Patent ID: 9748395
Date: 2017-08-29
CPC Classifications: H01L

Claim:
1. A thin film transistor, comprising: a substrate; a gate electrode, disposed on the substrate, and having a plurality of through holes; a channel layer, located on the gate electrode; a gate insulation layer, disposed between the gate electrode and the channel layer; an etching stop layer, disposed on the channel layer, and having a plurality of contact holes overlapped with the through holes in a direction perpendicular to the substrate; and a source electrode and a drain electrode, disposed on the etching stop layer and respectively electrically connected to the channel layer through the contact holes, wherein the channel layer further comprises a first channel region and a second channel region, the first channel region is electrically connected to the source electrode and the drain electrode respectively through the contact holes, and the second channel region is shielded by the etching stop layer.