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Physics-of-Failure Design-for-Reliability of a Bidirectional Multi-Output DC-DC Power Converter

[+] Author Affiliations
Vibhash Jha, F. Patrick McCluskey

University of Maryland, College Park, MD

Paper No. IHTC14-23040, pp. 675-680; 6 pages
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 3
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4938-5 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME


The design of a prototype power converter was evaluated and improved using the physics-of-failure based design-for-reliability approach. Thermal simulation of the power module board with the heat sink has been carried out and these results have been used further for estimating the overall thermal cycle reliability. The solder joint reliability has been investigated using two different kinds of solders — SnAgCu (SAC305) and SnPb eutectic solder.

Copyright © 2010 by ASME



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