散热问题影响到LED的光输出特性和器件的寿命，是大功率LED封装中的关键问题。金属芯的线路板（MCPCB）是LED白光照明系统中连接内外热通路的核心部件，关系到多芯片LED封装的结构和布局； LED外封装的可靠性-整个系统的电气连接，物理支撑，散热特性，封装的工艺流程以及成本，很大程度上取决于MCPCB。 本文剖析了几种比较有影响力的LED封装方案的结构和散热原理。从解决大功率发光二极管散热和材料热膨胀系数匹配的角度，提出了两种MCPCB方案 ...
李华平
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europepmc +1 more source
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Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiHan J, Cheng B.
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Sheng Wu Yi Xue Gong Cheng Xue Za ZhiBan Y, Mei Y, Chen B, Tang W, Kang H.
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Zhong Nan Da Xue Xue Bao Yi Xue BanHou Y, Zhang X, Liu J, Wu J.
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Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiHao DY, Song BQ, Dong LW, Cang ZZ.
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Zhong Nan Da Xue Xue Bao Yi Xue BanHu X, Guo H, Sun G, Wang X.
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Zhonghua Xue Ye Xue Za ZhiWang N, Xu ZL, Liu DH.
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