Electrothermal Characterization of Double-Sided Cooling Si Power Module
Abstract
This paper presents an electrothermal characterization of a prototype double-sided cooling power module. The junction temperature T j is an important parameter of power devices. Different methods exist for junction temperature measurement. In this work, an electrical method based on temperature sensitive electrical parameter (TSEP) is conducted to estimate the junction temperature of the power module. A 3D thermal model was built to better comprehend thermal behavior within the module. A comparison between simulation and measurement results is performed and analyzed. Results have shown that 3D numerical modeling help understanding several manufacturing defects (soldering, sintering, die defaults, etc.).