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Integrated circuit, integrated circuit of image sensor and manufacturing method thereof

A technology of integrated circuits and color filters, applied in the integrated circuits of image sensors and their manufacture, in the field of integrated circuits, can solve problems such as optical image sensors not working well

Inactive Publication Date: 2017-06-20
TAIWAN SEMICON MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, optical image sensors do not work well if the image is out of focus

Method used

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  • Integrated circuit, integrated circuit of image sensor and manufacturing method thereof
  • Integrated circuit, integrated circuit of image sensor and manufacturing method thereof
  • Integrated circuit, integrated circuit of image sensor and manufacturing method thereof

Examples

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Embodiment Construction

[0016] The invention provides many different embodiments or examples for implementing the different features of the invention. Specific examples of components and arrangements are described below to simplify the present disclosure. Of course, these are examples only and are not intended to limit the invention. For example, in the following description, forming a first component over or on a second component may include embodiments in which the first component and the second component are formed in direct contact, and may also include embodiments in which the first component and the second component may be formed in direct contact. An embodiment in which an additional part is formed so that the first part and the second part may not be in direct contact. In addition, the present invention may repeat reference numerals and / or letters in various instances. This repetition is for the sake of simplicity and clarity and does not in itself indicate a relationship between the variou...

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Abstract

The invention relates to an image sensor with automatic focusing function and a related method. In some embodiments, the integrated circuit includes a photodiode array having a plurality of photodiodes disposed within a semiconductor substrate, and a plurality of first openings over the photodiode array and having a plurality of first openings extending vertically through the composite grid and A composite grid of multiple second openings. The integrated circuit also has an image sensing pixel array having a plurality of color filters disposed in the plurality of first openings. The integrated circuit also has a phase detection pixel array comprising a plurality of phase detection components smaller than the plurality of color filters and having a low refractive index (low n) material having a refractive index (n) less than Refractive indices of the plurality of color filters, wherein the phase detection components are disposed in the plurality of second openings. Embodiments of the present invention also provide an integrated circuit, an integrated circuit of an image sensor and a manufacturing method thereof.

Description

technical field [0001] Embodiments of the present invention relate to the field of semiconductors, and more particularly, to integrated circuits, integrated circuits of image sensors and manufacturing methods thereof. Background technique [0002] Optical imaging sensors are widely used in today's electronic devices, from digital cameras to other portable devices. An optical imaging sensor includes an array of sensing pixels and supporting logic to convert an optical image into digital data. The performance of optical image sensors may be improved by improving light sensing of individual pixels, crosstalk between pixels, and / or algorithms used by supporting logic circuits. However, optical image sensors don't work well if the image is out of focus. Therefore, phase detection pixels are included in the optical image sensor to automatically locate where the lens should focus, rather than blindly scanning the entire range to try to detect the correct position of the lens. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/146
CPCH01L27/14645H01L27/14605H01L27/14621H01L27/14627H01L27/14636H01L27/14685H01L27/14625H01L27/14683
Inventor 许文义洪丰基杨敦年周耕宇
Owner TAIWAN SEMICON MFG CO LTD
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