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February 2005

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Subject:
Re: Peel able Etch Block
From:
Donald Vischulis <[log in to unmask]>
Reply To:
Donald Vischulis <[log in to unmask]>
Date:
Tue, 1 Feb 2005 16:50:44 -0600
Content-Type:
text/plain
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text/plain (49 lines) 
You can always use plating tape.  The pink/blue/green stuff used for gold plating.  Adhesive transfer could be an issue, but it will stand up to most chemistry.

Don Vischulis

-----Original Message-----
From: Brummer Chuck <[log in to unmask]>
Sent: Feb 1, 2005 1:05 PM
To: [log in to unmask]
Subject: [TN] Peel able Etch Block

Hi Everyone,

I need to protect the backside of a flexible circuit where the copper is
exposed through the Polyimide through our cupric etcher.  The opening is to
deep for dry film and if I use liquid resist that thick I cannot get it to
strip.

Does anyone know of a "peel able" etch resist that might work for this
application?

Suppliers or vendors are welcome to contact me directly

Thanks in advance,

Chuck Brummer
Siemens Medical
[log in to unmask]
818.734.4930

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