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October 1997

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Subject:	Re: Gold Slivers
From:	Ed Cosper <[log in to unmask]>
Reply To:	TechNet Mail Forum.
Date:	Wed, 8 Oct 1997 08:28:22 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (49 lines)

Only  one way I know to eliminate gold slivers and that is to etch first, electroless gold after.

Ed Cosper

----------
From:  Art Shuler[SMTP:[log in to unmask]]
Sent:  Tuesday, October 07, 1997 12:00 PM
To:  [log in to unmask]
Subject:  [TECHNET] Gold Slivers

Does anyone know of a way to completely eliminate gold slivers on a PWB
which is manufactured using a selective gold process? We realize due to
the etch factor, that there will be a 1.4 mil outgrowth when etching 1
oz. copper cladded material.

Mil-P-55110 recognizes that outgrowth will be present on conductors
plated with metals other than solder, but our customer cannot tolerate
slivering.  We've tried brushing them off with a brass wire brush, but
this seems to aggravate the problem.

Any input would be greatly appreciated.

Thank you

Art

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