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Image sensor and related handheld device

An image sensor and handheld device technology, applied in the field of image sensors, can solve problems such as affecting the ability to sense fingerprints, and achieve the effect of improving optical crosstalk

Active Publication Date: 2019-04-16
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the image sensor is applied to optical under-display fingerprint sensing technology, optical crosstalk will affect the ability to sense fingerprints. Therefore, further improvements and innovations are required to overcome this problem

Method used

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  • Image sensor and related handheld device
  • Image sensor and related handheld device
  • Image sensor and related handheld device

Examples

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Embodiment Construction

[0033] The following disclosure provides various implementations or illustrations, which can be used to achieve different features of the disclosure. Specific examples of components and arrangements are described below to simplify the present disclosure. It will be appreciated that these descriptions are merely examples and are not intended to limit the disclosure. For example, in the description below, forming a first feature on or over a second feature may include some embodiments wherein the first and second features are in direct contact with each other; and may also include In some embodiments, additional components are formed between the first and second features, such that the first and second features may not be in direct contact. In addition, this disclosure may reuse reference symbols and / or labels in various embodiments. Such repetition is for the sake of brevity and clarity, and does not in itself represent a relationship between the different embodiments and / or ...

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Abstract

The present invention discloses an image sensor and a related handheld device. The image sensor comprises: a substrate doped to have a first conductivity type, the substrate having a front side and aback side, the back side being opposite to the other surface of the front side; a light collection region disposed in the substrate, adjacent to the front surface of the substrate, and configured to collect photogenerated charge carriers, wherein the light collection region is doped to have a second conductivity type opposite to the first conductivity type; and a mask disposed at the upper portionof the substrate, the mask having an opening through which light waves can reach the light collection region and be converted into the photogenerated charge carriers.

Description

technical field [0001] The invention relates to an image sensor, in particular to an image sensor capable of reducing optical crosstalk and a related handheld device. Background technique [0002] The semiconductor image sensor is used for sensing light waves, and the image sensor may generate interference signals between adjacent pixels, such as optical cross-talk, which deteriorates the performance of the image sensor. Additionally, components in the peripheral area of ​​the image sensor need to remain optically dark. Components located in the peripheral zone also suffer from poor performance and generate interference signals when they are exposed to light. [0003] When the image sensor is applied to the optical under-display fingerprint sensing technology, optical crosstalk will affect the ability to sense fingerprints. Therefore, further improvements and innovations are required to overcome this problem. Contents of the invention [0004] One of the objectives of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/146
CPCH01L27/14623H01L27/14643H01L27/1463H01L27/14678H01L27/14636G06V40/1318H01L27/1462H01L27/14627H10K59/65
Inventor 赵维民
Owner SHENZHEN GOODIX TECH CO LTD
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