Steve,

Once upon a time the bare board house I used to work for was making a 4 oz.
finished board.  We tried plating 2 oz. up to 4 oz.  We were not able to get
our plating uniform enough to produce a consistent 4 oz. copper surface.

Take if from someone who has been there; do whatever you have to in order to
get 3 oz. material to start with.

Russ Bafford
Sovereign Circuits
330-538-3900

-----Original Message-----
From: Steve Collins <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Friday, July 21, 2000 4:56 PM
Subject: [TN] 3 oz material


>Are there any reliability concerns in requesting a 4 oz board to start with
>2oz base material and plate up the extra 2 oz with plated copper over
>starting with 3 oz base material and plating 1 oz for a 4 oz finished
>product.
>
>At this point I'm not as interested in comments on price since I realize
>the cost difference and availability issues involved here.
>
>Steve Collins
>
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