Patent ID: 8963147
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A thin film transistor comprising, on an insulating substrate, at least: a gate electrode; a gate insulating layer; a source electrode; a drain electrode; a metal oxide layer including a semiconductor region and an insulating region, each of the semiconductor region and the insulating region being composed of a same metal oxide material; and an insulating protective layer, wherein: the semiconductor region includes a region between the source electrode and the drain electrode, and is overlaid on a part of each of the source electrode and the gate electrode; the semiconductor region is formed between the gate insulating layer and the insulating protective layer to abut on at least one of the gate insulating layer and the insulating protective layer; one part of the gate insulating layer or of the insulating projective layer, which abuts on the semiconductor region, contains therein hydrogen atoms, and a concentration of the hydrogen atoms contained in the one part of the gate insulating layer or of the insulating projective layer is set to be within a range from 1×10 an other part of the gate insulating layer or of the insulating projective layer, which does not abut on the semiconductor region, contains therein hydrogen atoms, and a concentration of the hydrogen atoms contained in the other part of the gate insulating layer or of the insulating projective layer is set to be lower than 1×10