Patent ID: 7927897
Filing Date: 2011-04-19
Classification: G03F,H01L

Abstract:
1. A method of manufacturing an array substrate, comprising: forming a gate line and a gate electrode on a base substrate; forming a gate insulation layer, an active layer, and a data metal layer on the base substrate formed the gate line and the gate electrode; forming a photoresist film using a photoresist composition comprising a binder resin, a photo acid generator, an acryl resin represented by Chemical Formula 1, and a solvent, the photoresist film formed on the data metal layer; forming a first photoresist pattern by patterning the photoresist film, the first photoresist pattern comprising a source electrode/line portion having a first thickness, a drain electrode portion having the first thickness, and a channel forming portion having a second thickness; forming a data line and a channel portion by etching the data metal layer and the active layer using the first photoresist pattern as a mask; forming a second photoresist pattern by removing the channel forming portion of the first photoresist pattern, the second photoresist pattern exposing a portion of the data metal layer; forming a source electrode and a drain electrode by etching the data metal layer using the second photoresist pattern as a mask; and forming an ohmic contact pattern by etching the active layer using the second photoresist pattern as a mask, wherein R