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Image sensor and image detector

An image sensor and pixel unit technology, which is applied to electric solid-state devices, semiconductor devices, electrical components, etc., can solve problems such as large image noise, and achieve the effects of suppressing noise, reducing capacitance, and reducing process difficulty and process cost.

Inactive Publication Date: 2019-03-05
上海瑞艾立微电子科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the image sensor in the prior art has the problem of large image noise

Method used

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  • Image sensor and image detector

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Embodiment Construction

[0032] It can be seen from the background art that the image sensor in the prior art has the problem of excessive signal noise. Now combine an image sensor to analyze the cause of its excessive signal noise:

[0033] refer to figure 1 and figure 2 , shows a schematic structural diagram of an image detector, where figure 1 is a three-dimensional schematic diagram of the image detector, figure 2 yes figure 1 The schematic diagram of the structure of the image sensor in the image detector shown in top view.

[0034] Such as figure 1 As shown, the image detector includes: a mechanical structure 11, in which only the attachment and detachment structure at the bottom of the image detector is shown in the figure, and the mechanical structure of the image detector also includes other parts on the side and top, But part of the mechanical structure at the top needs to leave a through hole for allowing signal light to be incident; the image sensor located on the mechanical struct...

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Abstract

Disclosed are an image sensor and an image detector. The image sensor comprises a substrate, a plurality of pixel units, and a plurality of noise reduction diodes, wherein the multiple pixel units arelocated on the substrate; and the multiple noise reduction diodes are connected with the pixel units in series in a one-to-one correspondence mode. By virtue of the noise reduction diodes which are connected with the pixel units in series, the capacitance on the connecting lines of the pixel units and the noise reduction diodes is lowered, thereby restraining noise and improving the signal-to-noise ratio.

Description

technical field [0001] The invention relates to the field of image acquisition, in particular to an image sensor and an image detector. Background technique [0002] The linear array image detector is an X-ray image detector with a linear array image sensor as the core. Under X-ray irradiation, the detector directly or indirectly converts X-ray photons into electrical signals, which are then detected by peripheral circuits and transformed by ADC to obtain digital images. The linear array image sensor uses photodiodes as the core, and these diodes are arranged in an array of one or several rows according to certain rules, and integrated with signal lines, bias voltage lines, etc. [0003] Almost all linear array sensors used in linear array image detectors are crystalline silicon linear array sensors at present. This type of linear array scanning detector is fabricated on a wafer substrate, and devices, wires, etc. are integrated on the substrate. The linear array detector...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/146
CPCH01L27/14609H01L27/14663
Inventor 郑娅洁朱虹凌严
Owner 上海瑞艾立微电子科技有限公司
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