Chimney Effect on Natural Convection Cooling of a Transistor Mounted on a Cooling Fin-Reference-Cited by-同舟云学术

Chimney Effect on Natural Convection Cooling of a Transistor Mounted on a Cooling Fin

Published:2009-02-12 Issue:1 Volume:131 Page:
ISSN:1043-7398
Container-title:Journal of Electronic Packaging
language:en
Short-container-title:

Author:

De Mey G.¹,Wójcik M.²,Pilarski J.²,Lasota M.²,Banaszczyk J.¹,Vermeersch B.¹,Napieralski A.²,De Paepe M.³

Affiliation:

1. Department of Electronics and Information Systems, University of Ghent, Sint Pietersnieuwstraat 41, 9000 Ghent, Belgium

2. Department of Microelectronics and Computer Science, Technical University of Łódź, aleja Politechniki 11, 91-850 Łódź, Poland

3. Department of Flow, Heat and Combustion, University of Ghent, Sint Pietersnieuwstraat 41, 9000 Ghent, Belgium

Abstract

The thermal impedance Zth(jω) has been measured for the junction of a transistor mounted on a cooling fin. The setup was put inside a chimney in order to enhance the natural convection cooling. From the thermal impedance Zth(jω) the influence of the chimney on the reduction in thermal resistance Rth=Zth(jω=0) is clearly visible. A maximum improvement of almost 20% has been observed experimentally. Measuring the thermal impedance as a function of the angular frequency ω provides specific information about the thermal path being influenced by the chimney.

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Link

http://asmedigitalcollection.asme.org/electronicpackaging/article-pdf/doi/10.1115/1.3068307/5603894/014501_1.pdf

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