功率模块与散热器间界面热阻的不确定性分析

Thermal resistance of the thermal interface materials (TIMs) between power module and heatsink plays a significant role in thermal stress. This article investigates the variances in thermal resistances of TIMs during thermal cycling test and among different chips of a six-switch power module. An experimental setup to facilitate the emulation of practical power state operation is built for the test...