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A method and device for calibrating the position of LED test needles

A correction method and a correction device technology, which are applied in the direction of measuring devices, single semiconductor device testing, measuring electricity, etc., can solve problems such as low efficiency, and achieve the effect of improving efficiency

Active Publication Date: 2019-04-26
SHENZHEN SIDEA SEMICON EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This test is inefficient

Method used

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  • A method and device for calibrating the position of LED test needles
  • A method and device for calibrating the position of LED test needles
  • A method and device for calibrating the position of LED test needles

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Embodiment Construction

[0046] The preferred embodiments of the invention will be further described in detail below.

[0047] Such as Figures 6 to 8 As shown, a device for correcting the needle position for LED testing includes: an image scanning unit 7, a control unit, a working platform 5, a first LED probe 1, a second LED probe 2, a first moving LED probe 41, a second Move the LED probe 3.

[0048] The working platform 5 is used to carry the LED chip board, and can drive the LED chip board to move in X, Y and Z directions under the drive of the working platform driving device 6 .

[0049] The image scanning unit 7 is used to identify and record the position of each die on the LED die board and the positions of the two electrodes on each LED die. Wherein, the LED chip board is cut to obtain a plurality of separated LED chips.

[0050] The first LED probe 1 and the second LED probe 2 do not have a motor drive device, and the positions of the two are generally fixed, while the first mobile LED pr...

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Abstract

The invention provides an LED test bar position correcting method and device. The method comprises the steps that the position of two electrodes on each LED core particle on an LED core particle plate is identified and recorded; the first LED core particle is used as a standard to calculate the position deviation between two electrodes of the second LED core particle adjacent to the first LED core particle and the first LED core particle; according to the position of two electrodes of the first LED core particle, a work platform carrying the LED core particle plate is moved, so that two electrodes of the first LED core particle are respectively aligned with a first LED probe and a second LED probe; according to the position deviation, a first movement LED probe and a second movement LED probe are moved, so that two electrodes of the second LED core particle are respectively aligned with the first movement LED probe and the second movement LED probe; the work platform is driven to rise in a Z direction, so that two electrodes of the first LED core particle and two electrodes of the second LED core particle respectively contact the corresponding LED probes.

Description

【Technical field】 [0001] The invention relates to a method and a device for correcting the position of an LED testing needle. 【Background technique】 [0002] Existing LED test needle sticking position correction devices often only have a pair (two) of LED probes, and when performing needle sticking tests on LED chips, only one LED chip can be tested at a time. This test is inefficient. 【Content of invention】 [0003] In order to improve the testing efficiency of LED chips, it is necessary to add more pairs of LED probes, but after research, it is found that after adding LED probe pairs, there are the following problems: [0004] Such as figure 1 As shown, it is the state of each chip after the LED chip board is cut in an ideal state. The existing LED test needle position correction device only has a pair (two) manually adjusted LED probes (without motor drive ), each time only one LED chip can be tested for needle sticking. At this time, the mobile working platform 5 ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/26G01R1/073
CPCG01R31/2601
Inventor 刘振辉刘子敏沈杰王胜利胡泓
Owner SHENZHEN SIDEA SEMICON EQUIP