transparent electrode having edges which coincide with each other after forming the gate electrode, the gate line and the gate pad; forming a gate insulating layer on the gate electrode, the gate line, and the gate pad; forming an active layer on the gate insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes, a data line and a data pad on the ohmic contact layer; forming a pixel electrode contacting the drain electrode; forming a data pad terminal covering the data pad; forming a passivation layer on the pixel electrode and the data pad terminal; exposing the gate pad by etching the passivation layer and the gate insulating layer; and exposing the data pad terminal by etching the passivation layer.