Double treat should be packaged to prevent handling scuffs/scratches that you've
described, sometimes we see this but usually on only a few layers. Have you any way of
applying brown/black oxide to the laminate? This would prevent any de-lamination
problems (from excessive scratches or contamination from handling) and also restore the
layers to a more uniform appearance (some scuffs/scratches are visible even after
press/solder mask).

Hope this helps

Franklin D Asbell



Hinners Hans Civ WRALC/LYPME wrote:

> Hi All,
>
> We've gotten a shipment of Double Treated laminate (I won't mention names)
> with slight scratches and scuff marks on every panel (front and back).
> The treatment is gone and copper is showing through in some areas.
>
> Is this normal?
> Do we have to worry about delamination after pressing up?
>
> Hans
>
> ~~~~~~~~~~~~~~~~~~~
> Hans M. Hinners
> Materials Engineer (Process & Manufacturing)
> Warner Robins Air Logistics Center
> Avionics Production Division
> Precision Attack/ Radar/Manufacturing Branch
> Engineering Section
> 380 Second Street, Suite 104
> Building: 640, Mail Stop: LYPME
> Robins AFB, GA 31098-1638
> Voice: (478) 926 - 1970 Fax: (478) 926 - 7164
> mailto:[log in to unmask]
> http://www.robins.af.mil
>
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