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August 1998

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Date:
Tue, 18 Aug 1998 08:55:12 -0500
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     All,

     What methods should I use to distinguish the differences between
     standard Black Oxide and White Oxide (DuraBOND) on finish fabs.

     The fabs I have are 4 layer with one case being 4 signals and the
     other 2 signals/2 planes.

     I peeled several fabs with a basic Xacto knife and was shocked at the
     low peel strength, considering I peel the laminate apart by hand.  I
     presume this is the fab with White Oxide.  I want to avoid
     cross-sectioning since I do not have such services in-house.

     Thanks.

     John Gulley

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