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LED tester

A technology of light-emitting diodes and testing devices, which is applied in the direction of single semiconductor device testing, semiconductor/solid-state device testing/measurement, etc., and can solve the problems of complicated test items, time-consuming light-emitting diodes, etc.

Inactive Publication Date: 2006-08-30
YOUNGTEK ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with such one-by-one testing methods and complicated test items, it may be time-consuming and labor-intensive to pass a large number of light-emitting diodes through testing and screening, which obviously becomes a bottleneck in the manufacturing process.

Method used

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Embodiment Construction

[0025] In order for the examiner to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings of the present invention; however, the drawings are only for reference and illustration, and are not intended to limit the present invention.

[0026] The integrating sphere is a hollow spherical cavity. The number of input holes and output holes can be set on the spherical cavity according to the requirements. The inner cavity wall is generally coated with diffuse reflection properties. When the integrating sphere is used in practice, the measured beam It enters from the input hole, after the complex diffuse reflection of the cavity wall, the light energy absorbed by the cavity wall is determined according to the material of the coating, and the rest is emitted from the input hole and the output hole. Qualitative or quantitative analysis is carried out by collecting diffuse reflection light. T...

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Abstract

The invention relates to a mass producing light emitting diode testing device. It includes a control module, at least integrating sphere testing module, and at least a test board. The integrating sphere testing module, each of which has electrical output, light output and a light intake, connects to the control module. The testing board setting corresponds to the integrating sphere, and each testing board has several LEDs. The light intake has a preset area that could cover preset quantity of LEDs. The integrating sphere testing module contains several probes corresponding to the quantity of LEDs that could test the electric feature of LEDs one to one.'

Description

technical field [0001] The invention relates to a light-emitting diode testing device, in particular to a light-emitting diode testing device capable of mass production and improving production efficiency. Background technique [0002] Since light-emitting diodes began to be commercialized in the 1860s, due to their high shock resistance, long life, low power consumption, and low heat generation, their application range covers various items in daily life, such as home appliances and various Indicator light or light source of the instrument, etc. In recent years, due to the development of multi-color and high-brightness, the scope of application is more towards outdoor displays, such as large outdoor display boards and traffic lights. [0003] Light-emitting diodes use the P-type and N-type semiconductors to form a bonding interface. When the energy band structure is not applied with any voltage, the Fermi levels of the P-type and N-type semiconductors will be aligned with e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26H01L21/66
Inventor 赖灿雄陈桂标
Owner YOUNGTEK ELECTRONICS