DocumentCode :
1094797
Title :
The influence of various common assumptions on the boundary-condition-independence of compact thermal models
Author :
Lasance, Clemens J M
Author_Institution :
Philips Res. Labs., Eindhoven, Netherlands
Volume :
27
Issue :
3
fYear :
2004
Firstpage :
523
Lastpage :
529
Abstract :
It has been repeatedly shown that high accuracy can be obtained when comparing boundary-condition-independent compact thermal models (CTMs) to detailed model results. However, it should be realized that these results have been generated using certain assumptions (e.g., uniformly distributed boundary conditions), and the question remains about the validity of these assumptions when CTMs are used in "real-life" environments. The results show that the assumptions are justified, at least for the package studied, with the exception of boundary conditions associated with heat spreaders and heat sinks. For this type of boundary condition, we need to specify separate heat transfer coefficients for the two nodes at the surface. Finally, an important conclusion is that the "traditionally" generated CTMs perform very well in "real-life" environments.
Keywords :
boundary-value problems; heat sinks; heat transfer; modelling; thermal management (packaging); boundary-condition independence; compact thermal models; heat sinks; heat spreaders; heat transfer coefficients; real-life environments; uniformly distributed boundary conditions; using certain assumptions; Associate members; Boundary conditions; Computational fluid dynamics; Conductivity; Extrapolation; Heat sinks; Heat transfer; Packaging; Predictive models; Temperature; BCI; Boundary–condition–independent; CTMs; compact thermal models;
fLanguage :
English
Journal_Title :
Components and Packaging Technologies, IEEE Transactions on
Publisher :
ieee
ISSN :
1521-3331
Type :
jour
DOI :
10.1109/TCAPT.2004.831788
Filename :
1331548
Link To Document :
بازگشت