Hi Roger,

        I picked up on your memo with regard to Floating shields to prevent air
or Hydrogen entrapment in small holes or vias. Could you elaborate on what the
shields consist of, either on Technet or to my e-mail address?

Thanks,

Les Connally [log in to unmask]

>  From: "[log in to unmask]" <[log in to unmask]>, on 11/25/97 9:15 PM:
>  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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