一种高功率LED封装的热分析
马泽涛 ,朱大庆 ,王晓军
I华中科技大学1.激光技术国家重点实验室;2.微系统中心,湖北武汉430074)
摘 要: 建立了大功率发光二极管(I ED)器件的一种封装结构并利用有限元分析软件对其进行了热分析,比较了采用不同材料作为LED芯片热沉的散热性能 最后分析了LED芯片采用chip—on-board技术封装在新型高热导率复合材料散热板上的散热性能。
关键词: 高功率LED;芯片热沉;热管理;chip—on—board
中图分类号:TN312.8 文献标识码:A 文章编号:1001—5868(2006)01—0016—04
Thermal Analysis of High-power Light.emitting Diode Packages
MA Ze—tao ,ZHU Da-qing ,W ANG Xiao-jun
(1.National Laboratory of Laser Technology;2.Institute of Micr~ystems,
Huazhong University of Science and Technology,W uhan 430074,CHN)
Abstract: A novel package and thermal analysis based on FEA software for high power LED were presented.Heat dissipation of different die heat~sink materials was compared.Later。the heat performance of LED package utilizing chip。。on。_board technology on a novel composite materials with high thermoconductivity was studied.
Key words: high-power LED;heat sink;thermal management}chip—on—board
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