Patent ID: 7564079
Filing Date: 2009-07-21
Classification: H01L

Abstract:
1. A solid-state imager device, wherein pixels including photoelectric conversion elements are formed on a semiconductor substrate; incident light is made to be taken in from a rear surface side of said semiconductor substrate; an insulation film is formed on said rear surface side; a rear surface electrode is formed through said insulation film at least in the pixel array portion; and there is provided under a pad portion of said rear surface electrode with a leakage current inhibiting region for inhibiting a leakage current between the pad portion and said semiconductor substrate, wherein said rear surface electrode has a two-layer structure separated by an interlayer insulation film; said two-layer structure is connected by a contact portion; and said leakage current inhibiting region is formed by said interlayer insulation film under the pad portion of said rear surface electrode.