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May 2003

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Subject:
From:
Tom Gervascio <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 2 May 2003 10:04:52 -0400
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PACE had a tool (Dremel) like that would drill until the tip shorted out to a trace connected to the drill via an electrode. Attaching the electrode to a trace attached to the second layer might work

>>> [log in to unmask] 05/02/03 09:51AM >>>
Does anyone has a suggestion for the following.
We have a existing flex assembly.
For a test, in 2 areas (1/4 in. sq), we'd like to scrape away/remove the
top coverlayer layer and expose the copper on the next layer (GND).
So I have to remove top cover layer, adhesive, layer 1(no copper in this
area), adhesive, polyimide layer, adhesive to get to the 2nd layer.
Can I achieve this with a sander on a Dremal tool or is there a better
way?

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