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November 1997

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Subject:
Re: Plating integrity in small vias
From:
"[log in to unmask]" <[log in to unmask]>
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TechNet Mail Forum.
Date:
Tue, 25 Nov 1997 21:15:34 -0800
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With vibrators we still used to get the occassional single air bubble void in small
holes. One cicuit lost in 2000. Always high layer count, quick tern round very
expensive.
        We now have floating shields and have not seen air bubble void in 18 months

Roger Hammond

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