Transient Thermal 2D FEM Analysis of SiC MOSFET in Short-Circuit Operation Including High-temperature Material Laws and Phase Transition of Aluminum Source Electrode - Les productions scientifiques du groupe CS du laboratoire plasma et conversion d’énergie Accéder directement au contenu
Article Dans Une Revue Microelectronics Reliability Année : 2024

Transient Thermal 2D FEM Analysis of SiC MOSFET in Short-Circuit Operation Including High-temperature Material Laws and Phase Transition of Aluminum Source Electrode

Emmanuel Sarraute
Thibauld Cazimajou
Frédéric Richardeau

Résumé

Understanding the electrothermal behavior of SiC MOSFET power devices under extreme operation conditions, such as short circuits, is crucial for their application certification. However, simulating short circuits in electronic components is challenging due to the necessity of a comprehensive thermal and electrical Multiphysics model that incorporates material laws and respects elevated temperatures with broad ranges. It is also needed to model the melting of the topside Al electrode. The paper presents for the first time a 2D electrothermal FEM that simulates the thermodynamic behavior of SiC MOSFET at high temperatures transistors under short-circuit conditions, including wide-range temperature-dependent material property laws. This work models the Al phase transition by considering the apparent heat capacity method and including the latent heat absorbed during the Al solid-liquid phase change (PC). The geometric accuracy of this study provides significant added values compared to existing 1D models. It was deduced that including the temperature-dependent material laws highly impacted the results. The rise in SiC junction temperature led to a delay in the onset of Al melting. It also impacted the progression manner of the Al melting process after the formation of new melting fronts.
Fichier sous embargo
Fichier sous embargo
0 5 15
Année Mois Jours
Avant la publication
samedi 14 décembre 2024
Fichier sous embargo
samedi 14 décembre 2024
Connectez-vous pour demander l'accès au fichier

Dates et versions

hal-04613010 , version 1 (15-06-2024)

Identifiants

Citer

Mustafa Shqair, Emmanuel Sarraute, Thibauld Cazimajou, Frédéric Richardeau. Transient Thermal 2D FEM Analysis of SiC MOSFET in Short-Circuit Operation Including High-temperature Material Laws and Phase Transition of Aluminum Source Electrode. Microelectronics Reliability, 2024, 159, pp.115440. ⟨10.1016/j.microrel.2024.115440⟩. ⟨hal-04613010⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More