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Accurate positioning method for LED chips

A LED chip, precise positioning technology, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problem of complex chip positioning process, achieve fast positioning speed, high positioning accuracy, and reduce production costs

Active Publication Date: 2016-03-30
HAIDIKE NANTONG OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of complex chip positioning process in the prior art, the purpose of the present invention is to provide a precise positioning method for LED chips that can achieve fast and precise positioning, thereby saving positioning time and reducing production costs

Method used

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  • Accurate positioning method for LED chips

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so that the protection scope of the present invention can be more clearly defined.

[0018] See attached figure 1 As shown, figure 1 The flow chart of the precise positioning method of the LED chip according to the present invention is described, including the following steps.

[0019] In the figure a, the cut LED chips are roughly arranged on the viscous UV film 1 by the sorting machine according to the test results after the test to form an array. Because it is only a preliminary arrangement, the arrangement accuracy is about ±1mil and ±3 °Within the range.

[0020] In the figure b, the prefabricated mesh positioning fixture 2 is covered on the UV film 1, so that the arranged LED chips enter the quadrilateral cells 3 of the m...

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Abstract

The invention discloses an accurate positioning method for LED chips, comprising the following steps: S1, coarsely arranging LED chips after cutting on a sticky UV film through a sorter according to a test result figure after test to form an array; S2, covering the UV film with a prefabricated net-form positioning fixture to make the arranged LED chips go into the quadrilateral cells of the net-form positioning fixture; S3, using a UV lamp to irradiate the UV film to make the UV film lose viscosity so as to release the LED chips going into the cells of the net-form positioning fixture; S4, moving the net-form positioning fixture as a whole a certain distance towards the X direction and the Y direction to make the LED chip in each cell close to the corner of the quadrangle; and S5, covering the surface of the net-form positioning fixture with a sticky film to make the LED chips accurately stuck and transferred onto the film for the subsequent process.

Description

Technical field [0001] The invention belongs to the field of optoelectronic light emitting device manufacturing. Background technique [0002] In the prior art, the chips from the sorting machine need to be accurately positioned. This is because the subsequent process accuracy is very high. For example, in the process of printing phosphors for CSP packaging, a small displacement will cause subsequent defective products. This precise positioning One method is to put the chips into the positioning carrier one by one, and then the process of placing the chips in the positioning carrier itself is a process with high precision, which is time-consuming and laborious, and after the subsequent process is completed, the chip is still needed Take it out of the vehicle. Summary of the invention [0003] In order to solve the problem of complicated chip positioning process in the prior art, the purpose of the present invention is to provide an accurate positioning method for LED chips that c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L21/68
CPCH01L21/68H01L33/005
Inventor 贾辰宇孙智江
Owner HAIDIKE NANTONG OPTOELECTRONICS TECH CO LTD
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