The influence of 0-0.1 wt.% Ni on the microstructure and fluidity length of Sn-0.7Cu-xNi

Ventura, Tina, Gourlay, Christopher M., Nogita, Kazuhiro, Nishimura, Tetsuro, Rappaz, Michel and Dahle, Arne K. (2008) The influence of 0-0.1 wt.% Ni on the microstructure and fluidity length of Sn-0.7Cu-xNi. Journal of Electronic Materials, 37 1: 32-39. doi:10.1007/s11664-007-0281-7


Author Ventura, Tina
Gourlay, Christopher M.
Nogita, Kazuhiro
Nishimura, Tetsuro
Rappaz, Michel
Dahle, Arne K.
Title The influence of 0-0.1 wt.% Ni on the microstructure and fluidity length of Sn-0.7Cu-xNi
Journal name Journal of Electronic Materials   Check publisher's open access policy
ISSN 0361-5235
1543-186X
Publication date 2008-01-01
Sub-type Article (original research)
DOI 10.1007/s11664-007-0281-7
Open Access Status DOI
Volume 37
Issue 1
Start page 32
End page 39
Total pages 8
Place of publication New York, NY, United States
Publisher Springer
Language eng
Subject 861603 Integrated Circuits and Devices
091099 Manufacturing Engineering not elsewhere classified
Formatted abstract
Three binary Sn-Cu solder alloys of near-eutectic composition have been directionally solidified at different growth rates. The competition between primary tetragonal Sn cells/dendrites and eutectic is interpreted with the coupled zone concept. It is also found that Sn-Cu is a weakly irregular eutectic system with Cu6Sn5 leading the eutectic, but two different eutectic morphologies (coarse and fine) form simultaneously during eutectic growth. At higher growth rates, the eutectic interface breaks down into a cellular eutectic with the fine eutectic in the centre of the cells and the coarse one at the cell boundaries. This is explained by the segregation of Pb impurities ahead of the eutectic interface.
Keyword Dendritic growth
Eutectic
Lead-free solder
Solidification
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 39 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 26 Mar 2009, 00:42:36 EST by Sally Beard on behalf of Materials