Dear Pete, I also made myself your question time ago, my relative truth  is
that in all cases that you can use 2 plies used it, One ply means that the
ply system resin- reinforce must be in perfect state, no fault is admitted.
I never had meet an adhesion problem  using one ply,
but i had meet dielectrical lacks betw. layer and was due to operational
asemblies fault.
at the end is as we say :is not the same the double than the half

regards,

lino

>From: Pete Jones <[log in to unmask]>
>Reply-To: "TechNet E-Mail Forum." <[log in to unmask]>,   Pete Jones
><[log in to unmask]>
>To: [log in to unmask]
>Subject: [TN] FAB Question: laminate - 1 ply or 2??
>Date: Thu, 25 Apr 2002 09:55:27 -0400
>
>Hello all TechNetters,
>
>What is the difference between using 1 ply of laminate or 2 in fab boards?
>
>Is there a REAL concern that 1 ply will not be sufficient electrical
>insolation? Or has resins now evolved enough to make it safe to use just
>one
>ply?
>
>I deal mostly, but not exclusively, with the military and would like to
>make
>sure of my statement that 1 ply should be sufficient. Can I get reliable
>references anywhere concerning this issue, one way or the other?
>
>Thanks to all participants in this discussion.
>
>Pete
>
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