Advanced double sided cooling IGBT module and power control unit development

Abstract

This paper presents an Integrated Power Module (IPM) and an Integrated Power Unit (IPU) which are based on the IGBT double sided cooling technology. The IPU can be used as the motor control inverter in the electric vehicle. While the IPM used in the IPU is packaged with latest 650V trench field-stop IGBT device and double sided cooling technology. With the double sided soldering and cooling technology, traditional aluminum wire bonds have been eliminated. Reliability and thermal performance of the module are greatly improved. Compared with the traditional single sided cooling module, thermal resistance has been reduced by 23%. Equipped with the active gate driver technology, power losses of the IPM have been greatly optimized. Operation of IPU system with battery voltage 450V and output phase current 450Arms has been achieved.