Patent ID: 9224868
Filing Date: 2015-12-29
Classification: H01L

Abstract:
1. A pixel structure, comprising: a substrate; a patterned semiconductor layer, disposed on the substrate, the patterned semiconductor layer comprising a channel layer, a doping source, a doping drain, a light doping source and a light doping drain; an insulation layer, disposed on the patterned semiconductor layer; a gate electrode, disposed on the insulation layer, the channel layer overlapping the gate electrode in a perpendicular projection direction; a first inter-layer dielectric (ILD) layer, disposed on the gate electrode; a second ILD layer, disposed on the first ILD layer; a third ILD layer, disposed on the second ILD layer, wherein the insulation layer, the first ILD layer, the second ILD layer and the third ILD layer have a first contact window and a second contact window partially exposing the patterned semiconductor layer respectively; and a source electrode and a drain electrode, disposed on the third ILD layer, wherein the source electrode is electrically connected to the patterned semiconductor layer via the first contact window, and the drain electrode is electrically connected to the patterned semiconductor layer via the second contact window, wherein a thickness of the first ILD layer is substantially in a range between 20 nanometers (nm) and 40 nm, and a sum of the thickness of the first ILD layer and a thickness of the second ILD layer is substantially in a range between 200 nm and 400 nm.