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May 1999

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Subject:
From:
Paul Brown <[log in to unmask]>
Reply To:
"TechNet E-Mail Forum." <[log in to unmask]>, Paul Brown" <[log in to unmask]>
Date:
Fri, 28 May 1999 10:19:21 +0100
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Geoff
I have not got an answer for you but you might have a a word with Ian
Chalmers at Express Circuits, with his experience in multilayer manufacture
he is bound to have some experience

By the way are you the Geoff Layhe that used to be at Technet, Peterborough
?

----- Original Message -----
From: Geoff Layhe <[log in to unmask]>
To: <[log in to unmask]>
Sent: 27 May 1999 16:39


> Many years ago in the dim & distant past I remember using a product
> called Lubra Sheet for drilling multilayers. It was a thin sheet of
> material which was placed on the bottom (or was it the top?) of a stack
> of multilayers. When the stack was drilled the idea was that the Lubra
> Sheet lubricated the drill and improved the drilled hole.
>
> Is this product still available? Has anybody got experience of using it?
>
> Geoff Layhe
>
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