Patent ID: 8334164

Claim:
A method of fabricating an image sensor, the method comprising: providing a substrate comprising a plurality of pixel circuits thereon, each of the pixel circuits corresponding to a pixel defined on the substrate; forming a conductive layer on the substrate; performing a first photolithography-etching process (PEP) to remove portions of the conductive layer to form a plurality of pixel electrodes and to form a shield electrode between any two adjacent pixel electrodes, each of the pixel electrodes being positioned in one pixel and electrically connected to the corresponding pixel circuit; forming an insulating layer covering the pixel electrodes and the shield electrode; performing a second PEP to remove portions of the insulating layer to expose central portions of the pixel electrodes, while edge portions of the pixel electrodes and the shield electrode are still covered by the insulating layer; forming a photo conductive layer on the pixel electrodes and the shield electrode; and forming a transparent conductive layer covering the photo conductive layer.