Patent ID: 9614098
Date: 2017-04-04
CPC Classifications: H01L

Claim:
1. A method of manufacturing a thin film transistor, comprising: forming a gate electrode, a gate insulating layer, a metal oxide semiconductor (MOS) active layer, a source electrode and a drain electrode on a substrate; forming a pattern layer of indium oxide series binary metal oxide, wherein the pattern layer comprises a first pattern corresponding to the source electrode, a second pattern corresponding to the drain electrode and a third pattern corresponding to a gap between the source electrode and the drain electrode, and the pattern layer of indium oxide series binary metal oxide directly contacts the source electrode and the drain electrode; forming an insulating layer over the source electrode and the drain electrode; and using the insulating layer formed over the source electrode and the drain electrode as a protection layer, implanting metal doping ions into the pattern layer of indium oxide series binary metal oxide by using an ion implanting process, and annealing it, so that the indium oxide series binary metal oxide of the third pattern is converted into indium oxide series multiple metal oxide to form the MOS active layer.