HIGH PERFORMANCE IMAGE SENSOR
First Claim
Patent Images
1. An integrated chip, comprising:
- an image sensing element disposed within a pixel region of a substrate;
a plurality of conductive interconnect layers disposed within a dielectric structure arranged along a first side of the substrate; and
wherein a second side of the substrate comprises a plurality of interior surfaces arranged directly over the image sensing element, the plurality of interior surfaces respectively comprising a substantially flat surface that extends along a plane.
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Abstract
The present disclosure, in some embodiments, relates to an integrated chip. The integrated chip includes an image sensing element disposed within a pixel region of a substrate. A plurality of conductive interconnect layers are disposed within a dielectric structure arranged along a first side of the substrate. A second side of the substrate includes a plurality of interior surfaces arranged directly over the image sensing element. The plurality of interior surfaces respectively include a substantially flat surface that extends along a plane.
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Citations
20 Claims
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1. An integrated chip, comprising:
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an image sensing element disposed within a pixel region of a substrate; a plurality of conductive interconnect layers disposed within a dielectric structure arranged along a first side of the substrate; and wherein a second side of the substrate comprises a plurality of interior surfaces arranged directly over the image sensing element, the plurality of interior surfaces respectively comprising a substantially flat surface that extends along a plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An integrated chip, comprising:
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an image sensing element disposed within a substrate; a plurality of conductive interconnect layers disposed within a dielectric structure arranged along a first side of the substrate; and wherein a second side of the substrate comprises a plurality of interior surfaces arranged directly over the image sensing element and defining a plurality of topographical features, the plurality of interior surfaces comprising triangular shaped surfaces. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of forming an integrated chip, comprising:
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forming an image sensing element within a substrate; forming a masking layer on a first side of the substrate; performing a first wet etching process on the first side of the substrate with the masking layer in place; removing the masking layer; and performing a second wet etching process on the first side of the substrate, wherein the first wet etching process and the second wet etching process collectively form a plurality of topographical features respectively defined by a plurality of substantially flat interior surfaces that extend along planes that intersect at a point. - View Dependent Claims (20)
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Specification