Thermal and structural characteristics of a eutectic Au-Ge alloy

Dragana Živković; Diana Ćubela; Dragan Manasijević; Ljubiša Balanović; Almaida Gigović-Gekić; Lidija Gomidželović; Nada Štrbac; Aleksandra Mitovski

doi:10.3139/120.110975

Published by De Gruyter January 27, 2017

Thermal and structural characteristics of a eutectic Au-Ge alloy

Thermische und strukturelle Eigenschaften einer eutektischen Au-Ge-Legierung

Dragana Živković , Diana Ćubela , Dragan Manasijević , Ljubiša Balanović , Almaida Gigović-Gekić , Lidija Gomidželović , Nada Štrbac and Aleksandra Mitovski

From the journal Materials Testing

https://doi.org/10.3139/120.110975

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Abstract

The Au-Ge alloy is useful for bonding applications in microelectronic and optoelectronic packages. Also, recent investigations show that Au-Ge system could present a lead-free solder candidate. The results of characterization of the eutectic alloy from binary Au-Ge system are presented in this paper. Experimental research was done using thermal analysis (differential thermal analysis, DTA) and structural investigation by light optic microscopy (LOM) and scanning electron microscopy with EDS (SEM-EDS). The eutectic temperature of 359 °C was detected using thermal analysis, while eutectic structure was confirmed using microstructural analysis. Obtained results were compared with recent literature references and good mutual agreement was noticed.

Kurzfassung

Die für diesen Beitrag untersuchte Au-Ge-Legierung ist nützlich für Lötanwendungen von mikorelektronischen und optoelektronischen Einheiten. Außerdem haben kürzliche Untersuchungen gezeigt, dass das Gold-Germanium-System als bleifreie Lote eingesetzt werden könnte. In dem vorliegenden Beitrag werden die Ergebnisse der Charakterisierung einer eutektischen Legierung des Au-Ge-Systems vorgestellt. Hierzu wurden experimentelle Foschungsarbeiten durchgeführt, in denen die thermische Analyse (Differentialthermoanalyse – DTA) und strukturelle Untersuchungen mittels Lichtmikroskopie und Rasterelektronenmikroskopie zur Anwendung kamen. Mittels thermischer Analyse wurde die eutektische Temperatur von 359 °C ermittelt, während die Struktur des Eutektikums mittels mikrostruktureller Analyse bestätigt wurde. Die Ergebnisse wurden mit Veröffentlichungen aus der letzten Zeit verglichen und es zeigte sich eine gute beidseitige Übereinstimmung.

*Correspondence Address, Dr.-Ing. Aleksandra Mitovski, Technical Faculty in Bor, VJ 12, University of Belgrade, 19210 Bor, Serbia, E-mail: amitovski@tfbor.bg.ac.rs

Prof. Dr.-Ing. Dragana Živković (1965–2016), was Full Professor in the Department for Metallurgical Engineering, Technical Faculty in Bor, University of Belgrade, Serbia. She finished her PhD in 1995. She was author and co-author of more than 300 publications and participated in more than 20 national and 19 international projects. She was also a full member of Serbian Academy of Engineering Sciences since 2015.

Prof. Dr.-Ing. Diana Ćubela, born 1964, is Associate Professor in the Faculty for Metallurgy and Materials at University in Zenica, Bosnia and Herzegovina. She finished her PhD in 2005. She is author and co-author of three papers in SCI journals and more than 20 papers in other journals and conference proceedings books. She participated in 10 projects and published four university textbooks.

Prof Dr.-Ing. Dragan Manasijević, born 1975, is Associate Professor in the Department for Metallurgical Engineering, Technical Faculty in Bor, University in Belgrade, Serbia. He finished his PhD in 2007. He is author and co-author of over 50 papers in international and national journals, over 40 papers at symposiums and co-author of two university textbooks. He has been awarded by the Serbian Chemical Society as the best young scientist in 2009.

Assistant Prof. Dr.-Ing. Ljubiša Balanović, born 1975, works in the Department for Metallurgical Engineering, Technical Faculty in Bor, University in Belgrade, Serbia. She finished her PhD in 2013. She is author and co-author of more than 25 scientific papers in national and international journals. She oriented her scientific activities and investigations towards the development of lead-free solders.

