Production process of bipolar light-emitting diode

A technology of light-emitting diodes and production technology, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of crowded portable electric drill circuits, increase the difficulty of circuit design, and increase production costs, so as to reduce production costs and share Space, the effect of reducing the amount of usage

Inactive Publication Date: 2019-03-29
嘉兴实新企业服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In doing so, firstly, the components are increased and the production cost is increased, and secondly, the already limited circuit space of the portable hand drill is more crowded, which increases the difficulty of circuit design.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The production technology of embodiment 1 bipolar light-emitting diode, comprises the following steps:

[0022] 1. Chip fixation

[0023] First put LED chip fixing glue in the lamp cup of the lead bracket, use two blue light chips with a wavelength of 455-465nm, arrange them in the lamp cup of the lead bracket with opposite polarity directions, and then send them into a hot air circulation oven for baking at 150°C Curing in 80 minutes; the lead bracket is made of SPCC iron material, and the surface is silver-plated;

[0024] 2. Ultrasonic welding wire

[0025] After baking and solidifying the material, use an ultrasonic gold wire ball welding machine to connect the chip bonding pad with the bonding gold wire to the bracket welding wire area, and the two chips are connected to the two poles of the bracket in different polarity directions to form an electrical circuit;

[0026] 3. Apply fluorescent light

[0027] Pour the prepared inorganic YAG phosphor solution into t...

Embodiment 2

[0032] The production technology of embodiment 2 bipolar light-emitting diodes, comprises the following steps:

[0033] 1. Chip fixation

[0034] First, apply LED chip fixing glue in the lamp cup of the lead bracket, use two blue light chips with a wavelength of 455-465nm, arrange them in the lamp cup of the lead bracket with opposite polarity directions, and then send them into a hot air circulation oven for baking at 160°C Curing in 60 minutes; the lead bracket is made of SPCC iron material, and the surface is silver-plated;

[0035] 2. Ultrasonic welding wire

[0036] After baking and solidifying the material, use an ultrasonic gold wire ball welding machine to connect the chip bonding pad with the bonding gold wire to the bracket welding wire area, and the two chips are connected to the two poles of the bracket in different polarity directions to form an electrical circuit;

[0037] 3. Apply fluorescent light

[0038] Pour the prepared inorganic YAG phosphor solution in...

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PUM

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Abstract

The invention discloses a production process of a bipolar light-emitting diode. The production process comprises steps of wafer fixing, ultrasonic wire welding, fluorescence painting, lens packaging,molding pressing and the like. The made device includes two blue-light wafers, wherein one blue-light wafer is arranged with the front side upward and the other blue-light wafer is arranged reversely;and the two blue-light wafers are connected by a gold bonding wire and a pin. When a forward current or reverse current flows through the pin, one wafer emits light normally to excite YAG fluorescentpowder to emit white light. When the bipolar light-emitting diode is used for auxiliary illumination of a portable electric hand drill, the usage amount of component is reduced, so that the production cost is lowered; and the space occupied by the illumination assembly is reduced, so that the difficulty of the circuit design is simplified.

Description

technical field [0001] The invention relates to a production process of a light-emitting diode, in particular to a production process for making the light-emitting diode have bidirectional conduction and light-emitting characteristics. Background technique [0002] As LEDs, as a new generation of light sources, are increasingly used in people's work and life, their applications are becoming more and more extensive. Among them is a large number of auxiliary lighting for power tools, especially portable hand drills and screwdrivers. Since portable electric drills are mostly powered by DC, and the electric drill has forward and reverse functions, it is required that the auxiliary light source can normally emit light when the drill is forward and reverse. One-way conductivity is a remarkable characteristic of semiconductor components. Light-emitting LEDs for lighting also have one-way conductivity. If it is used for auxiliary lighting of a portable electric drill, it will emit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00
CPCH01L33/005
Inventor 吴强德
Owner 嘉兴实新企业服务有限公司
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