Fabrication and characterization of aluminum nitride polymer matrix composites with high thermal conductivity and low dielectric constant for electronic packaging

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• 作者：Yongcun Zhou^a ; ^b ; Hong Wang^a ; ^b ; ^{hwang@mail.xjtu.edu.cn} ; Lu Wang^a ; ^b ; Ke Yu^a ; ^b ; Zude Lin^a ; ^b ; Li He^a ; ^b ; Yuanyuan Bai^a ; ^b
• 关键词：Polymer&ndash ; matrix composites (PMCs) ; Electrical properties ; Thermal properties ; Modeling ; Scanning electron microscopy (SEM)
• 刊名：Materials Science and Engineering ; B
• 出版年：2012
• 期刊代码：76_09215107
• 类别：ch
• 出版时间：25 June, 2012
• 卷：177
• 期：11
• 页码：892-896
• 文件大小：1167 K

摘要

Polymethyl methacrylate (PMMA) composites filled with Aluminum Nitride (AlN) were prepared by powder processing technique. The microstructures of the composites were investigated by scanning electron microscopy techniques. The effect of AlN filler content (0.1-0.7 volume fraction (vf)) on the thermal conductivity, relative permittivity, and dielectric loss were investigated. As the vf of AlN filler increased, the thermal conductivity of the specimens increased. The thermal conductivity and relative permittivity of AlN/PMMA composites with 0.7 vf AlN filler were improved to 1.87 W/(m K) and 4.4 (at 1 MHz), respectively. The experimental thermal conductivity and relative permittivity were compared with that from simulation model.