Advanced electronic microcoolers

Author

Ghoshal, U. ; Ju, Y.S. ; Miner, A. ; Ketchen, M.B.

Author_Institution

Res. Lab., IBM Corp., Austin, TX, USA

fYear

1999

fDate

Aug. 29 1999-Sept. 2 1999

Firstpage

113

Lastpage

116

Abstract

We discuss the design issues in the development of thermoelectric microcoolers for sub-200 K spot cooling applications. We start with the scaling theory for conventional microcooler configurations, and describe the practical constraints placed by contact resistances, heat rejection methods, and entropy gradients at the interfaces. We also introduce the concepts of switched thermoelectric coolers that exploit the temporal differences in the slow evolution of Joule heat and instantaneous Peltier cooling, to attain large temperature differentials.

Keywords

contact resistance; cooling; entropy; heat sinks; thermal management (packaging); thermoelectric devices; Joule heat; Peltier cooling; contact resistances; electronic microcoolers; heat rejection methods; instantaneous Peltier cooling; interface entropy gradients; scaling theory; spot cooling applications; switched thermoelectric coolers; temperature differentials; thermoelectric microcoolers; Contacts; Cooling; Current density; Electric resistance; Entropy; Resistance heating; Temperature; Thermal conductivity; Thermal resistance; Thermoelectricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 1999. Eighteenth International Conference on

Conference_Location

Baltimore, MD, USA

ISSN

1094-2734

Print_ISBN

0-7803-5451-6

Type

conf

DOI

10.1109/ICT.1999.843346

Filename

843346