Patent ID: 7585695
Filing Date: 2009-09-08
Classification: H01L,Y02E

Abstract:
1. A method for manufacturing an image sensor, the method comprising the steps of: (a) providing a substrate; (b) providing a photo-sensitive area disposed in the substrate; (c) providing a transfer mechanism disposed in the substrate for receiving charge from the photo-sensitive area; (d) providing a vertical charge-coupled device for receiving charge from the transfer mechanism; (e) providing a gate dielectric spanning at least a portion of the vertical charge-coupled device; (f) providing a gate electrode spanning at least a portion of the vertical charge-coupled device; (g) providing an insulator spanning at least a portion of the vertical charge-coupled device having an opening therethrough; (h) providing a lightshield spanning at least a portion of the vertical charge-coupled device having an opening therethrough; and (i) inserting a plug through both the opening in the insulator and the opening in the lightshield; wherein the plug contacts the gate electrode so that the gate electrode is electrically connected to the lightshield.