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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

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


Authors

Yun Wang

Jianfeng Li

Profile image of PEARL AGYAKWA

PEARL AGYAKWA PEARL.AGYAKWA@NOTTINGHAM.AC.UK
Anne Mclaren Research Fellow

MARK JOHNSON MARK.JOHNSON@NOTTINGHAM.AC.UK
Professor of Advanced Power Conversion

SHUGUANG LI shuguang.li@nottingham.ac.uk
Professor of Aerospace Composites



Abstract

© 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.

Citation

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. https://doi.org/10.1080/15421406.2014.967647

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 and Francis
Peer Reviewed Peer Reviewed
Volume 604
Issue 1
Pages 11-26
DOI https://doi.org/10.1080/15421406.2014.967647
Keywords Sintering of Ag nanoparticles; Power die attachment; Image analysis method; X-ray Scherrer method; Kinetics of sintering
Public URL https://nottingham-repository.worktribe.com/output/740902
Publisher URL http://www.tandfonline.com/doi/abs/10.1080/15421406.2014.967647
Additional Information Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.; Aim & Scope: http://www.tandfonline.com/action/journalInformation?show=aimsScope&journalCode=gmcl20
Contract Date Sep 6, 2016

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