Patent ID: 8541750

Claim:
An X-ray detector, comprising: a substrate, comprising a photo-sensing area; a patterned first conductive layer disposed on the substrate, the patterned first conductive layer comprising at least a gate positioned in the photo-sensing area; a gate insulating layer disposed on the substrate and covering the gate; a patterned semiconductor layer disposed on a surface of the gate insulating layer above the gate, the patterned semiconductor layer comprising a semiconductor channel region; a patterned second conductive layer, comprising at least a source and a drain disposed on the patterned semiconductor layer and positioned at two sides of the semiconductor channel region respectively; a dielectric layer disposed on the substrate and covering the semiconductor channel region and a portion of the patterned second conductive layer, the dielectric layer comprising a first via hole that exposes a portion of the drain; a patterned third conductive layer, comprising a bottom sensing electrode positioned in the photo-sensing area and disposed above the patterned semiconductor layer, the bottom sensing electrode being electrically connected to the drain through the first via hole; a patterned photosensitive silicon-rich (Si-rich) dielectric layer, disposed on a surface of the bottom sensing electrode; a patterned transparent conductive layer, comprising a top sensing electrode disposed on a surface of the patterned photosensitive Si-rich dielectric layer; a passivation layer, covering at least a portion of the patterned transparent conductive layer; and a scintillator layer, disposed above the passivation layer and corresponding to the patterned photosensitive Si-rich dielectric layer.