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September 1999

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Mon, 27 Sep 1999 15:25:29 -0700
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Offended, offended, hell Dave, I never get offended or pissed off.

I do remember doing some micro vias using plasma back in the late 197mmmm's
and early 198mmm's. It worked for that, polyimide etchback,  and still
should work for anything else needing a good "scrub" but the semi folks have
the best handle on that now - don't they? Where are they now?

Earl Moon
----- Original Message -----
From: Dave Hoover <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 27, 1999 11:37 AM
Subject: [TN] Plasma and PTFE


> Many Moons ago.....(No offense Earl)
> Some R and D efforts were being demonstrated successfully
> with plasma etchings PTFE with Helium. (I guess they also
> did some flex that way too) Anyways....Is anybody still
> doing this or is it still R and D????????
>
> Curious minds are inquiring......
>
> Dave Hoover
>
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