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Light-emitting diode chip, light-emitting diode and preparation method of light-emitting diode chip

A technology of light-emitting diodes and chips, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of low brightness of LED chips, achieve the effects of improving reflection ability, reducing preparation time, and facilitating maintenance

Pending Publication Date: 2021-03-16
ELEC TECH PHOTOELECTRIC TECH DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, such LED chips have the problem of low brightness

Method used

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  • Light-emitting diode chip, light-emitting diode and preparation method of light-emitting diode chip
  • Light-emitting diode chip, light-emitting diode and preparation method of light-emitting diode chip
  • Light-emitting diode chip, light-emitting diode and preparation method of light-emitting diode chip

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the present application clearer, the light-emitting diode chip, light-emitting diode and the method for preparing the light-emitting diode chip of the present application will be further described in detail through the following examples and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0056] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified. In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "lef...

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Abstract

The invention relates to a light-emitting diode chip, a light-emitting diode and a preparation method of the light-emitting diode chip. The light-emitting diode chip comprises a reflecting layer, a sacrificial layer, a substrate, an N semiconductor layer, a light-emitting layer and a P semiconductor layer which are sequentially stacked. The sacrificial layer comprises a first sacrificial layer anda second sacrificial layer which are arranged in a laminated mode, the first sacrificial layer is arranged between the reflecting layer and the second sacrificial layer, the second sacrificial layeris arranged between the first sacrificial layer and the substrate, and the refractive index of the first sacrificial layer is larger than that of the second sacrificial layer. The brightness of the light emitting diode chip provided by the invention is relatively high.

Description

technical field [0001] The present application relates to the field of light-emitting diodes, in particular to a light-emitting diode chip, a light-emitting diode and a method for preparing the light-emitting diode chip. Background technique [0002] Light Emitting Diode (LED) is a semiconductor component that can convert electrical energy into light energy. It has the characteristics of energy saving, environmental protection, long life, and small size. It is widely used in backlight, lighting, panels and other fields. In most applications, LED chips are only required to have a 180° light-emitting surface. In order to improve the luminous efficiency of light-emitting diodes, a reflective layer is usually prepared on the back of the LED chip. The reflective layer generally uses metal, Bragg reflector, or the superposition of the two to achieve high reflectivity. [0003] In the traditional technology, the manufacturing method of the LED chip is to sequentially form an N se...

Claims

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Application Information

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IPC IPC(8): H01L33/44H01L33/46H01L33/00
CPCH01L33/005H01L33/44H01L33/46
Inventor 刘珊珊纪思美陈顺利李士涛
Owner ELEC TECH PHOTOELECTRIC TECH DALIAN