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Shaft connection type bar alignment and protection device and working method thereof

A protection device and connection type technology, applied in measuring devices, laser parts, instruments, etc., can solve problems such as easy falling and time-consuming winding, saving production costs, simplifying manufacturing processes, and improving testing. The effect of efficiency

Pending Publication Date: 2022-07-01
Shandong Huaguang Optoelectronics Co. Ltd.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] European patent EP1220394A2 discloses a testing device for an automatic bar testing machine, including a carrying device, a movable testing device and a detecting device. The carrying device is used to place the bar, and the movable testing device ensures that the semiconductor laser is tested in a relative direction. , the detection device is used to sample around the laser, this bar test detection device is faster, and reduces the error rate of the test, ensures the accuracy of the test results, and provides an optimized design for the automatic bar test machine Thoughts, but this design does not pay too much attention to the alignment and protection requirements of the carrying device, and there are still problems of time-consuming and easy to drop the upper swing bar

Method used

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  • Shaft connection type bar alignment and protection device and working method thereof
  • Shaft connection type bar alignment and protection device and working method thereof
  • Shaft connection type bar alignment and protection device and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A shaft-connected bar alignment and protection device such as Figures 1 to 2 As shown, it includes a vacuum loading platform 5 and an alignment / protection plate 1, the alignment / protection plate 1 is connected to the side of the vacuum loading platform 5 close to the bar placement area 3 through a rotating shaft 2, and the vacuum loading platform is fixed by bolts 8 On the cooling table, the bar placement area 3 is provided with a vacuum port, and the bar is adsorbed on the bar placement area 3 through the vacuum port. In the present invention, the vacuum loading platform is preferably provided with 4 sets of vacuum ports. The bar is fixed on the vacuum loading platform, and each vacuum port is opened or closed separately to facilitate the winding and automatic testing of the bar, and it is stable during the probe puncture test. It is a conventional technology to absorb the bar by vacuum during the test. It will not be repeated here;

[0042] The material of the align...

Embodiment 2

[0046] A shaft-connected bar alignment and protection device, as shown in Example 1, the difference is that the alignment / protection plate 1 is made of polyester elastomer, if it is a harder material, such as a metal material , it will cause irreversible damage to the bar surface and bar end face.

Embodiment 3

[0048] A shaft-connected bar alignment and protection device, as shown in Embodiment 1, the difference is that the alignment / protection plate 1 is in the width direction (ie, the two short sides), and away from the bar placement area There are protective outer edges in the direction of the long side (that is, the long side away from the bar placement area), and the other three sides except the side connected by the rotating shaft are provided with protective outer edges, and the height of the protective outer edge 6 is 0.5cm, In order to better avoid the risk of bar falling.

[0049] In the winding stage before the puncture test, use a suction pen to take out the bar from the material box and place it at the vacuum port. During this period, the suction pen has always turned on the adsorption function. When it is placed at the vacuum port, the suction pen has the adsorption function. When closed, the adsorption force disappears, which may cause the position of the bar to be sep...

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Abstract

The invention relates to a shaft connection type bar alignment and protection device and a working method, and belongs to the field of semiconductor testing, the shaft connection type bar alignment and protection device comprises a vacuum loading platform and an alignment / protection plate, and the alignment / protection plate is connected to one side, close to a bar placement area, of the vacuum loading platform through a rotating shaft; the alignment / protection plate is made of an elastic high polymer material, and the alignment / protection plate rotates to the horizontal direction through the rotating shaft to play a protection role in the winding stage before a bar is tested, so that the falling risk of the bar in the winding stage is reduced; in the bar alignment stage, the alignment / protection plate rotates to the vertical direction through the rotating shaft and is tightly attached to the vacuum loading platform, and the upper end of the alignment / protection plate is higher than the upper edge of the vacuum loading platform so that the bar can abut against the alignment / protection plate for alignment. According to the alignment / protection plate, one plate can be used for two purposes, the risk that bars fall off at a vacuum control opening during bar winding is reduced, and it can be guaranteed that the bars are overall parallel during bar alignment.

Description

technical field [0001] The invention relates to a shaft-connected bar alignment and protection device and a working method thereof, belonging to the technical field of semiconductor testing, in particular to the performance testing of a semiconductor laser manufacturing intermediate structure. Background technique [0002] The emergence of semiconductor lasers (LDs) has greatly promoted the development of laser technology. LDs are widely used in information technology, communications, medicine, military and other fields due to their remarkable advantages of light weight, small size, and high electro-optical conversion efficiency. In the process of rapid development of semiconductor lasers, how to ensure the reliability and repeatability of laser performance is a challenging issue. The automatic bar tester plays a crucial role in quality control and device reliability. effect. [0003] In the whole process from the wafer to the packaged laser, the cleavage of the wafer into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/00G01D21/02
CPCH01S5/0014G01D21/02
Inventor 王潇潇苏建陈康郑铁民徐现刚
Owner Shandong Huaguang Optoelectronics Co. Ltd.
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