Methods to eliminate amplifier glowing artifact in digital images captured by an image sensor

摘要

A charge coupled device includes a substrate; a plurality of image pixels arranged in a two dimensional array in the substrate for capturing an electronic representation of an image and for transferring charge in a first direction; a transfer mechanism for transferring charge in a second direction from the plurality of the image pixels for further processing; an amplifier structure disposed in the substrate that receives the charge from the transfer mechanism and converts the charge into a voltage signal; a first opaque layer spanning over the amplifier for blocking near-infrared light inherently generated by an electrical field within the amplifier structure when a voltage is applied; and a second opaque layer deposited into the substrate for also blocking near-infrared light inherently generated by an electrical field within the amplifier structure when a voltage is applied.