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December 22, 2010, 09:16 |
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#2 |
New Member
Robin Bornoff
Join Date: Mar 2009
Posts: 23
Rep Power: 17 |
Some package vendors will publish transient impedence curves from which you could derive the thermal capacitance but mainly only for power packages.
The only advice I can give would be to get a geometrically detailed 3D numerical model, solve it in a transient CFD model (in an operating environment close to the intended one) then get C (J/s) from the resulting T vs t curve. I work for Mentor Graphics and so would of course advise use of our tools to achieve this. Robin. |
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