Paper Title:
Study on the Factors Influencing Spreading Resistance of Heat Sinks
  Abstract

The spreading resistance is a very important parameter in the applications of heat sink. The design of electronic devices will fail without considering the influence of the spreading resistance. In this paper, a simple thermal model was simulated by Computational Fluid Dynamics software. Some factors, which have great influence on the spreading resistance, have been analyzed. The spreading resistance decreases significantly with the increasing of the area ratio between the heat source and the base-plate. While the ratio being 1, the spreading resistance reaches the mix value. The greater the thermal conductivity of heat sink, the lower the spreading resistance. With the increasing of the thickness of base-plate, the spreading resistance reduces. However, if the thickness exceeds the critical value, the spreading resistance will increase. And the spreading resistance reaches the mix value while the centers of heat source and the base-plate are overlapped.

  Info
Periodical
Advanced Materials Research (Volumes 301-303)
Chapter
Chapter 1: Material Science and Technology
Edited by
Riza Esa and Yanwen Wu
Pages
165-169
DOI
10.4028/www.scientific.net/AMR.301-303.165
Citation
D. Y. Gao, J. X. Zhang, P. J. Niu, "Study on the Factors Influencing Spreading Resistance of Heat Sinks", Advanced Materials Research, Vols. 301-303, pp. 165-169, 2011
Online since
July 2011
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Price
$32.00
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