Abstract
Electronic power devices used for transportation applications experience severe temperature variations which promote their thermal fatigue and failure of DBC substrates. The Weibull approach was used to model the brittle fracture of the ceramic layer from a natural defect. Besides, geometric singularities in the upper ceramic/copper interface are at the origin of cracks, which grow by fatigue and finally bifurcate and break the ceramic layer.
| Original language | French |
|---|---|
| Pages (from-to) | 271-289 |
| Number of pages | 19 |
| Journal | European Journal of Electrical Engineering |
| Volume | 12 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Dec 2009 |
| Externally published | Yes |
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Keywords
- Crack's growth
- Modes of request
- Probability of failure
- Stress intensity factor
- Weibull's law
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Rupture fragile et fatigue des substrats DBC, applications haute temperature. / Pietranico, Sylvain; Pommier, Sylvie; Lefebvre, Stéphane; Khatir, Zoubir.
In: European Journal of Electrical Engineering, Vol. 12, No. 2, 01.12.2009, p. 271-289.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rupture fragile et fatigue des substrats DBC, applications haute temperature
AU - Pietranico, Sylvain
AU - Pommier, Sylvie
AU - Lefebvre, Stéphane
AU - Khatir, Zoubir
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Electronic power devices used for transportation applications experience severe temperature variations which promote their thermal fatigue and failure of DBC substrates. The Weibull approach was used to model the brittle fracture of the ceramic layer from a natural defect. Besides, geometric singularities in the upper ceramic/copper interface are at the origin of cracks, which grow by fatigue and finally bifurcate and break the ceramic layer.
AB - Electronic power devices used for transportation applications experience severe temperature variations which promote their thermal fatigue and failure of DBC substrates. The Weibull approach was used to model the brittle fracture of the ceramic layer from a natural defect. Besides, geometric singularities in the upper ceramic/copper interface are at the origin of cracks, which grow by fatigue and finally bifurcate and break the ceramic layer.
KW - Crack's growth
KW - Modes of request
KW - Probability of failure
KW - Stress intensity factor
KW - Weibull's law
UR - http://www.scopus.com/inward/record.url?scp=84859855605&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859855605&partnerID=8YFLogxK
U2 - 10.3166/EJEE.12.271-289
DO - 10.3166/EJEE.12.271-289
M3 - Статья
VL - 12
SP - 271
EP - 289
JO - European Journal of Electrical Engineering
JF - European Journal of Electrical Engineering
SN - 2103-3641
IS - 2
ER -