Semiconductor structure and manufacturing method thereof
First Claim
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1. A semiconductor structure, comprising:
- a substrate including a first side and a second side disposed opposite to the first side and configured to receive an electromagnetic radiation;
a barrier layer disposed over the second side of the substrate;
a grid disposed over the barrier layer;
a first color filter disposed over the barrier layer and laterally surrounded by and contacting the grid;
a second color filter disposed over the substrate and laterally surrounded by and contacting the grid, the second color filter also laterally surrounded by the barrier layer; and
a dielectric layer disposed between the barrier layer and the substrate,wherein the barrier layer comprises an upper surface overlapping the grid and an entirety of the first color filter and a bottom surface substantially level with a bottom surface of the second color filter, andwherein the dielectric layer comprises a first portion overlapping an entirety of a bottom surface of the first color filter and a second portion overlapping an entirety of a bottom surface of the second color filter, wherein non-visible light is allowed to pass from the second color filter to the substrate through the second portion of the dielectric layer.
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Abstract
A semiconductor structure includes a substrate including a first side and a second side disposed opposite to the first side and configured to receive an electromagnetic radiation, a barrier layer disposed over the second side of the substrate, a color filter disposed over the barrier layer, and a grid surrounding the color filter and disposed over the barrier layer, wherein the barrier layer is configured to absorb or reflect non-visible light in the electromagnetic radiation, and the barrier layer is disposed between the grid and the substrate.
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Citations
9 Claims
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1. A semiconductor structure, comprising:
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a substrate including a first side and a second side disposed opposite to the first side and configured to receive an electromagnetic radiation; a barrier layer disposed over the second side of the substrate; a grid disposed over the barrier layer; a first color filter disposed over the barrier layer and laterally surrounded by and contacting the grid; a second color filter disposed over the substrate and laterally surrounded by and contacting the grid, the second color filter also laterally surrounded by the barrier layer; and a dielectric layer disposed between the barrier layer and the substrate, wherein the barrier layer comprises an upper surface overlapping the grid and an entirety of the first color filter and a bottom surface substantially level with a bottom surface of the second color filter, and wherein the dielectric layer comprises a first portion overlapping an entirety of a bottom surface of the first color filter and a second portion overlapping an entirety of a bottom surface of the second color filter, wherein non-visible light is allowed to pass from the second color filter to the substrate through the second portion of the dielectric layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification