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Wed, 28 May 2003 14:03:34 -0500 |
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Dickey-john Corp. |
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Steve,
My man - thanks for sticking with us. After taking on two kinds cancer over the last few
years I have determined that life has no quarantines, but if I don't take it and myself
too seriously I seem to enjoy it more.
The spec sounds bogus. I am going to assume you are expecting 0.001" copper in your
holes. If you start with 0.0005" foil on layer 1 of the laminate, after hole plate the
etches would be at least 0.0015". Looking at the stack-up it looks like PWB vendor has
to have a laminate with 1 oz. clad to one side (layer 2 side) and 3/8 oz clad to the other
side (layer 1side). I guess one of the board guys could say if that is normal, i.e. in
stock, material.
Gary Camac
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