Reading circuit structure of double-colour line-array infrared focus plane detector

A technology of infrared focal plane and readout circuit, which is applied in the direction of measuring circuit, using electric radiation detector for photometry, circuit, etc., to achieve the effect of reducing external leads, easy to use, and convenient for signal processing

Inactive Publication Date: 2005-07-13
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned difficulties and problems of the prior art, and provide a readout circuit of a two-color line array infrared focal plane detector, which is used for manufacturing multi-module, seamlessly spliced ​​two-color long line array infrared focal plane detectors. device provides a feasible implementation

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  • Reading circuit structure of double-colour line-array infrared focus plane detector
  • Reading circuit structure of double-colour line-array infrared focus plane detector
  • Reading circuit structure of double-colour line-array infrared focus plane detector

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Embodiment Construction

[0037] First see figure 1 , figure 1 It is a schematic diagram of the layout of the space structure of the readout circuit of the bichromatic line array infrared focal plane detector of the present invention. The structure of the present invention adopts infrared thin film material photosensitive element display and readout circuit to form a hybrid interconnection structure. The readout circuit is designed and manufactured using mature Si CMOS process. The whole circuit consists of four parts: input stage 1 of band 1; input stage 2 of band 2; shift register 3 composed of functional modules for signal transmission, switch timing control and signal readout of the circuit; bias voltage input, pulse input and signal Output lead key press point 4. In terms of spatial arrangement, the input stage 1 of the band one should be as close to the edge as possible to facilitate the splicing of longer line devices; the input stage 2 of the band two should also be arranged as close as poss...

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Abstract

A two-color linear column infrared focal plane detector readout circuit structure, including a band-one input stage, a band-two input stage, a shift register and an external lead key pressure point working together with the two input stages, and its characteristic is that it consists of two A series of switching tubes, photosensitive elements, gate control tubes, integral capacitors, reset switches and source limit followers are connected to form, and the photosensitive element array and each input end of the readout circuit are electrically connected through the interconnection of indium columns. The circuit structure of the present invention is compact, the working points of the photosensitive element array of the two bands, and the corresponding integral capacitors can be set independently, and the response signals of the two bands are output respectively, and the readout circuit made with this structure has a modular form, which can Realize the seamless splicing of multiple modules to form a two-color long-line infrared focal plane detector.

Description

technical field [0001] The invention relates to a dichroic line train infrared focal plane detector, in particular to a readout circuit structure of the dichroic line train infrared focal plane detector. technical background [0002] A two-color infrared focal plane detector is an infrared detector that responds to the same radiation field (including full-band information) and simultaneously in two specific different infrared bands (such as 2-3um band, 3-5um band). to obtain target-specific information at the same time. This plays an important role in infrared systems such as early warning, search, and tracking. Through the analysis of the spectral characteristics of the target, the ability to detect and identify the target can be improved, and the false target can be identified. Therefore, in the field of national defense, the dual-color infrared focal plane detection technology is an important technology. [0003] A linear infrared detector is an imaging device that form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00G01J1/42G01J1/44G01J1/46H01L31/00
Inventor 张勤耀
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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