Patent ID: 8963214
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A thin film transistor, comprising: a substrate; an active layer formed over the substrate, wherein the active layer is formed of an oxide semiconductor; a gate insulating layer formed over the substrate and the active layer; source and drain electrodes formed on the gate insulating layer and electrically connected to the active layer; a gate electrode formed on the gate insulating layer and formed between the source and drain electrodes, wherein the gate electrode is spaced apart from the source electrode, wherein a first gap between the gate electrode and the source electrode is defined as a first offset region, wherein the gate electrode is spaced apart from the drain electrode, and wherein a second gap between the gate electrode and the drain electrode is defined as a second offset region; a passivation layer formed on i) the gate insulating layer, ii) the source and drain electrodes and iii) the gate electrode; and at least one auxiliary gate electrode formed on the passivation layer, wherein the auxiliary gate electrode comprises first and second auxiliary gate electrodes, wherein at least a portion of the first auxiliary gate electrode is located directly above the first offset region, wherein at least a portion of the second auxiliary gate electrode is located directly above the second offset region, and wherein the first and second auxiliary gate electrodes are formed on the same layer.