Referenced Items are not available for this document.
To examine molding-compound-induced stresses, and to determine the influence of the time-dependent and temperature-dependent thermomechanical properties of the molding compound, a linear viscoelastic analysis has been applied to a simple bilayer structure. Stress generation is examined over the temperature range from -150 degrees C to the molding temperature (180 degrees C), based on a complete consideration of the thermomechanical properties of a molding compound. Stress calculations are compared to experimentally determined radii of curvature of the bilayer structure as a function of temperature. Both calculated and experimental results demonstrate the necessity to consider a complete materials description in order to adequately describe stress generation. The importance of the viscoelastic contribution of the transition range and the temperature-dependent elastic contribution of the glassy state to stress generation are highlighted.<
Published in:
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
(Volume:11
,
Issue:
3
)
Date of Publication: Sept. 1988
- Page(s):
- 245 - 252
- ISSN :
- 0148-6411
- INSPEC Accession Number:
- 3291555
- Digital Object Identifier :
- 10.1109/33.16648
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Sept. 1988
- Sponsored by :
- IEEE Components, Packaging, and Manufacturing Technology Society
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