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October 2004

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Subject:
From:
Peter Swanson <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Peter Swanson <[log in to unmask]>
Date:
Thu, 30 Sep 2004 11:48:23 +0100
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I am looking for ideas for a pcb assembly coating, the function of which is
to hide the component IDs to prevent piracy and copying. This is a
non-specific requirement which comes up from time to time.

Basic requirements:
1) Opaque - black, but could be any colour I guess
2) Fairly permanent and resistant to tampering - leads me to an epoxy type?
Anything can be removed if you try hard enough, but epoxy would be the
toughest
3) Easily applied, no special equipment - aerosol can? Brush on with fast
(thermal cure)? Single part?

There's some other factors which would be specific to particular assemblies
(thermal and electrical characteristics) of course, but I'm just looking for
something generic at the moment.

Anyone have any ideas or already use something for this purpose?
TIA,
Peter
--
--------------------------------------------------------
Peter Swanson           [log in to unmask]
INTERTRONICS               http://www.intertronics.co.uk
Tel: +44 1865 842842                Oxfordshire, England
INTERTRONICS is dedicated to providing quality material,
consumable and equipment solutions to high technology
assembly industries, with the highest levels of technical
support and customer service.

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