Not into rigid builds often but I thought .056 clad plus bond ply plus foil/surface finish was a good 4 layer .062 and 2 .028 were for 6 layers.
www.quickturnflex.com
Thank you,
Jim Mahoney
Quick Turn Flex Circuits, LLC
Applications Project Manager
P# 603-821-7071
M# 603-305-6250
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-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of John Parsons
Sent: Wednesday, November 04, 2009 1:43 PM
To: [log in to unmask]
Subject: Re: [DC] Standard construction for a 4 layer board...
Bill,
Every fabricator will have their own mix of 'standard' stocked materials and
thus will likely have their own internal 'standard' for a build when none is
specified in the fabrication details but from shop to shop there is no
standard.
John Parsons
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Brooks,
Bill
Sent: Wednesday, November 04, 2009 10:20 AM
To: [log in to unmask]
Subject: [DC] Standard construction for a 4 layer board...
I need to ask the designers and particularly the manufacturers a
question.
IS there a standard construction for a 4 layer FR4 board?
What thickness core and what prepreg arrangement would be used if I
asked for a IPC 4101/26 material to be used without specifying the
stackup thicknesses?
Best regards,
Bill Brooks | Datron World Communications, Inc.
PCB Designer/Engineer | Office: 760-602-7004| Fax: 760-597-3777 |
[log in to unmask]
1808 Aston Avenue, Suite 230, Carlsbad, CA 92008 | www.dtwc.com
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