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Scratch-proof edge protection device for LED (Light Emitting Diode) chip

A technology for LED chips and protection devices, applied in laser welding equipment, electrical components, circuits, etc., can solve the problems of increased cost, chip fragility, and reduced chip high-quality rate, so as to reduce the split rate, improve the high-quality rate, and reduce production. cost effect

Inactive Publication Date: 2014-06-18
YANTAI SMITHDE ELECTROMECHANICAL EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the LED lighting industry, improving the brightness of LED is the development direction of the LED lighting industry. At present, the back of the LED chip is often back-plated with metal to improve the brightness of the chip. In order to maximize the brightness, after thinning Scribing is often performed first, followed by plating on the back, and finally splitting, but the chip is easily broken after scribing, which reduces the high-quality rate of the chip and increases the cost

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  • Scratch-proof edge protection device for LED (Light Emitting Diode) chip
  • Scratch-proof edge protection device for LED (Light Emitting Diode) chip

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Embodiment Construction

[0009] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0010] An LED chip edge anti-scratch protection device, characterized in that the main body 1 of the edge anti-scratch protection device has a thickness of 220-300um, and the center of the edge anti-scratch protection device body 1 is provided with a circular truncated through hole. The diameter of the upper circle part 2 of the mesa-shaped hole is 2-4mm less than the diameter of the chip to be scribed, the diameter of the lower circle part 3 is 2-4mm larger than the diameter of the chip to be scribed, and the thickness of the lower circle part 3 is 150-200um.

[0011] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications...

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Abstract

The invention relates to a scratch-proof edge protection device for an LED (Light Emitting Diode) chip. The device is characterized in that a scratch-proof edge protection device body is 220-300[mu] m thick, a circular table type through hole is formed in the center of the scratch-proof edge protection device body, the diameter of the upper circle part of the circular table type through hole is less than that of a to-be-scratched chip by 2-4mm, and the diameter of the lower circle part of the circular table type through hole is greater than that of the to-be-scratched chip by 2-4mm and the lower circle part is 150-200 [mu]m thick. According to the device, the middle circular table type through hole is placed on the chip, and laser can not be scratched to the edge of the chip when the chip is scratched, so that the crack ratio of the chip can be reduced; the edge body is served as a wasted tube core, so that the yield of the chip can not be influenced, the yield of the chip can be improved, and the production cost can be reduced.

Description

technical field [0001] The invention relates to an anti-scratch protection device for the edge of an LED chip, which belongs to the field of LED production. Background technique [0002] With the development of the LED lighting industry, improving the brightness of LED is the development direction of the LED lighting industry. At present, the back of the LED chip is often back-plated with metal to improve the brightness of the chip. In order to maximize the brightness, after thinning Scribing is often performed first, followed by back plating, and finally splitting, but the chip is easily broken after scribing, which reduces the high-quality rate of the chip and increases the cost. Contents of the invention [0003] The invention aims at the deficiencies in the prior art, and provides an anti-scratch protection device for the edge of an LED chip. [0004] The technical solution of the present invention to solve the above technical problems is as follows: an LED chip e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/70B23K26/36H01L33/00
CPCB23K26/706B23K2101/40H01L33/00
Inventor 朱振明
Owner YANTAI SMITHDE ELECTROMECHANICAL EQUIP MFG