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Electrode structure of light-emitting diode

A technology of light-emitting diode and electrode structure, which is applied to circuits, electrical components, semiconductor devices, etc., can solve the problems of off-line, affecting the quality of light-emitting diodes, and the bonding force between bonding wires and electrodes cannot be greatly improved.

Active Publication Date: 2014-02-26
LIYANG TECH DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this electrode structure can increase the connection quality of the electrode to a certain extent, because the electrode is a planar electrode, after wiring, the connection between the bonding gold wire and the electrode is still limited to the plane range of the electrode, so the bonding gold wire and the electrode The binding force still cannot be greatly improved, and there is a possibility of off-line, which will affect the quality of the LED

Method used

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  • Electrode structure of light-emitting diode
  • Electrode structure of light-emitting diode
  • Electrode structure of light-emitting diode

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Embodiment Construction

[0012] see Figure 1-3 The electrode structure of the light emitting diode proposed by the present invention will be introduced.

[0013] see figure 1 and 2 , figure 1 It is a cross-sectional view of the electrode structure of a light-emitting diode, a bottom flat electrode 1, and the bottom surface of the bottom flat electrode 1 is a square; the bottom flat electrode 1 has: a first metal electrode 2, a second metal electrode 3 and a third metal electrode 4, wherein the bottom surface of the first metal electrode 2 is a square, the second metal electrode 3 is formed around the first metal electrode 2, and its bottom surface is also a square, and the third metal electrode 4 is formed around the second metal electrode 3, And its bottom surface is also square.

[0014] Wherein, the height of the first metal electrode 2 and the third metal electrode 4 is the same, the height of the second metal electrode 3 is less than the first metal electrode 2 and the third metal electrode...

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Abstract

The invention discloses an electrode structure of a light-emitting diode. The electrode structure comprises a bottom flat electrode; the bottom flat electrode is provided with a first metal electrode, a second metal electrode and a third metal electrode, wherein the second metal electrode is located between the first metal electrode and the third metal electrode.

Description

technical field [0001] The invention belongs to the technical field of light-emitting diodes, and in particular relates to an electrode structure of a light-emitting diode. Background technique [0002] A light-emitting diode is a light-emitting element made of semiconductor materials. The element has two electrode terminals. A voltage is applied between the terminals, and a very small current is passed through. The remaining energy can be excited and released in the form of light through the combination of electron holes. , which is the basic light-emitting principle of light-emitting diodes. [0003] The conventional structure of a light-emitting diode chip includes a semiconductor light-emitting structure that generates light radiation after being powered on, and an electrode that connects the semiconductor structure to an external power source. The focus of light-emitting diode chip design is to improve the light radiation efficiency of the semiconductor structure and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/38
CPCH01L33/387H01L33/40
Inventor 丛国芳
Owner LIYANG TECH DEV CENT