Title :
Advanced electronic microcoolers
Author :
Ghoshal, U. ; Ju, Y.S. ; Miner, A. ; Ketchen, M.B.
Author_Institution :
Res. Lab., IBM Corp., Austin, TX, USA
fDate :
Aug. 29 1999-Sept. 2 1999
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;
Conference_Titel :
Thermoelectrics, 1999. Eighteenth International Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-5451-6
DOI :
10.1109/ICT.1999.843346
