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A method for improving the operating efficiency of LED chips by improving the flipping method

A technology for LED chips and operations, applied in electrical components, circuits, semiconductor devices, etc., can solve problems such as low efficiency and cumbersome film turning operations, improve operating efficiency, reduce blue film consumption, and achieve obvious economic benefits. Effect

Active Publication Date: 2021-03-12
SHANDONG INSPUR HUAGUANG OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the cumbersome and low-efficiency problems of the existing LED chip flipping operation in the subsequent process, the present invention provides a method for improving the working efficiency of LED chips by improving the flipping method

Method used

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  • A method for improving the operating efficiency of LED chips by improving the flipping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for improving the operating efficiency of LED chips by improving the flipping method, comprising the steps of:

[0036](1) Cutting: The height of the full through-cut knife is 60 μm, the initial feed speed is 5 mm / s, the cutting speed is 30 mm / s, the width of the cutting slot is 25 μm, the depth of the full through-cut is to cut through the entire chip, and There are cut marks on the blue film.

[0037] (2) High-pressure cleaning: put the tube core obtained after cutting into the cleaning machine for high-pressure cleaning. The pure water cleaning time of the cleaning machine is 50s, and the nitrogen drying time is 35s. The compressed air and nitrogen supply pressure used are both 0.5Mpa .

[0038] (3) Expanding: After high-pressure cleaning, the chip is expanded. The expansion temperature is set to 70°C, the expansion time is 10s, the chip is preheated on the disk for 10s before expansion, and the size of the expansion ring is 6inch.

[0039] (4) Rotation: A...

Embodiment 2

[0046] According to the method for improving the operating efficiency of LED chips by improving the film turning method described in Example 1, the difference is that the full through-cut knife height in the step (1) is 70 μm, the initial knife feed speed is 3mm / s, and the cutting The speed is 40mm / s, the width of the cutting slit is 22μm, the depth of full penetration is to cut through the entire chip, and a cut mark is left on the blue film.

[0047] In step (2), set the pure water cleaning time of the washing machine to 40s, the nitrogen blowing time to 30s, and the compressed air and nitrogen supply pressures used are both 0.6Mpa.

[0048] In this embodiment, through the optimization and improvement of the operation process, the process of flipping the film twice is eliminated, and the optimization and improvement is to take the film directly from the crystal expansion ring, which greatly improves the operation efficiency by more than 80%.

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Abstract

The invention relates to a method for improving the working efficiency of LED chips by improving the film turning method, which includes: (1) cutting; (2) high-pressure cleaning; (3) film expansion: expanding the tube core after high-pressure cleaning, It is clamped into a plane by the expansion ring, and the die is adhered to the blue film with the front side facing up; (4) Rotation: keep the Y coordinate unchanged, and rotate the X coordinate clockwise by 180°; (5) Picture: According to the Mapping diagram of the test results, directly attach the back of the die to the computer screen for drawing; (6) Slicing: directly remove the die after the drawing from the crystal expansion ring, according to the drawing results of the Mapping diagram, along the The demarcation line drawn between different parameter gears is separated by inverted film, and divided into several separate blue films; (7) inspection; (8) storage. By optimizing and improving the film turning process, the invention greatly improves the operation efficiency, and further saves the single-piece cost of product raw materials.

Description

technical field [0001] The invention relates to a method for improving the operating efficiency of LED chips by improving the flipping method, and belongs to the technical field of LED chip processing. Background technique [0002] LED is a new light source for lighting in the 21st century. Under the same brightness, the power consumption of semiconductor lamps is only 1 / 10 of that of ordinary incandescent lamps, but the life span can be extended by 100 times. The LED device is a cold light source with high luminous efficiency, low working voltage, low power consumption, small size, flat packaging, easy to develop thin and light products, strong structure and long life. The light source itself does not contain harmful substances such as mercury and lead. No infrared and ultraviolet pollution, no pollution to the outside world during production and use. Therefore, semiconductor lamps have the characteristics of energy saving, environmental protection, and long life. Just lik...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/00H01L21/68H01L21/67
CPCH01L21/67011H01L21/68H01L33/0095
Inventor 郑军刘晓闫宝华
Owner SHANDONG INSPUR HUAGUANG OPTOELECTRONICS