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Dispensing structure and process for improving reliability of LED lamp bead

A technology of LED lamp beads and reliability, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of affecting the life of LED devices, hindering commercial application, poor moisture resistance, etc., and achieves simple structure, reasonable setting, and increased reliability effect

Pending Publication Date: 2021-01-26
JIANGXI HONGLI TRONIC CO LTD
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  • Application Information

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Problems solved by technology

However, the moisture resistance of this type of material is generally poor, mainly because the Mn4+ ions on the surface of the material are prone to hydrolysis reaction with moisture in the air, resulting in material degradation and affecting the life of the final LED device, which also hinders its commercialization. Application's Biggest Challenge

Method used

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  • Dispensing structure and process for improving reliability of LED lamp bead
  • Dispensing structure and process for improving reliability of LED lamp bead
  • Dispensing structure and process for improving reliability of LED lamp bead

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Embodiment Construction

[0016] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0017] refer to Figure 3-4 , this specific embodiment adopts the following technical solutions: a glue dispensing structure to improve the reliability of LED lamp beads, including a bracket bowl cup 1, a chip 2, a bonding gold wire 3, a solid crystal glue 4, a white road 5, a fluorescent glue 6 and a white glue Glue 7, the inner bottom of the bracket bowl cup 1 is fixed with chip 2 through crystal-bonding glue 4; the positive and negative electrodes of the chip 2 are welded and connected to one end of the bonded gold wire 3; In the negative electrode area; the fluorescent glue 6 is filled in the bracket bowl, but it is not completely filled. After high temperature baking, the fluorescent glue 6 is not completely cured and is in a semi-solid state...

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Abstract

The invention discloses a dispensing structure and process for improving the reliability of an LED lamp bead, and the structure comprises a support bowl cup, a chip, a bonding alloy wire, a die bonding adhesive, a fluorescent adhesive, and a white adhesive, and the chip is fixed at the bottom of the interior of the support bowl cup through the die bonding adhesive. The cathode of the chip is connected to one side of the cathode of the bracket through a bonding gold wire on the other side; the anode of the chip is connected to one side of the anode of the bracket through a bonding gold wire atone side to form a series circuit; the support bowl cup is incompletely filled with fluorescent powder, and a layer of white glue is filled above the fluorescent powder. According to the invention, operation is convenient, design is effect and the process is simple; after the bowl cup is filled with a certain amount of fluorescent glue, the bowl cup is filled with a certain amount of white glue, Mn < 4 + > ions in the fluorescent glue are isolated from hydrolysis reaction with moisture in air, and the effects of improving the reliability of the LED lamp bead and prolonging the service life ofan LED device are achieved.

Description

technical field [0001] The invention relates to the technical field of LED packaging, in particular to a dispensing structure and process for improving the reliability of LED lamp beads. Background technique [0002] Due to the advantages of energy saving, environmental protection and good color rendering of LED lamps, LED lamps quickly occupy the market and develop rapidly. LED devices are now widely used in signal indication applications, display applications, lighting applications and other fields. With the rapid development of LED lights, upstream raw material manufacturers are also constantly developing and introducing new ones. Among them, several phosphors have attracted extensive attention due to their superior luminescent properties. In particular, as far as the liquid crystal display backlight is concerned, it requires that the luminescent materials (blue, green, red) have as narrow an emission bandwidth as possible and a suitable emission wavelength, so as to ob...

Claims

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Application Information

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IPC IPC(8): H01L33/48H01L33/52H01L33/56H01L33/50H01L33/62
CPCH01L33/48H01L33/502H01L33/52H01L33/56H01L33/62
Inventor 张明武李义园张路华左明鹏李希轮
Owner JIANGXI HONGLI TRONIC CO LTD
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