Thermal management of flip chip style integrated circuits often relies on thermal conduction through the ceramic package and high lead solder grid array leads into the printed wiring board as the primary path for heat removal. Thermal analysis of this package configuration requires accurate characterization of the sometimes geometrically complex package-to-board interface. Given the unique structure of the Six Sigma column grid array (CGA) interconnect, a detailed finite element submodel was used to numerically derive the effective thermal conductivity with comparisons to a conventional CGA interconnect. Once an effective thermal conductivity value is obtained, the entire interconnect layer can be represented as a fictitious cuboid layer for inclusion in a more traditional “closed-form” thermal resistance calculation. This method allows the package designer a quick and robust method to evaluate initial thermal design study tradeoffs.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4938-5
PROCEEDINGS PAPER
Effective Thermal Conductivity of Six Sigma’s Copper Reinforced Column Grid Array Interconnect for Ceramic Microelectronic Packages Available to Purchase
Mark Eblen
Mark Eblen
Kyocera America, Inc., San Diego, CA
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Mark Eblen
Kyocera America, Inc., San Diego, CA
Paper No:
IHTC14-22891, pp. 603-610; 8 pages
Published Online:
March 1, 2011
Citation
Eblen, M. "Effective Thermal Conductivity of Six Sigma’s Copper Reinforced Column Grid Array Interconnect for Ceramic Microelectronic Packages." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 3. Washington, DC, USA. August 8–13, 2010. pp. 603-610. ASME. https://doi.org/10.1115/IHTC14-22891
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