Patent ID: 6764900
Filing Date: 2004-07-20
Classification: H01L

Abstract:
A method comprising: fabricating an X-ray detector array, including the steps of:providing a substrate having a capacitor area and a transistor area; forming a gate line transversely extending on the substrate, wherein the gate line includes a gate electrode in the transistor area; forming a gate insulation layer on the gate line, the gate electrode and the substrate; forming a semiconducting island on the gate insulation layer in the transistor area; forming a common line and a data line longitudinally extending on the gate insulation layer, and forming a source electrode and a drain electrode on the semiconducting island to form a thin film transistor (TFT) structure, wherein the drain electrode electrically connects the data line; forming a first conductive layer on the gate insulation layer in the capacitor area and to cover the common line, forming a conformal passivation layer on the gate insulation layer, the first conductive layer, the TFT structure, the data line and the gate line; forming a first via hole penetrating the passivation layer to expose the surface of the source electrode; forming a planarization layer on the passivation layer and filling the first via hole; forming a second via hole and a third via hole penetrating the planarization layer, wherein the second via hole exposes at least the surface of the source electrode, and the third via hole exposes the surface of the passivation layer in the capacitor area; and forming a conformal second conductive layer on part of the planarization layer and electrically connecting the source electrode; wherein a storage capacitor structure is composed of the first conductive layer, the passivation layer and the second conductive layer in the capacitor area.