Patent ID: 9450077
Filing Date: 2016-09-20
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a thin film transistor, the thin film transistor comprising a gate electrode, a source electrode, a channel, and a drain electrode, the method comprising: providing a substrate and forming a gate electrode on the substrate; forming a gate insulating layer to cover the gate electrode; forming a semiconductive layer and a first photoresist layer on the gate insulating layer; forming a first photoresist pattern by patterning the first photoresist layer; forming a channel by etching a portion of the semiconductive layer without covering by the first photoresist pattern; revealing two opposite sides of the channel from the first photoresist pattern by removing two opposite sides of the first photoresist pattern; forming a metal layer to cover the whole surface of the substrate which has formed with the gate insulating layer, the channel, and the first photoresist pattern; disposing a second photoresist layer on the metal layer; forming a second photoresist pattern by patterning the second photoresist layer; forming a source electrode and a drain electrode by etching a portion of the metal layer without covering by the second photoresist pattern; and removing the first photoresist pattern and the second photoresist pattern, wherein the second photoresist pattern covers portions of the metal layer except a portion corresponding to the first photoresist pattern.