An arc-shaped design structure of the multiplication region of a multi-tap electron multiplication charge-coupled device

A charge-coupled device and electron multiplication technology, which is applied in electrical components, color TV parts, TV system parts, etc., can solve the problems of increasing chip area and doubling area length, etc., to reduce chip size and increase multiplication performance, effect of reduced length

Active Publication Date: 2021-09-07
THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing high-speed EMCCD structure, the multiplication register is generally designed as a linear simple structure. When the multiplication series is high, the multiplication area of ​​the structure is longer, resulting in a multiplication of the chip area, which brings problems in packaging, refrigeration, etc. unfavorable factors

Method used

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  • An arc-shaped design structure of the multiplication region of a multi-tap electron multiplication charge-coupled device
  • An arc-shaped design structure of the multiplication region of a multi-tap electron multiplication charge-coupled device
  • An arc-shaped design structure of the multiplication region of a multi-tap electron multiplication charge-coupled device

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Embodiment 1

[0018] Such as figure 2 , when the multiplication region includes two arc-shaped structures, the two arc-shaped structures are connected end to end to form an S-shaped structure, one end of the S-shaped structure is connected to the horizontal register, and the other end is connected to the output amplifier.

[0019] Further, when multiple arc-shaped structures are included in the multiplication region, each arc-shaped structure is connected end to end, one end of the first arc-shaped structure is connected to the horizontal register, and one end of the last arc-shaped structure is connected to the output amplifier .

Embodiment 2

[0021] This embodiment improves on the technology of embodiment 1, such as image 3 , the plug further includes a straight structure, the straight structure is arranged between two arc structures or between the arc structure and the output amplifier.

[0022] The arc-shaped design structure of the multiplication region involved in the present invention is suitable for EMCCDs with multiple taps (that is, multiple output amplifiers). Generally, the arc-shaped design structure designed by the present invention is suitable for EMCCD structures with more than or equal to 4 output amplifiers.

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Abstract

The present invention relates to a charge-coupled device, in particular to an arc-shaped design structure of a multi-tap electron multiplying charge-coupled device multiplication area, including a storage area, a photosensitive area, a horizontal register, a multiplication register and an output amplifier, wherein the photosensitive area is connected to the storage area, A multi-tap structure, each storage area is provided with a horizontal register, the multiplication register is connected behind the horizontal register, and each multiplication register is connected to at least one output amplifier; the horizontal register and the multiplication register are designed as a face-to-face readout or back-to-back readout structure, The readout structure of the multiplication register is designed as a face-to-face readout or back-to-back arc; the invention not only ensures the normal transfer and multiplication of charges, but also effectively reduces the length of the multiplication area, thereby greatly reducing the chip size and improving the chip size. The space utilization rate reduces the cost; the number of multiplication series in the multiplication area can be greatly increased, the multiplication performance of the EMCCD can be improved, and the low-light detection ability of the EMCCD detector can be improved.

Description

technical field [0001] The invention relates to a charge-coupled device (Charged Coupled Device, CCD), in particular to an arc-shaped design structure of a multiplication region of a multi-tap electron multiplying charge-coupled device (Electron Multiplying Charged Coupled Device, EMCCD). Background technique [0002] EMCCD technology, also known as "on-chip gain" technology, uses the "impact ionization" effect of charges to multiply and amplify signal electrons. The difference from ordinary CCD is that a series of multiplying registers are added between the horizontal register and the sense amplifier. The detection sensitivity of the CCD device is improved. EMCCD has the characteristics of high detection sensitivity, high spatial resolution, wide response band range, high time resolution, flexible and convenient use, etc. It has a wide range of applications in low-light detection in aerospace, medicine, and industry. [0003] With the strong demand for EMCCD in high-speed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/372
CPCH04N25/71
Inventor 王小东汪朝敏白雪平
Owner THE 44TH INST OF CHINA ELECTRONICS TECH GROUP CORP
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