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Communication Dans Un Congrès Année : 2011

Study of Thermal Interfaces Aging for Power Electronics Applications

Résumé

This paper presents new investigations on the aging of Thermal Interface Materials (TIM) subjected to thermal cycling conditions. The challenge was to design a specific and original set-up in order to not only undergo avionic temperature mission profile (-50°C/150°C) but also to perform standardized thermal characterization at always same conditions. Thermal conductivity is used as aging indicator. Several TIM materials (change phase, graphite and polymer based) have undergone more than 850 of such cycles. As a result, only the phase change material thermal interface has been affected with a 30% decrease of initial thermal resistance.
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Dates et versions

hal-00628901 , version 1 (04-10-2011)

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Jean-Pierre Ousten, Zoubir Khatir, Ludovic Menager. Study of Thermal Interfaces Aging for Power Electronics Applications. Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2011 27th Annual IEEE, Mar 2011, San José, United States. pp.10-17, ⟨10.1109/STHERM.2011.5767171⟩. ⟨hal-00628901⟩
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