NDLI: Transient heat conduction analysis of electronic packages by coupled boundary and finite element methods

Content Provider	IEEE Xplore Digital Library
Author	Guven, I. Madenci, E. Chan, C.L.
Copyright Year	1998
Description	Author affiliation: Dept. of Aerosp. & Mech. Eng., Arizona Univ., Tucson, AZ, USA (Guven, I.)
Abstract	Electronic packages experience large temperature excursions during their fabrication and under operational conditions. Inherent to electronic packages are the presence of geometric and material discontinuities. The regions where adhesive bond lines intersect with convective heat loss surfaces are the most critical locations for failure initiation due to heat flux singularities and extreme thermo-mechanical stresses. Thus, accurate calculation of the flux field, as well as the temperature field, is essential in transient thermomechanical stress analysis. Although the finite element method (FEM) is highly efficient and commonly used, its application with conventional elements suffers from poor accuracy in the prediction of the flux field in these regions. The accuracy of the results from the boundary element method (BEM) formulation, which requires computationally intensive time-integration schemes, is much higher than that of the FEM. However, in this study, a novel boundary element-finite element coupling algorithm is developed to investigate transient thermal response of electronic packages consisting of dissimilar materials. The new algorithm combines the advantages of both methods while not requiring any iterations along the interfaces between BEM and FEM domains.
Starting Page	51
Ending Page	61
File Size	979110
Page Count	11
File Format	PDF
ISBN	0780345266
ISSN	05695503
DOI	10.1109/ECTC.1998.678671
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-05-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transient analysis Electronics packaging Electronic packaging thermal management Temperature Thermomechanical processes Thermal stresses Fabrication Conducting materials Bonding Finite element methods
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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