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Uniform color filter arrays in a moat

  • US 7,675,080 B2
  • Filed: 01/10/2006
  • Issued: 03/09/2010
  • Est. Priority Date: 01/10/2006
  • Status: Active Grant
First Claim
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1. A pixel comprising:

  • a photo-conversion device formed within a substrate;

    a lens over said photo-conversion device;

    a plurality of fabricated layers between said photo-conversion device and lens, the plurality of fabricated layers comprising at least a planarization layer, which extends to other pixels and which supports the lens, and at least one other layer between the planarization layer and the substrate;

    a trench having a depth and being formed at a location between said planarization layer and photo-conversion device and in at least the at least one other layer; and

    a color filter having a uniform thickness recessed in said trench, the uniform thickness being less than the depth of said trench.

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