Scintillation screen coupling method

A technology of scintillation screen and coupling surface, applied in the field of scintillation screen coupling, can solve the problem of the scintillation screen being crushed, and achieve the effect of small curing shrinkage, reducing position change or tilt, and improving yield rate.

Pending Publication Date: 2021-12-24
上海烁泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to alleviate the problem of being crushed during the scintillation screen coupling process, this application provides a scintillation screen coupling method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] refer to figure 1 , a scintillation screen coupling method mainly includes the following steps:

[0061] S1:

[0062] S1.1: Clean the surface of the scintillation plate 100 to reduce the rate of defective products caused by the existence of impurities. The scintillation plate 100 is then placed in a vacuum chamber 400 . The vacuum chamber 400 is provided with a bottom groove 420 for fixing the position of the scintillation plate 100 , and the scintillation plate 100 can just be snapped into the bottom groove 420 .

[0063] S1.2: Paste the optical adhesive 200 on the center of the elastic seal 410 of the vacuum chamber 400 . The optical adhesive 200 is OCA optical adhesive with release paper on at least one side. It is worth noting that: the side of the optical adhesive 200 with the release paper faces the elastic sealing member 410 , and the OCA optical adhesive and the elastic sealing member 410 are separated by the release paper. For the convenience of operation,...

Embodiment 2

[0082] refer to figure 2 , a scintillation screen coupling method, the difference between this embodiment and embodiment 1 is:

[0083] S4:

[0084] S41 : place the sensor 300 in the bottom groove 420 of the vacuum chamber 400 , make its coupling face up and align with the center of the elastic seal 410 .

[0085] S42: Bond the scintillation plate 100 adhered with the optical glue 200 to the center of the elastic sealing member 410, and the side of the scintillating plate 100 bonded with the optical glue 200 faces away from the elastic sealing member 410. Tear off the release paper of Optical Adhesive 200.

[0086] The implementation sequence of the two steps of S41 and S42 can be exchanged or performed simultaneously. In this embodiment, S41 is performed first, and then S42 is performed.

[0087] S5:

[0088] Start the vacuum pump, and use the vacuum pump to evacuate the inside of the vacuum chamber 400 . Under the action of atmospheric pressure, the elastic sealing me...

Embodiment 3

[0098] see Figure 4 and Figure 5 , a scintillation screen coupling method, the difference between this embodiment and embodiment 2 is:

[0099] see Figure 4 , in S10, the coupling surface of the sensor 300 is cleaned, so as to reduce the increase of the defective product rate caused by the existence of impurities. Then the sensor 300 is placed in the bottom groove 420 of the vacuum chamber 400 . The coupling surface of the sensor 300 is aligned with the center of the elastic seal 410 .

[0100] see Figure 4 , in S2, use a vacuum pump to evacuate the inside of the vacuum chamber 400 to reduce the air pressure in the vacuum chamber 400 . The elastic seal 410 approaches the sensor 300 under the action of atmospheric pressure, bonding and pressing the optical adhesive 200 to the sensor 300 .

[0101] see Figure 5 , in S4:

[0102] S41: Remove the release paper on the side of the optical adhesive 200 away from the sensor 300 .

[0103] S42 : cleaning the scintillation...

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Abstract

The invention relates to a scintillation screen coupling method. The method mainly comprises the following steps that S1, a scintillation plate is placed in a vacuum chamber; optical cement is attached to an elastic sealing piece of the vacuum cavity, the optical cement and the scintillation plate are parallel and aligned, and the face, provided with the release paper, of the optical cement faces the elastic sealing piece; the edge of the elastic sealing piece is attached to the vacuum cavity in a sealed mode, and the side, away from the optical cement, of the elastic sealing piece is communicated with the atmosphere. S2, air in the vacuum chamber is pumped away to reduce the air pressure in the vacuum chamber, so that the elastic sealing piece gets close to the scintillation plate under the action of atmospheric pressure, and the optical cement is bonded and pressed on the scintillation plate; S3, the pressure in the vacuum chamber is recovered; S4, the optical cement is aligned and bonded on the sensor and the scintillation plate; and S5, the sensor and the scintillation plate are bonded and pressed in a vacuum environment. The problem that the scintillation screen is crushed in the coupling process is solved.

Description

technical field [0001] The present application relates to the field of scintillation screen production, in particular to a scintillation screen coupling method. Background technique [0002] In X-ray flat panel detectors, scintillation screen coupling is a very critical core technology in the detector assembly process. The scintillation screen coupling means that the scintillation screen and the sensor are tightly bonded together with optical glue. The quality of the scintillation screen coupling is directly related to It determines the performance of the detector. [0003] At present, the common optical glue coupling method is roller press coupling. After pasting the scintillation board and sensor panel with optical glue, use roller rolling press coupling. [0004] With regard to the related technologies mentioned above, the inventor believes that there is a defect due to uneven force, which may crush the scintillator panel and the sensor panel. Contents of the invention...

Claims

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Application Information

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IPC IPC(8): H01L27/146G01T1/20
CPCH01L27/1469H01L27/14663G01T1/20
Inventor 白超群焦启刚
Owner 上海烁泰科技有限公司
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