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矩形基板上LED芯片阵列热分析

DOI: 10.11830/ISSN.1000-5013.2013.03.0267

Keywords: 发光二极管, 阵列芯片, 多芯片封装, 过余温度

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Abstract:

分析偏心热源在矩形基板上热分布理论,利用局部模拟和理论论证的方法,获得m’×n’阵列中各芯片的质心温度一致的排布.利用这种排布方法,得出能求解芯片质心过余温度(CTEC)的简单关系式.同时,模拟了4×4, 6×6阵列芯片的过余温度分布的情况.结果表明:m’×n’阵列中LED芯片以芯片间距(a/m’,b/n’)在尺寸为a×b的矩形基板上对称排布时,各芯片的 CTEC都相同.

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