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AUTO-FOCUS IMAGE SENSOR

  • US 20170047363A1
  • Filed: 08/10/2016
  • Published: 02/16/2017
  • Est. Priority Date: 08/11/2015
  • Status: Abandoned Application
First Claim
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1. An auto-focus image sensor, comprising:

  • a substrate with unit pixels, the substrate having a first surface and a second surface facing the first surface and serving as a light-receiving surface;

    a pixel separation part provided in the substrate to separate the unit pixels from each other;

    at least one pair of photoelectric conversion parts provided in each of the unit pixels of the substrate; and

    a sub-pixel separation part interposed between the at least one pair of the photoelectric conversion parts that are positioned adjacent to each other,wherein at least a portion of the pixel separation part comprises a material whose refractive index is different from that of the substrate, andthe sub-pixel separation part comprises a portion that is configured to allow photo charges generated in the at least one pair of the photoelectric conversion parts to be transmitted therethrough.

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