Patent ID: 8389344

Claim:
A method of manufacturing an oxide semiconductor thin film transistor, comprising: forming a gate; forming a channel layer including a transparent oxide semiconductor; forming a gate insulation layer between the gate and channel layer; forming a passivation layer on the channel layer; and performing an annealing process to anneal the channel layer and the passivation layer after the forming of the passivation layer, forming an interlevel dielectric (ILD) layer on the gate insulation layer to cover the gate; and forming source and drain electrodes to connect to portions of both ends of the channel layer on the ILD layer, wherein the forming of the passivation layer includes forming the passivation layer to cover the ILD layer, the source electrode, and the drain electrode, the forming of the gate insulation layer includes forming the gate insulation layer on a substrate to cover the channel layer, the channel layer being on the substrate, and the forming of the gate includes forming the gate on the gate insulation layer.