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A 3-D thermal network model for the temperature monitoring of thermal grease as interface material

Citation

Zhang, X and Wang, S and Xin, L and Wu, K and Yu, X and Wang, X, A 3-D thermal network model for the temperature monitoring of thermal grease as interface material, Microelectronics Reliability, 114 Article 113816. ISSN 0026-2714 (2020) [Refereed Article]


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DOI: doi:10.1016/j.microrel.2020.113816

Abstract

In the cooling system of insulated gate bipolar transistor (IGBT) module, the reliability of thermal grease is of crucial importance in the heat dissipation of IGBT module. In order to study the influence of thermal grease, thermal interface material (TIM) between IGBT module and heat sink, on the junction temperature of IGBT module under long-term load profiles, a 3-D thermal network based on thermal grease temperature monitoring is proposed. Firstly, the finite element method (FEM) simulation model of IGBT module using thermal grease as TIM is established. Then, considering thermal coupling effect, the temperature distribution of thermal grease is obtained and the temperature monitoring points of thermal grease are determined in FEM simulation. Finally, a 3-D thermal network is established to monitor the temperature in all regions of thermal grease. The influence of thermal grease degradation on the junction temperature of IGBT module is analyzed and the temperature distribution of thermal grease under long-term load profiles is obtained. The proposed 3-D thermal network model based on the temperature monitoring of thermal grease can increase the accuracy of IGBT module reliability analysis.

Item Details

Item Type:Refereed Article
Keywords:biplolar transistor, reliability, thermal grease, interface material
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Wang, X (Professor Xiaolin Wang)
ID Code:142251
Year Published:2020
Deposited By:Engineering
Deposited On:2021-01-03
Last Modified:2021-02-23
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