Experiments have been performed to assess the feasibility of single and two
-phase micro heat exchangers applied to the cooling of insulated gate bipol
ar transistor (IGBT) power components. After a brief recall of the principa
l characteristics of such heat exchangers, prototypes that have been built
and tested are described. Then, the experimental measurements are compared
to the predictions of the thermal and hydraulic performance with water and
the inert fluorocarbon liquid (FC72) as coolant fluids.