IMAGE SENSOR WITH INLAID COLOR PIXELS IN ETCHED PANCHROMATIC ARRAY
First Claim
Patent Images
1. An image sensor, comprising:
- a substrate;
a pixel array of photosensitive elements disposed in the substrate;
one or more transparent inorganic layers disposed on the substrate;
a plurality of openings formed in the one or more transparent inorganic layers; and
a color filter array including a plurality of color filter elements situated in the openings, and a plurality of panchromatic filter elements formed by the one or more transparent inorganic layers situated between the openings.
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Abstract
An image sensor includes a substrate with a plurality of photosensitive elements. A transparent inorganic layer is situated over the substrate, and a plurality of openings is formed in the transparent inorganic layer. A color filter array has a plurality of panchromatic filter elements that are formed by the transparent inorganic layer, and a plurality of color filter elements are situated in the openings. The panchromatic filter elements and the color filter elements each include top surfaces that are essentially planar with the top surface of the transparent inorganic layer.
53 Citations
23 Claims
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1. An image sensor, comprising:
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a substrate; a pixel array of photosensitive elements disposed in the substrate; one or more transparent inorganic layers disposed on the substrate; a plurality of openings formed in the one or more transparent inorganic layers; and a color filter array including a plurality of color filter elements situated in the openings, and a plurality of panchromatic filter elements formed by the one or more transparent inorganic layers situated between the openings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of forming an image sensor, comprising:
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forming an array of openings in one or more transparent inorganic layers disposed on a substrate; depositing a plurality of color filter elements into the openings, wherein the remaining one or more transparent inorganic layers situated between the openings forms a plurality of panchromatic filter elements such that the color filter elements and the panchromatic filter elements form a color filter array having color filter elements and panchromatic filter elements. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An image capture device, comprising:
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a pixel array of photosensitive elements disposed in the substrate; one or more transparent inorganic layers disposed on the substrate; a plurality of openings formed in the one or more transparent inorganic layers; and a color filter array including a plurality of color filter elements situated in the openings, and a plurality of panchromatic filter elements formed by the one or more transparent inorganic layers situated between the openings. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification