Patent ID: 9012914
Filing Date: 2015-04-21
Classification: H01L,H05B,Y02B

Abstract:
1. A thin-film transistor, comprising: a gate electrode above a substrate; a gate insulating layer above the gate electrode; a semiconductor layer that is opposed to the gate electrode with the gate insulating layer therebetween; an etch-stopper layer above the semiconductor layer and comprising an organic material; and a source electrode and a drain electrode that are opposed to each other, each of the source electrode and the drain electrode having at least a portion located above the etch-stopper layer, wherein the etch-stopper layer includes a modified layer in a region which (i) is in a surface of the etch-stopper layer exposed from the source electrode and the drain electrode and (ii) has at least a portion contacting a surface of the semiconductor layer, the modified layer being an altered layer that has been modified, the altered layer being generated by alteration of a material of the etch-stopper layer, and wherein the modified layer has a chlorine concentration which is at least ten times higher than a chlorine concentration of the etch-stopper layer.