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US 2007/0164193 A1Published application
Image sensor and method for manufacturing the same
AssigneeMagnaChip Semiconductor, Ltd.
InventorWon-Ho Lee
Life of this patent
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Abstract
An image sensor includes a color filter, an over-coating layer formed on the color filter, and a medium layer formed on the over-coating layer, wherein the medium layer is configured with at least two medium layers of which refractive indices are different from each other.
Claims27
An image sensor comprising:
- a color filter;
- an over-coating layer formed on the color filter;
- and
- a medium layer formed on the over-coating layer, wherein the medium layer is configured with at least two medium layers of which refractive indices are different from each other.
1 more element
The image sensor of 5, wherein a lowermost layer of the medium layer is formed of a material having a refractive index higher than 1.5.
An image sensor comprising:
- color filters formed on a first region and a second region, respectively, wherein an incident angle of a light to the second region is greater than that of a light to the first region;
- an over-coating layer formed on the color filters;
- microlenses formed on the over-coating layer such that they are correspondent to the color filters, respectively;
- a medium layer covering the microlens in the second region, wherein the medium layer has a refractive index higher than that of air;
- and
- a capping layer covering a resultant structure including the medium layer.
3 more elements
An image sensor comprising:
- color filters formed on a first region and a second region, respectively, wherein an incident angle of a light to the second region is greater than that of a light to the first region;
- an over-coating layer formed on the color filters;
- microlenses formed on the over-coating layer such that they are correspondent to the color filters, respectively;
- a first medium layer covering the microlens in the second region, wherein the first medium layer has a refractive index higher than that of air;
- a second medium layer covering a resultant structure including the first medium layer, wherein the second medium layer has a refractive index lower than that of the first medium layer;
- and
- a capping layer formed on the second medium layer.
4 more elements
An image sensor comprising:
- color filters;
- an over-coating layer formed on the color filters;
- microlenses formed on the over-coating layer such that they are correspondent to the color filters, respectively;
- and
- a medium layer formed on the over-coating layer, wherein the medium layer is configured with at least two medium layers of which refractive indices are different from each other.
2 more elements
A method for manufacturing an image sensor, the method comprising:
- forming color filters on a first region and a second region, respectively, wherein an incident angle of a light to the second region is greater than that of a light to the first region;
- forming an over-coating layer on the color filters;
- forming microlenses on the over-coating layer such that they are correspondent to the color filters, respectively;
- forming a first medium layer covering the microlens, wherein the first medium layer has a refractive index higher than that of air;
- removing the first medium layer formed in the first region so that the first medium layer remains only in the second region;
- forming a second medium layer such that it covers a resultant structure including the first medium layer, wherein the second medium layer has a refractive index lower than that of the first medium layer;
- and
- forming a capping layer on the second medium layer.
5 more elements
Dependencies are inferred from the claim text.