Assistant Prof. Dr.-Ing. Almaida Gigović-Gekić, born 1976, works in the Faculty for Metallurgy and Materials, University in Zenica, Bosnia and Herzegovina. She finished her PhD in 2010. She is author and co-author of 5 papers in JCR listed journals and of more than 20 papers in national and international conferences. She participated in four national and international projects.

Dr.-Ing. Lidija Gomidželović, born 1974, is a researcher at the Mining and Metallurgy Institute in Bor, Serbia. She defended her PhD thesis at the Technical Faculty in Bor, University in Belgrade in 2012. She has published over 60 papers in national and international journals and international and national scientific conferences and symposiums.

Prof. Dr.-Ing. Nada Štrbac, born 1964, is Full Professor in the Department for Metallurgical Engineering, Technical Faculty in Bor, University in Belgrade, Serbia. He finished his PhD in 1996. He is author and co-author of 51 papers in JCR listed journals and published also two monographs, three university books, 36 papers in national journals and over 100 communications at international and national meetings. He has been manager of two national projects.

Assistant Prof. Dr.-Ing. Aleksandra Mitovski, born 1977, works in the Department for Metallurgical Engineering, Technical Faculty in Bor, University in Belgrade, Serbia. She finished her PhD thesis in 2015. She is author and co-author of more than 50 scientific papers and more than 100 proceedings papers. She participated in seven national and international projects.

References

1 V.Chidambaram, J.Hald, J.Hattel: Development of Au-Ge based candidate alloys as an alternative to high-lead content solders, Journal of Alloys and Compounds490 (2010), No. 1–2, pp. 170–17910.1016/j.jallcom.2009.10.108Search in Google Scholar

2 V.Chidambaram, H.Yeung, G.Shan: Reliability of Au-Ge and Au-Si eutectic solder alloys for high-temperature electronics, Journal of Electronic Materials41 (2012), No. 8, pp. 2107–211710.1007/s11664-012-2114-6Search in Google Scholar

3 C.Leinenbach: Au-Ge based alloys for novel High-T lead free solder materials – Fundamentals and applications, R.Gourley (Ed.): Proceedings of the 5^th International Brazing and Soldering Conference, ASM International, Las Vegas, USA (2012), pp. 196–201Search in Google Scholar

4 J.Hager, S.Howard, J.Jones: Thermodynamic properties of the liquid Ge-Cu and Ge-Au systems by mass spectrometry, Metallurgical Transactions4 (1973), No. 10, pp. 2383–238810.1007/BF02669379Search in Google Scholar

5 B.Predel, H.Bankstahl: Thermodynamic properties of liquid silver-germanium, silver-silicon, gold-germanium, and gold-silicon alloys, Journal of the Less Common Metals43 (1975), No. 1–2, pp. 191–20310.1016/0022-5088(76)90116-8 (in German)Search in Google Scholar

6 G.Schluckebier, B.Predel: Investigation on the structure of metastable phases in the gold-germanium system, Zeitschrift für Metallkunde71 (1980), pp. 535–541 (in German)10.1515/ijmr-1980-710808Search in Google Scholar

7 S.Hassam, M.Gaune-Escard, J. P.Bros, M.Hoch: Enthalpies of formation of the Ag-Au-Si, Ag-Au-Ge, and Ag-Au-Sn ternary liquid alloys; Experimental determinations and application of the Hoch-Arpshofen model, Metallurgical Transactions A19 (1988), pp. 2075–208910.1007/BF02645210Search in Google Scholar

8 P.Y.Chevalier: A thermodynamic evaluation of the Au-Ge and Au-Si systems, Thermochimica Acta141 (1989), pp. 217–22610.1016/0040-6031(89)87056-XSearch in Google Scholar

9 J.Wang, C.Leinenbach, M.Roth: Thermodynamic modeling of the Au-Ge-Sn ternary system, Journal of Alloys and Compounds481 (2009), No. 1–2, pp. 830–83610.1016/j.jallcom.2009.03.114Search in Google Scholar

10 J.Wang, C.Leinenbach, M.Roth: Thermodynamic description of the Au-Ge-Sb ternary system, Journal of Alloys and Compounds485 (2009), No. 1–2, pp. 577–58210.1016/j.jallcom.2009.06.030Search in Google Scholar

