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August 1997

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Fri, 15 Aug 1997 21:50:21 -0400
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Innerlayers made with drum side treated foil still require an oxide process
prior to multilayer lamination.  You may be thinking of double-treat coppper,
which eliminates the need for oxide.  Your laminate supplier should be able
to provide you with data on double treat copper.

Drum side treated foil, which is being offered on laminates by most of the
major laminate manufacturers (it is sold under various names; DSTF, MLF, MLS,
etc.), has some advantages over standard copper.    Resist adhesion is
generally better, and cleaning is somewhat simpler, with little or no
microetch required.    Depending on your process, you may see increased bond
strength after multilayer lamination with drum side treated foil.   Again,
your laminate supplier should be able to provide data.

Mark Dowding
Regional Technical Specialist
Insulectro


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