NDLI: The Ni-rich Part of the Ni-P-Sn System: Isothermal Sections

Content Provider	Springer Nature Link
Author	Schmetterer, C. Vizdal, J. Kroupa, A. Kodentsov, A. Ipser, H.
Copyright Year	2009
Abstract	Due to the use of phosphorus-containing nickel substrates in microelectronics, understanding of their reaction with Sn-based solders and knowledge of the corresponding reaction products is highly important. Therefore the ternary Ni-P-Sn system was investigated experimentally using x-ray diffraction (XRD), scanning electron microscopy (SEM) + energy dispersive x-ray spectroscopy (EDX)/wavelength-dispersive x-ray spectroscopy (WDS), and differential thermal analysis (DTA). Sample preparation was done by alloying powders of the starting components contained in alumina crucibles in evacuated quartz tubes. In this study the phase equilibria in the Ni-rich part of the ternary Ni-P-Sn system are described in the form of three partial isothermal sections at 550°C, 700°C, and 850°C. A total of five ternary compounds exist in the Ni-rich part, and the binary Ni$_{3}$Sn$_{2}$ HT phase was found to dissolve 17.6 at.% P at 850°C. This well agrees with literature reports, while a different extent and shape of the large homogeneity range of this phase were found. Between 850°C and 700°C phase equilibria change significantly due to the formation of the ternary phases Ni$_{10}$P$_{3}$Sn$_{5}$ (T3), Ni$_{13}$P$_{3}$Sn$_{8}$ (T4), and Ni$_{2}$PSn (T5).
Starting Page	2275
Ending Page	2300
Page Count	26
File Format	PDF
ISSN	03615235
Journal	Journal of Electronic Materials
Volume Number	38
Issue Number	11
e-ISSN	1543186X
Language	English
Publisher	Springer US
Publisher Date	2009-06-25
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lead-free solder phase diagram Ni-P-Sn phase equilibria isothermal section Solid State Physics Electronics and Microelectronics, Instrumentation Characterization and Evaluation of Materials Optical and Electronic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering

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