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A ceramic substrate for LED

A technology of ceramic substrate and glass sintering aid, which is applied in the field of ceramic substrates for LEDs, can solve the problems of LED luminous efficiency attenuation, LED life impact, etc., and achieve the effects of optimizing physical and chemical properties, enhancing porcelain forming performance, and facilitating industrialization

Inactive Publication Date: 2017-02-22
GANSU RONGBAO IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the demand for LED lighting becomes more and more urgent, the heat dissipation problem of high-power LEDs has been paid more and more attention (too high temperature will lead to the attenuation of LED luminous efficiency); fatal impact

Method used

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Embodiment 3

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Abstract

The invention discloses a ceramic substrate for LED, which optimizes various raw materials in the LTCC preparation process, using aluminum nitride, boron nitride, aluminum oxide and beryllium oxide as the main raw materials. At the same time, glass sintering aids, copper and aluminum are added. Additives such as alloy nanoparticles, rare earth oxides, solvents, plasticizers, dispersants and binders further optimize the physical and chemical properties of the ceramic substrate. The thermal conductivity of the ceramic substrate in this application is greater than 400W / (m·k), and the bending resistance is The strength is greater than 300Mpa, and the dielectric constant is less than 2. At the same time, through conventional LTCC preparation methods, the main raw materials and additives can be prepared into ceramic substrates with high conductivity. The preparation process is simple and is conducive to industrialization.

Description

A ceramic substrate for LED technical field The invention belongs to the field of substrates for LEDs, in particular to a ceramic substrate for LEDs. Background technique As the fourth-generation lighting source, light-emitting diodes (LEDs) are valued by countries all over the world for their advantages such as low maintenance costs, long life, good shock resistance, low power consumption, and environmental friendliness. They are widely used in indicator lights, display screens, Backlighting, landscape lighting, transportation, etc., the market potential is huge. As the demand for LED lighting becomes more and more urgent, the heat dissipation problem of high-power LEDs has been paid more and more attention (too high temperature will lead to the attenuation of LED luminous efficiency); Fatal impact. At present, there are four kinds of ceramic heat dissipation substrates that are more common: direct copper clad ceramic board (DBC), direct copper clad substrate (DPC), hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/581C04B35/583C04B35/10C04B35/63C04B35/64
Inventor 张宝
Owner GANSU RONGBAO IND GRP
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