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| >From bergdi Fri May 16 13: |
34:39 1997 |
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| From [log in to unmask] Mon May 19 10: |
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Hi All
I'm looking for a methodology for determining the current carrying
capacity of an innerlayer power plane as a function of copper weight.
Let's assume the max op temp of the laminate is 105C which allows a 30
degrees temp rise above ambient(?)
It's the old "one ounce copper versus two, three, or four ounce
copper" plane design question again ...... Data, viewpoints, and
experiences would be welcome as well. I do know that for high speed
situations, IR drop is the limiting factor. In this case, it's current
carrying capability.
Thanks in advance
Gerry
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