The constitutive modeling approach based on the disturbed state concept (DSC) described in Part I, provides a unified basis for the characterization of thermomechanical response of materials and joints in electronic chip-substrate systems. Using the material constants given in Part I, the DSC model predictions, obtained by integrating the incremental constitutive equations, are shown here to provide satisfactory backpredietions of stress-strain, fatigue, and failure responses of typical solder materials. The DSC also provides a simple criterion based on the critical disturbance to identify cyclic fatigue failure. Model predictions show good correlation with those from previous models. It is also shown how the DSC model can be used for design applications. Overall, based on Papers I and II, it can be stated that the DSC can provide a new and powerful means to characterize the thermomechanical behavior of materials and joints in a number of problems in electronic packaging.
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e-mail: csdesai@bigdon.engr.arizona.edu
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December 1997
Technical Papers
Thermomechanical Response of Materials and Interfaces in Electronic Packaging: Part II—Unified Constitutive Models, Validation, and Design
C. S. Desai,
C. S. Desai
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
e-mail: csdesai@bigdon.engr.arizona.edu
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J. Chia,
J. Chia
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
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T. Kundu,
T. Kundu
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
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J. L. Prince
J. L. Prince
Department of Electrical and Computer Engineering, The University of Arizona, Tucson, AZ 85721
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C. S. Desai
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
e-mail: csdesai@bigdon.engr.arizona.edu
J. Chia
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
T. Kundu
Department of Civil Engineering and Engineering Mechanics, The University of Arizona, Tucson, AZ 85721
J. L. Prince
Department of Electrical and Computer Engineering, The University of Arizona, Tucson, AZ 85721
J. Electron. Packag. Dec 1997, 119(4): 301-309 (9 pages)
Published Online: December 1, 1997
Article history
Received:
April 24, 1995
Revised:
November 1, 1996
Online:
November 6, 2007
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Citation
Desai, C. S., Chia, J., Kundu, T., and Prince, J. L. (December 1, 1997). "Thermomechanical Response of Materials and Interfaces in Electronic Packaging: Part II—Unified Constitutive Models, Validation, and Design." ASME. J. Electron. Packag. December 1997; 119(4): 301–309. https://doi.org/10.1115/1.2792253
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