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In this contribution, the electrical ruggedness of double-sided cooled (DSC) power modules (PMs) for energy conversion applications is explored through simulations. Attention is focused on the spacing between the interfacing substrates of these assemblies, which is closely related to the size of the bumps. First, highly detailed finite element method (FEM) simulations in COMSOL Multiphysics are employed to evaluate voltage distribution, electric field, and parasitic capacitances of these structures. Subsequently, the above assessments are used to perform realistic SPICE simulations of a typical turn-off event; the maximum electric field waveform is monitored during the turn-off to evaluate the electrical ruggedness of the assemblies. A comparison between designers’ estimations and the actual performance of the DSC PMs is also presented.

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In-Depth Analysis of the Electrical Ruggedness of Double-Sided Cooled Power Modules

  • 会议论文

  • 发表日期：

    2025年

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  • Antonio Pio Catalano,
  • Ciro Scognamillo,
  • Vincenzo d’Alessandro

摘要

In this contribution, the electrical ruggedness of double-sided cooled (DSC) power modules (PMs) for energy conversion applications is explored through simulations. Attention is focused on the spacing between the interfacing substrates of these assemblies, which is closely related to the size of the bumps. First, highly detailed finite element method (FEM) simulations in COMSOL Multiphysics are employed to evaluate voltage distribution, electric field, and parasitic capacitances of these structures. Subsequently, the above assessments are used to perform realistic SPICE simulations of a typical turn-off event; the maximum electric field waveform is monitored during the turn-off to evaluate the electrical ruggedness of the assemblies. A comparison between designers’ estimations and the actual performance of the DSC PMs is also presented.