Patent ID: 9741864
Date: 2017-08-22
CPC Classifications: H01L

Claim:
1. A thin-film transistor comprising: a source electrode and a drain electrode; a semiconductor layer provided in contact with the source electrode and the drain electrode; a gate electrode provided corresponding to a channel between the source electrode and the drain electrode; and an insulating layer provided between the gate electrode and the semiconductor layer, wherein the semiconductor layer is a composite metal oxide obtained by adding, to a first metal oxide capable of generating an electron carrier by introducing oxygen vacancy, an oxide having oxygen dissociation energy that is greater than oxygen dissociation energy of the first metal oxide by at least 200 kJ/mol, wherein the semiconductor layer uniformly comprises an additional oxide having oxygen dissociation energy that is smaller than the oxygen dissociation energy of the first metal oxide in an amount smaller than an additive amount of the oxide.