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December 2005

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Subject:
External Plating - Impedance Calculation
From:
Babcock John <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Babcock John <[log in to unmask]>
Date:
Fri, 9 Dec 2005 09:59:08 -0800
Content-Type:
text/plain
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text/plain (27 lines) 
Hi All,
 
When figuring impedances with the field solvers...for the external layer
copper thickness does one enter the finished plated value or the
unfinished?
 
If you specify a top and bottom layer as 1.5 oz plated to 2 oz, which
value would you put into the field solver for the impedance calc?
 
I would figure you put in the finished plated value...but not positive.
 
Thanks!
 
John
PCB Designer III
Isothermal Systems Research

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