Patent ID: 6492643
Filing Date: 2002-12-10
Classification: G01N,G01T

Abstract:
An X-ray image sensing device having a plurality of pixels in a matrix configuration, a pixel comprising:a photoelectric conversion part to receive X-rays and generate electric charges from the X-rays; a charge storage part to accumulate the electric charges produced in the photoelectric conversion part, having a capacitor electrode, a pixel electrode and a dielectric layer located between the pixel electrode and the capacitor electrode; a ground line for discharging residual charges in the charge storage part, positioned on the capacitor electrode to electrically contact the capacitor electrode, and extending to an adjacent pixel, thereby having a step difference portion at an end of the capacitor electrode; and a switching part to control release of the charges stored in the charge storage part wherein the capacitor electrode is shaped so that a contact line of the step difference portion of the ground line is longer than a width of the ground line.