Afinite element model of IGBT module packaging was constructed by utilizing FEAsoftware of ANSYS. Effect of different grease thickness, equivalent heat transfer coefficient, base plate thickness and material, solder thickness and material, substrate thickness and material, copper layer thickness on thermal performance of IGBT module packaging were studied, as well as chip junction temperature affected by thermal spreading. The obtained conclusions might help to optimize packaging design of IGBT module.
关键词
IGBT 模块热性能热扩展热传导当量换热系数有限元分析
Keywords
IGBT modulethermal performancethermal spreadingheat conductionequivalent heat transfer coefficientfinite element analysis