Automated Design-for-Reliability of a Power Electronics Module

Research output: Contribution to conferencePaperpeer-review

2 Scopus Citations


The design of a power electronics module is a multiphysics problem and involves electrical, thermal, and reliability targets and constraints. Although the electrical and thermal design consider multiple aspects such as materials, geometry, and energy losses, reliability design is often limited to the selection of the attachment materials and electrical interconnect types. In this paper, we incorporate reliability metrics in the design phase by investigating the impact of package geometry on the thermomechanical behavior of the die-attachment material. To this end, we conducted thermal and power cycling simulations of a commercial six-pack power module with silicon carbide devices to compute junction temperature and strain energy density per cycle, respectively. We performed multiple simulations with different geometric dimensions and established a correlation between input features and output variables using subspace-based dimension reduction. The machine learning-based dimension reduction method serves as a surrogate model, which can be employed to identify the optimal module design from a thermal and reliability standpoint.

Original languageAmerican English
Number of pages6
StatePublished - 2023
Event22nd InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2023 - Orlando, United States
Duration: 30 May 20232 Jun 2023


Conference22nd InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2023
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

NREL Publication Number

  • NREL/CP-5400-84824


  • design-for-reliability
  • dimensionality reduction
  • power electronics
  • thermomechanical modeling


Dive into the research topics of 'Automated Design-for-Reliability of a Power Electronics Module'. Together they form a unique fingerprint.

Cite this