Patent ID: 9698273
Date: 2017-07-04
CPC Classifications: H01L

Claim:
1. A thin film transistor comprising: a gate electrode and a pair of source-drain electrodes provided on a substrate; an oxide semiconductor layer provided between the gate electrode and the pair of source-drain electrodes, the oxide semiconductor layer forming a channel; a channel protective film formed on the channel of the oxide semiconductor layer; a protection film provided over whole of a surface above the substrate, a portion of the channel protective film being formed between the protection film and the oxide semiconductor layer in a thickness direction of the thin film transistor; and a gate insulating film provided on a gate electrode side of the oxide semiconductor layer, and configured of one of a single film and a lamination film, the lamination film including a plurality of films, wherein the pair of source-drain electrodes cover the entire end faces of the single film of the gate insulating film or cover the entire end faces of each of the films in the lamination film of the gate insulating film, and cover at least part of each of a plurality of side faces of the gate insulating film.