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Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging

Received: 22 April 2016     Published: 4 May 2016
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Abstract

The Cu/W85Cu/Cu composite was fabricated by pressureless infiltration and brazing method successfully. The microstructure and physical properties of Cu/W85Cu/Cu composites were investigated. The results show the interfacial region of Cu/W85Cu/Cu composites was consisted of Cu substrate, Cu–BAgCu28 interfacial layer, BAgCu28 layer, BAgCu28-Ni interfacial layer and W85Cu composite. Moreover, the interfacial microstructures investigated by SEM shows that that the electroplated Ni on the surface of W85Cu composites can improve the fillers wettability of the W85Cu composites. Further investigation reveals that the Cu/W85Cu/Cu composites possess relative low density (13.88g/cm3), excellent thermal management function as a result of high thermal conductivity up to 288.68 W/(m•K) and low coefficient of thermal expansion (7.55×10−6K−1) at room temperature. The above properties of composites successfully meet the requirement of electronic packaging. The shear strength test analysis shows that the Cu, filler (BAg72Cu), and electroplated Ni layer and W85Cu realized metallurgically joining.

Published in International Journal of Materials Science and Applications (Volume 5, Issue 2)
DOI 10.11648/j.ijmsa.20160502.18
Page(s) 84-88
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Cu/W85Cu/Cu Composites, Braze, Electronic Packaging

References
[1] I. F. Ataev, L. M. Dedegkaeva, A. R. Manukyants. Thermal and electrical conductivity of a copper–aluminum micro(nano) composite material [J]. Bulletin of the Russian Academy of Sciences: Physics,2015, 79:1380-1382.
[2] 1.Materials for thermal conduction [J]. Appl Therm Eng, 2001, 21(16): 1593-1605.
[3] Zweben C., High-performance thermal management materials [J]. Advanced packaging, 2006, 15: 20.
[4] Xiao Yang, Li Yunbo, Zhuo Mingchuan. Investigation of Microstructure and Properties of Cu/WCu/Cu Thin Sheet[J]. Rare Metal Materials and Engineering, 2012, 41: 1299-1301.
[5] Kim Y D, Oh N L, Oh S T, et al. Thermal conductivity of W-Cu composites at various temperatures [J]. Materials Letters, 2001, 51(5): 420-424.
[6] Li Daren. Research on densification of w-cu powders by hot extrusion and plastic deformation [D]. Harbin:Harbin Institute of Technology. School of Materials Science and Engineering, 2009: 87-92.
[7] WU Huabo. Research of tungsten skeleton for infiltrate copper [D]. Changsha:Central South University. Schools of Material Science and Engineering, 2009: 34–40.
[8] G Jiang, L Diao, K Kuang. Properties of WCu, MoCu, and Cu/MoCu/Cu High-performance Heat Sink Materials and Manufacturing Technologies [M]. Springer New York, 2013: 73-87.
[9] Jinbin Lu, Yunchao Mua, Xiangwei Luo. A new method for soldering particle-reinforced aluminum metal matrix composites [J]. Materials Science and Engineering B, 2012, 177: 1759– 1763.
[10] Zhao Pei, Guo Shibin, Liu, Guanghua1, Li Jiangtao. Fabrication of Cu-riched W-Cu composites by combustion synthesis and melt-infiltration in ultrahigh-gravity field [J]. Journal of Nuclear Materials. 2013, 441: 343-347.
[11] Li Daren. Research on densification of w-cu powders by hot extrusion and plastic deformation [D]. Harbin: Harbin Institute of Technology. School of Materials Science and Engineering, 2009: 87-92.
[12] Korthäuer, M. Effects of deformed volume, volume fraction and particle size on the deformation behavior of W/Cu composites [J]. Theoretical and Applied Fracture Mechanics, 2006, 46: 38-45.
[13] Zhu Mengjian, Li Shun, Zhao Xun, Xiong De-gan. Laser-weldable Sip−SiCp/Al hybrid composites with bilayer structure for electronic packaging [J]. Transactions of Nonferrous Metals Society of China, 2014, 24: 1032-1038.
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  • APA Style

