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Stack-type image sensor

  • US 8,680,638 B2
  • Filed: 09/13/2010
  • Issued: 03/25/2014
  • Est. Priority Date: 02/24/2010
  • Status: Active Grant
First Claim
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1. An image sensor comprising:

  • at least two light-sensing layers stacked on different layers, each of the at least two light-sensing layers including at least one resistance change element, an electrical resistance of the at least one resistance change element changing according to an amount of incident light; and

    at least one filter layer, the at least one filter layer including a light absorption adjusting layer, whereinthe at least two light-sensing layers and the at least one filter layer are alternately disposed in a vertical direction, andthe light absorption adjusting layer includes a light absorption material having an absorption coefficient that varies according to a wavelength of light incident on the light absorption adjusting layer and a thickness of the light absorption adjusting layer.

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