Real time synchrotron X-ray imaging for nucleation and growth of Cu6Sn5 in Sn-7Cu-0.05Ni high temperature lead-free solder alloys

Nogita, Kazuhiro, Yasuda, Hideyuki, McDonald, Stuart D. and Uesugi, Kentaro (2013) Real time synchrotron X-ray imaging for nucleation and growth of Cu6Sn5 in Sn-7Cu-0.05Ni high temperature lead-free solder alloys. Advanced Materials Research, 626 200-204. doi:10.4028/www.scientific.net/AMR.626.200

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Author Nogita, Kazuhiro
Yasuda, Hideyuki
McDonald, Stuart D.
Uesugi, Kentaro
Title Real time synchrotron X-ray imaging for nucleation and growth of Cu6Sn5 in Sn-7Cu-0.05Ni high temperature lead-free solder alloys
Formatted title
Real time synchrotron X-ray imaging for nucleation and growth of Cu6Sn5 in Sn-7Cu-0.05Ni high temperature lead-free solder alloys
Journal name Advanced Materials Research   Check publisher's open access policy
ISSN 1022-6680
ISBN 978-3-03785-571-3
Publication date 2013
Year available 2012
Sub-type Article (original research)
DOI 10.4028/www.scientific.net/AMR.626.200
Volume 626
Start page 200
End page 204
Total pages 5
Place of publication Stafa-Zurich, Switzerland
Publisher Trans Tech Publications
Collection year 2013
Language eng
Formatted abstract
This paper demonstrates how recent progress for real-time solidification observation at SPring-8 synchrotron has contributed to the development of Sn-7wt%Cu-0.05wt%Ni high temperature lead-free solder alloys. Lead-free solder alloys in the composition range Sn-0.7 to 7.6wt%Cu that consist of primary Cu6Sn5 in a eutectic Sn-Cu6Sn5 matrix have been proposed as solders for application at temperatures up to 400°C for the assembly high current semiconductors. It is shown that trace levels of Al have a marked effect on the solder microstructure and refine the size of the primary Cu6Sn5. The solidification pathway that leads to the refinement was observed in real-time using X-ray synchrotron observations.
Keyword Solidification
Synchrotron X-Ray Imaging
Lead-Free Solder
Cu6Sn5
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Online since December, 2012; Volume 626 - Advanced Materials Engineering and Technology: Selected, peer reviewed papers from the 2012 International Conference on Advanced Materials Engineering and Technology (ICAMET 2012), November 28-30, 2012, Penang, Malaysia

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2013 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 4 times in Scopus Article | Citations
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Created: Fri, 22 Mar 2013, 13:51:15 EST by Rose Clements on behalf of School of Mechanical and Mining Engineering