11 J.Wang, Y. J.Liu, C. Y.Tang, L. B.Liu, H. Y.Zhou, Z. P.Jin: Thermodynamic description of the Au-Ag-Ge ternary system, Thermochimica Acta512 (2011), No. 1–2, pp. 240–24610.1016/j.tca.2010.11.003Search in Google Scholar

12 S. C.Agarwal, H.Herman: Phase decomposition in liquid-quenched eutectic Au-Ge alloy, Journal of Materials Science13 (1978), No. 4, pp. 916–91910.1007/BF00570534Search in Google Scholar

13 Au-Ge, Bulletin of Alloy Phase Diagrams1 (1980), No. 2, pp. 119–12010.1007/BF02881211Search in Google Scholar

14 R. P.Elliott, F. A.Shunk: The Au-Ge System (Gold-Germanium), Bulletin of Alloy Phase Diagrams1 (1980), No. 2, pp. 51–5410.1007/BF02881185Search in Google Scholar

15 F.Sommer: Association model for the description of thermodynamic functions of liquid alloys – 2. Numerical treatment and results, Zeitschrift für Metallkunde73 (1982), No. 2, pp. 77–86 (in German)Search in Google Scholar

16 G. V.Chipenko, V. F.Degtyareva: Preparation of Hume-Rothery phases in Ag-Ge and Au-Ge alloys under high pressures, Soviet Physics – Solid State26 (1984), No. 4, pp. 735–736 (English translation)Search in Google Scholar

17 Au-Ge, Bulletin of Alloy Phase Diagrams5 (1984), No. 6, pp. 627–62810.1007/BF02868329Search in Google Scholar

18 Y.Eichhammer, J.Roeck, N.Moelans, F.Iacopi, B.Blanpain, M.Heyns: Calculation of the Au-Ge phase diagram for nanoparticles, Archives of Metallurgy and Materials53 (2008), No. 4, pp. 1133–1139Search in Google Scholar

19 H.Okamoto, T. B.Massalski: The Au-Ge (Gold-Germanium) System, Bulletin of Alloy Phase Diagrams5 (1984), No. 6, pp. 601–61010.1007/BF02868323Search in Google Scholar

20 B.Predel: Au-Ge (Gold-Germanium), O.Madelung (Ed.): Ac-Au – Au-Zr, Landolt-Börnstein – Group IV Physical Chemistry5A (1991), Springer, Berlin, Germany, pp. 1–410.1007/b20007Search in Google Scholar

21 B.Predel: Au-Ge, P.Franke, D.Neuschütz (Ed.): Binary Systems: Part 1– Elements and Binary Systems from Ag-Al to Au-Tl, Landolt-Börnstein – Group IV Physical Chemistry19B1 (2002), Springer, Berlin, Germany, pp. 273–27510.1007/b68942Search in Google Scholar

22 A. T.Dinsdale: SGTE data for pure elements, Calphad15 (1991), No. 4, pp. 317–42510.1016/0364-5916(91)90030-NSearch in Google Scholar

23 N.Saunders, A. P.Miodownik: CALPHAD (CALculation of PHAse Diagrams): A Comprehensive Guide, Pergamon, New York, USA (1998)Search in Google Scholar

24 L.Gomidželović, D.Živković, N.Talijan, V.Ćosović, L.Balanović: Characterization of Au-Ga alloys with low gold content, Materials Testing54 (2012), No. 5, pp. 347–35010.3139/120.110338Search in Google Scholar

25 COST MP0602 Thermodynamic Database Version 1.0e (2009)Search in Google Scholar

26 S. L.Chen, S.Daniel, F.Zhang, Y. A.Chang, X. Y.Yan, F. Y.Xie, R.Schmid-Fetzer, W. A.Oates: The PANDAT software package and its applications, CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry26 (2002), No. 2, pp. 175–18810.1016/S0364-5916(02)00034-2Search in Google Scholar

Published Online: 2017-01-27

Published in Print: 2017-02-03

Thermal and structural characteristics of a eutectic Au-Ge alloy

Abstract

Kurzfassung

References

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