一种高散热性led芯片及其制备方法

High-heat radiation LED chip and manufacturing method thereof

Abstract

The invention discloses a high-heat radiation LED chip and a manufacturing method thereof. Through depositing a layer of a transparent heat conducting film on the surface of the LED chip, the heat conduction ability on the surface of the chip can be enhanced, the temperature of the chip is reduced, and uniformity of the temperature field on the surface of the chip can be improved. The transparent heat conducting film selects ZrO2 and Ag coating material. A physical vapor deposition method is adopted, a combination structure of a ZrO2 film layer, a Ag film layer and a ZrO2 film layer is sequentially grown on the substrate of the LED chip. The transparent heat conducting function on the surface of the chip can be realized with the combination film layer. Thus, the temperature of the LED chip can be effectively reduced, aging of the chip is delayed, temperature field gradient on the surface of the chip can be reduced, and light-emitting consistency of the surface of the chip can be improved.
本发明公开了一种高散热性LED芯片及其制备方法。通过在LED芯片表面沉积一层透明导热膜,增强芯片表面的热量传导能力,降低芯片温度,改善芯片表面温场的均匀性。该透明导热膜选用ZrO2和Ag镀膜材料,采用物理气相沉积方法,在LED芯片衬底上依次生长ZrO2膜层,Ag膜层和ZrO2膜层的组合结构,该组合膜层能够实现芯片表面的透明导热功能。本发明能够有效降低LED芯片温度,延缓芯片老化,能够减小芯片表面的温场梯度,改善芯片表面发光的一致性。

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Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    CN-101276860-AOctober 01, 2008神钛光学科技股份有限公司LED assembled body with ascendant light-permeating ratio and favorable heat radiation performance as well as assembled method
    CN-101410994-AApril 15, 2009京瓷株式会社发光装置
    CN-101924176-ADecember 22, 2010深圳大学一种发光二极管封装结构及其封装方法
    CN-102110756-AJune 29, 2011海洋王照明科技股份有限公司, 深圳市海洋王照明技术有限公司白光led及其封装方法
    CN-1508890-AJune 30, 2004通用电气公司Light source for extracting light from flat light source
    WO-2014021027-A1February 06, 2014日亜化学工業株式会社波長変換装置

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