Susan,

   Check IPC-A-600F p. 73 for Starting and process Foil Thickness.
Then you can calculate plated copper thickness in barrel.

Victor,

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Susan Mansilla
Sent: Monday, April 26, 2004 6:46 AM
To: [log in to unmask]
Subject: Re: [TN] Stack-up for 2 layer, 3oz. copper board


Just a little technical issue that concerns me - when people give a
plating deposit in the hole or even on the surface in oz. - what exactly
do they need and how do you measure it.

In the IPC specs we have thickness values that are to be met when
starting with a specific foil weight but we don't have a thickness value
for the statement - 3 oz for the hole wall.

Do you spec a ounce weight on the drawing and expect the thickness to be
in the range of what copper foil would be on laminate?

Susan Mansilla
Robisan Lab

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