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| Date: | Tue, 1 Jun 2010 12:35:16 -0400 |
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I've attempted to address that as well as the potential for resin starvation but they're not budging. That's why I'm asking the experts out here. Just to prove I'm not nuts by not wanting to build this. By the way, did I mention this board is a 6013 class 3 type 4 board. :) They did state a min dielectric thickness of .001181" on the procurement doc. so the min. dielectric spec. for 6013 is over ruled correct?
Dan S.
----- Original Message -----
From: [log in to unmask]
To: TechNet E-Mail Forum ; Dan Skweres
Sent: Tuesday, June 01, 2010 12:18 PM
Subject: Re: [TN] Single-ply construction
Dan,
Are they not concerned that the dielectric breakdown will be too low? You will have the tooth of the copper touching the glass fabric on both sides.
There may be cross-talk issues too?
Chuck Brummer
3M Manufacturing Engineer
8357 Canoga Ave.
Canoga Park, CA 91304-2605
(818) 734-4930
From: Dan Skweres <[log in to unmask]>
To: [log in to unmask]
Date: 06/01/2010 08:19 AM
Subject: [TN] Single-ply construction
Sent by: TechNet <[log in to unmask]>
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We have a customer insisting that we use a single ply of FR406 1080 between two copper layers each 1 oz. copper. One layer is a plane and the other a signal. We're quite concerned that there will be issues with fill. We don't recommend single-ply construction especially against two 1 oz. copper layers. Any thoughts, comments and/or concerns would be appreciated.
Thanks!
Dan S.
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