    Jia Jin-Hao, Bai Shu-Xin, Xiong De-Gan, Chang Jin, Gao Ming-Qi. (2016). Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging. International Journal of Materials Science and Applications, 5(2), 84-88. https://doi.org/10.11648/j.ijmsa.20160502.18

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    ACS Style

    Jia Jin-Hao; Bai Shu-Xin; Xiong De-Gan; Chang Jin; Gao Ming-Qi. Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging. Int. J. Mater. Sci. Appl. 2016, 5(2), 84-88. doi: 10.11648/j.ijmsa.20160502.18

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    AMA Style

    Jia Jin-Hao, Bai Shu-Xin, Xiong De-Gan, Chang Jin, Gao Ming-Qi. Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging. Int J Mater Sci Appl. 2016;5(2):84-88. doi: 10.11648/j.ijmsa.20160502.18

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  • @article{10.11648/j.ijmsa.20160502.18,
      author = {Jia Jin-Hao and Bai Shu-Xin and Xiong De-Gan and Chang Jin and Gao Ming-Qi},
      title = {Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging},
      journal = {International Journal of Materials Science and Applications},
      volume = {5},
      number = {2},
      pages = {84-88},
      doi = {10.11648/j.ijmsa.20160502.18},
      url = {https://doi.org/10.11648/j.ijmsa.20160502.18},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160502.18},
      abstract = {The Cu/W85Cu/Cu composite was fabricated by pressureless infiltration and brazing method successfully. The microstructure and physical properties of Cu/W85Cu/Cu composites were investigated. The results show the interfacial region of Cu/W85Cu/Cu composites was consisted of Cu substrate, Cu–BAgCu28 interfacial layer, BAgCu28 layer, BAgCu28-Ni interfacial layer and W85Cu composite. Moreover, the interfacial microstructures investigated by SEM shows that that the electroplated Ni on the surface of W85Cu composites can improve the fillers wettability of the W85Cu composites. Further investigation reveals that the Cu/W85Cu/Cu composites possess relative low density (13.88g/cm3), excellent thermal management function as a result of high thermal conductivity up to 288.68 W/(m•K) and low coefficient of thermal expansion (7.55×10−6K−1) at room temperature. The above properties of composites successfully meet the requirement of electronic packaging. The shear strength test analysis shows that the Cu, filler (BAg72Cu), and electroplated Ni layer and W85Cu realized metallurgically joining.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Microstructure and Properties of Cu/W85Cu/Cu Composites for Electronic Packaging
    AU  - Jia Jin-Hao
    AU  - Bai Shu-Xin
    AU  - Xiong De-Gan
    AU  - Chang Jin
    AU  - Gao Ming-Qi
    Y1  - 2016/05/04
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmsa.20160502.18
    DO  - 10.11648/j.ijmsa.20160502.18
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 84
    EP  - 88
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20160502.18
    AB  - The Cu/W85Cu/Cu composite was fabricated by pressureless infiltration and brazing method successfully. The microstructure and physical properties of Cu/W85Cu/Cu composites were investigated. The results show the interfacial region of Cu/W85Cu/Cu composites was consisted of Cu substrate, Cu–BAgCu28 interfacial layer, BAgCu28 layer, BAgCu28-Ni interfacial layer and W85Cu composite. Moreover, the interfacial microstructures investigated by SEM shows that that the electroplated Ni on the surface of W85Cu composites can improve the fillers wettability of the W85Cu composites. Further investigation reveals that the Cu/W85Cu/Cu composites possess relative low density (13.88g/cm3), excellent thermal management function as a result of high thermal conductivity up to 288.68 W/(m•K) and low coefficient of thermal expansion (7.55×10−6K−1) at room temperature. The above properties of composites successfully meet the requirement of electronic packaging. The shear strength test analysis shows that the Cu, filler (BAg72Cu), and electroplated Ni layer and W85Cu realized metallurgically joining.
    VL  - 5
    IS  - 2
    ER  - 

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Author Information
  • College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China

  • College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China

  • College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China

  • College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China

  • College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China

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