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Quantitative Microstructure Characterization of Ag Nanoparticle Sintered Joints for Power Die Attachment

Wang, Yun; Li, Jianfeng; Agyakwa, Pearl; Johnson, Christopher Mark; Li, Shuguang


Yun Wang

Jianfeng Li

Anne Mclaren Research Fellow

Professor of Advanced Power Conversion

Professor of Aerospace Composites


© 2014 Copyright © Taylor & Francis Group, LLC. The samples of sintered Ag joints for power die attachments were prepared using paste of Ag nanoparticles at 240°C and 5 MPa for 3 to 17 minutes. Their microstructural features were quantitatively characterized with scanning electronic microscopy, transmission electron microscopy, X-ray diffraction and image analysis method. The resulting normalized thickness, pore size and porosity decreased, and grain size increased with increasing the sintering time. A time dependence of the form t1/n with n close to 2 or 3 can be further derived for the kinetics of the thinning, densification and grain growth within the sintered Ag joints.


Wang, Y., Li, J., Agyakwa, P., Johnson, C. M., & Li, S. (2014). Quantitative Microstructure Characterization of Ag Nanoparticle Sintered Joints for Power Die Attachment. Molecular Crystals and Liquid Crystals, 604(1), 11-26.

Journal Article Type Article
Acceptance Date Jul 28, 2014
Online Publication Date Dec 15, 2014
Publication Date Dec 15, 2014
Deposit Date Sep 6, 2016
Publicly Available Date Sep 6, 2016
Journal Molecular Crystals and Liquid Crystals
Print ISSN 1542-1406
Electronic ISSN 1563-5287
Publisher Taylor & Francis Open
Peer Reviewed Peer Reviewed
Volume 604
Issue 1
Pages 11-26
Keywords Sintering of Ag nanoparticles; Power die attachment; Image analysis method; X-ray Scherrer method; Kinetics of sintering
Public URL
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Additional Information Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.; Aim & Scope:


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