On the Al-Si, Al-Ge, and Al-Ge-Si systems and their application to brazing in high power semiconductor devices

Results of the Smith thermal analysis studies13 of the Al-Si, Al-Ge, and Al-Ge-Si systems are presented and compared with previous work. Isothermal and vertical sections for the Al-Ge-Si system, computed from thermodynamic data, are given and compared to the experimental data. The computed sections are used to interpret results of vacuum brazing experiments in which Si discs were joined to Mo with an Al-Ge eutectic alloy.

[1]  A. Dinsdale.  SGTE data for pure elements , 1991 .

[2]  W. Klemm,et al.  Über Zweistoffsysteme mit Germanium. I. Germanium/Aluminium, Germanium/Zinn und Germanium/Silicium , 1939 .

[3]  Joanne L. Murray,et al.  The Al-Ge (Aluminum-Germanium) system , 1984 .

[4]  Joanne L. Murray,et al.  The Al-Si (Aluminum-Silicon) system , 1984 .

[5]  K. Kobayashi,et al.  The Role of the Primary Phase on Eutectic Solidification of Al–Si Alloys , 1976 .

[6]  G. Humpston,et al.  High power devices : fabrication technology and developments , 1991 .

[7]  G. Humpston,et al.  Constitution of AuSn–Pb–Sn partial ternary system , 1985 .

[8]  Hui Song,et al.  Solidification in the system Al-Ge-Si: The phase diagram, coring patterns, eutectic growth, and modification , 1990 .

[9]  M. Gambino,et al.  Thermodynamic analysis of the germanium-based ternary systems (AlGaGe, AlGeSn, GaGeSn) , 1979 .

[10]  M. Gambino,et al.  An Electromotive-Force Study of the Activity of Aluminium in Al-Ga, Al-Ge and Al-Ga-Ge Systems , 1979 .

[11]  J. Caywood.  Measurement of the solubility of germanium in aluminum utilizing MeV He+ backscattering , 1973 .

[12]  P. H. Shingu,et al.  Shift of aluminium liquidus in AlSi system due to the sodium addition , 1976 .

[13]  G. J. Abbaschian,et al.  The Ge−Si (Germanium-Silicon) system , 1984 .

[14]  I. Barin,et al.  Phase equilibria in condensed systems , 1974 .

[15]  Jan-Olof Andersson,et al.  The Thermo-Calc databank system☆ , 1985 .

[16]  C. Pistorius,et al.  The aluminium-germanium eutectic temperature to 40 kilobars , 1974 .