Using high-k dielectrics in isolation structures method, pixel and imager device

  • US 20050151218A1
  • Filed: 01/12/2004
  • Published: 07/14/2005
  • Est. Priority Date: 01/12/2004
  • Status: Active Grant
First Claim
Patent Images

1. A pixel cell comprising:

  • a substrate;

    a photosensor in said substrate, said photosensor including a first conductivity area below a surface of said substrate and a second conductivity area at least between said first conductivity area and said substrate surface; and

    a first layer having an excess charge sufficient to create an electric field that affects said second conductivity area.

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