Modeling of aluminum via filling by forcefill

  • Y. Estrin
    IWW, TU Clausthal, Agricolastrasse 6, 38678 Clausthal-Zellerfeld, Germany
  • H. S. Kim
    Department of Metallurgical Engineering, Chungnam National University, Taejon, 305-764, Korea
  • M. Kovler
    Tower Semiconductor Limited, P.O. Box 619, Migdal Haemek 23105, Israel
  • G. Berler
    Tower Semiconductor Limited, P.O. Box 619, Migdal Haemek 23105, Israel
  • R. Shaviv
    Tower Semiconductor Limited, P.O. Box 619, Migdal Haemek 23105, Israel
  • E. Rabkin
    Department of Materials Engineering, Technion, Haifa 32000, Israel

抄録

<jats:p>A simple constitutive model was used to predict the efficiency of the aluminum forcefill process. The constitutive description—adopted from the one developed for bulk material—was implemented in a finite-element code and applied to simulate the forcefill process. The results are summarized in the form of a “forcefill map” showing isochrones (constant via filling time lines) on the pressure–temperature plane. Using such a diagram, it is possible to identify the process conditions that warrant complete via filling within a specified time. Comparison of the simulation results with experimental data demonstrates a semiquantitative agreement.</jats:p>

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