Patent ID: 7994500
Filing Date: 2011-08-09
Classification: H01L

Abstract:
1. A thin film transistor (TFT), comprising: a substrate; source and drain electrodes formed on the substrate; an active layer formed of an oxide semiconductor and formed to at least partially overlap both of the source and drain electrodes; a gate insulating layer formed on the substrate to cover the active layer and the source and drain electrodes; a gate electrode formed on the gate insulating layer and insulated from the active layer by the gate insulating layer; and an interfacial stability layer formed on at least one of top and bottom surfaces of the active layer, the interfacial stability layer being formed of an oxide having a band gap of 3.0 to 8.0 eV, wherein a portion of the interfacial stability layer is interposed between the source and drain electrodes and the active layer.