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A flip-chip LED chip online detection device

A technology of LED chip and detection device, applied in the field of automatic online detection device, to achieve the effect of complex and precise composition and good stability of the whole machine

Active Publication Date: 2018-02-23
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides an online detection device for flip-chip LED chips, thereby solving the problem of intelligent, fast and accurate testing of flip-chip LED chips

Method used

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  • A flip-chip LED chip online detection device
  • A flip-chip LED chip online detection device
  • A flip-chip LED chip online detection device

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0027] In this embodiment, the flip-chip LED chip testing device includes a workbench module 1, a light receiving test component 2, a transport transmission component 3, a probe test platform 4, and a precision alignment system 5;

[0028] Wherein the workbench module 1 includes an object stage 11, a rotary shaft motor 12;

[0029] Wherein the light receiving test assembly 2 includes an integra...

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Abstract

The invention discloses an online flip LED chip detection device which comprises a workbench module, a transport conveying assembly, a light collection test assembly, a probe test platform and a precise alignment system. In the working process, the transport conveying assembly can transport a flip LED chip to be tested to a proper working region. The flip LED chip to be tested is made to be aligned with a light collection opening in the light collection test assembly. After the pose of the chip is adjusted, the probe test platform is started, a probe is made to make contact with the chip to be tested and powered, the chip is made to emit light, and thus the light collection test assembly can detect the chip. According to the mechanical structure of the online flip LED chip detection device, the problem that a flip LED chip electrode is not on the same side as a light-emitting face can be successfully solved, a precise image motion control technology is adopted, a high-speed precise test of the flip LED chip is achieved, and the detection efficiency of the chip is accelerated.

Description

technical field [0001] The invention belongs to the field of flip-chip LED chip detection, and more specifically relates to a fully automatic on-line detection device for flip-chip LED chips. Background technique [0002] Compared with traditional formal LED chips, flip-chip LED chips have improved light efficiency and production costs to varying degrees, and the importance of flip-chip LED chips has become increasingly prominent. At the same time, new requirements have been put forward for the corresponding detection technology and equipment. , The flip-chip LED chip online detection equipment is used to complete the detection of the photoelectric parameters of the flip-chip LED chip and generate a unified data file according to the parameter classification, and cooperate with the LED sorting equipment to realize the classification of the flip-chip LED chip and increase the added value of the product. [0003] Existing LED chip testing equipment is mostly aimed at front-mou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/26
Inventor 李斌宋宪振尹旭升陈腾飞汤瑞库卫东林康华贺松平
Owner HUAZHONG UNIV OF SCI & TECH
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