Date of Award
Master of Science
Electrical and Computer Engineering
AN ABSTRACT OF THE THESIS OF AFSANA SHARMIN, for the Master of Science degree in Electrical and Computer Engineering, presented on November 1, 2013, at Southern Illinois University Carbondale. TITLE: EMBEDDED COOLING OF HIGH PERFORMANCE ICS USING NOVEL NANOSTRUCTURED THERMOELECTRICS MAJOR PROFESSOR: Dr. Shaikh S. Ahmed Site specific thermoelectric cooling in semiconductor materials is among the most promising approaches for the mitigation of on-chip hot spots resulting from the decreasing feature sizes and faster switching speeds of electronic components. The efficient usage of thermoelectric devices for hotspot cooling requires investigation and appropriate properties such as higher figure of merit, integration of these devices with electronic package, remedy of various obstacles such as parasitic contact resistances. A simulation model has been developed to investigate the effect of steady state operation of nanowire based thermoelectric cooler devices on hot-spot cooling considering the effect of crucial thermal and electrical contact resistances. The results suggest that active hotspot cooling of as much as 23ºC with a high (~1,300W/cm2) heat flux for nanowire based Bi2Te3 thermoelectric cooler. It has been observed from the results that thermal and electrical contact resistances play a very crucial role in the performance of nanowire based thermoelectric cooling devices as high values of these resistances can significantly degrade the effect of Peltier cooling.
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