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August 2001

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Subject:
From:
Chuck Brummer <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 15 Aug 2001 15:25:19 -0700
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Edward,

We process that material everyday and much thinner single sided.  The double sided is pulled
behind a FR-4 board and the single sided is taped to a board.  I do know of several companies
who claim they can transport the 17/50/17.  I have found that the conveyors tend to get in the
way of the spray action.  Best run at passing the thinner material was from Advanced Chem Mill
Systems here in sunny California.

Chuck Brummer
[log in to unmask]

Edward Szpruch wrote:

> Hi Technetters,
> I sent this posting 3 days ago.
> I presume,that among 1232 subscribers of Technet they are some processising
> flexible innerlayers by horizonal lines.All of those are on vacation???
> I need opinion from people that installed such lines about their experience.
> We specified the capability of the line to process flexible innerlayers and
> polyimide thin innerlayers ( 50 microns dielectric,17/17 micron copper) with
> signal circuitry without leaders as well as thicker rigid innerlayers ( up
> to 1 mm ) with ground areas with uniform color of treated copper.
> I am very interested in actual results.
> I will very appreciate also private mails if there is negative experience
> and someone hestitate to send on the net the names of suppliers.
>
> Edward Szpruch
> Eltek , Manager of Process Engineering
> P.O.Box 159 ; 49101 Petah Tikva Israel
> Tel  ++972 3 9395050 , Fax  ++972 3 9309581
> e-mail   [log in to unmask]
>
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