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Light emitting diode (LED) chip and manufacturing method of LED chip

A technology of LED chip and manufacturing method, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., and can solve problems such as not being able to meet the chip size

Inactive Publication Date: 2013-02-13
ENRAYTEK OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the increase in chip size also increases the difficulty of current expansion. In order to make the current evenly distributed, the electrode structure needs to be specially designed. At present, it is generally set as a comb-shaped electrode, which can only solve this problem to a certain extent, and cannot meet the further increase in chip size. needs

Method used

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  • Light emitting diode (LED) chip and manufacturing method of LED chip
  • Light emitting diode (LED) chip and manufacturing method of LED chip
  • Light emitting diode (LED) chip and manufacturing method of LED chip

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Embodiment Construction

[0031] It has been mentioned in the background art that due to the electrode structure of the existing LED chip, better current expansion can only be obtained to a certain extent, so that the current is evenly distributed. It is impossible to meet the demand for a further increase in chip size. Therefore, the present invention provides an LED chip and a manufacturing method thereof. The electrodes of the LED chip include a first electrode group and a second electrode group, and the electrodes of the first electrode group are evenly distributed on the tube core and the tube core. The corresponding areas of the cores are in contact, and the electrodes of the second electrode group are distributed on the vertices of the regular hexagon centered on the electrodes of the first electrode group. Such a structure can obtain sufficient current expansion and evenly distribute the current, so that the device can obtain good light emission Efficiency and uniform light output rate, and can...

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Abstract

The invention discloses a structure of a light emitting diode (LED) chip and a manufacturing method of the LED chip. An electrode of the LED chip comprises a first electrode group and a second electrode group, wherein the electrodes of the first electrode group are uniformly distributed on a tube core in a row way, and is contacted with the corresponding area of the tube core; the second electrode group is distributed on the vertex of a regular hexagon which is centered by the first electrode group, the full current expanding can be obtained by such structure, so that the current is uniformly distributed in the chip, and the device is obtained with good luminous efficiency and uniform light extracting rate, thereby meeting the requirement of further increasing the chip size.

Description

technical field [0001] The invention relates to the technical field of LED manufacturing, in particular to an LED chip and a manufacturing method thereof Background technique [0002] Light Emitting Diode (LED, Light Emitting Diode) is a semiconductor solid-state light-emitting device that uses a semiconductor PN junction as a light-emitting material to convert electricity into light. When a forward voltage is applied to both ends of the semiconductor PN junction, the electrons and holes injected into the PN junction recombine, and the excess energy is released in the form of photons. LED has the advantages of long life and low power consumption. With the maturity of technology, the requirements for LED power and brightness are getting higher and higher. With the development of epitaxial growth technology and multi-quantum well structure, the internal quantum efficiency of high-brightness LEDs has been greatly improved, and high-power chip technology has begun to focus on h...

Claims

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Application Information

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IPC IPC(8): H01L33/36H01L33/02H01L33/00
Inventor 毕少强
Owner ENRAYTEK OPTOELECTRONICS
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