Won't reverse engineering be risky when it comes to patent infringement?  I 
don't know where the limit for prosecution takes place.  To open a package 
because of curiosity only (no copying or misuse), is that to violate  laws?
/Inge

--------------------------------------------------
From: "Roger Mack" <[log in to unmask]>
Sent: den 7 April 2010 12:29
To: <[log in to unmask]>
Subject: Re: [TN] Reverse engineering proofing

> We pot a lot of product. It is common practice to de-pot units for
> analysis. It is not difficult. A little heat and an orange stick will
> remove most.
> I once worked on a contract to build secure terminals that had a wire loop
> suspended in the potting that would erase the program if broken - maybe
> better than nothing ,you would have to give me two of those to safely
> de-pot it for you.
> Potting would stop the curious, but not the really curious.
> Also be careful of choosing something too hard to discourage removal, high
> CTE mismatch between potting and board will cause failures during thermal
> cycle. If it is a new process to you, make sure you qualify it.
>
>
> Roger Mack  P.Eng.
> Manufacturing Specialist
> Parker Hannifin Electronic Controls
> Electronic Controls Division
> 1305 Clarence Avenue
> Winnipeg, MB  R3T 1T4 Canada
> direct 204 453 3339 x373
> [log in to unmask]
> www.parker.com/ecd
>
>
>
>
>
>
>
> Ioan Tempea <[log in to unmask]>
> Sent by: TechNet <[log in to unmask]>
> 04-07-2010 13:54
> Please respond to
> TechNet E-Mail Forum <[log in to unmask]>; Please respond to
> Ioan Tempea <[log in to unmask]>
>
>
> To
> [log in to unmask]
> cc
>
> Subject
> [TN] Reverse engineering proofing
>
>
>
>
>
>
> Dear Technos,
>
>
>
> We want to prevent reverse engineering of a few products that we assemble,
> as much as we can. What are the proofing methods you use?
>
>
>
> An idea that came up was to cover the surface of the cards with potting.
> If this makes sense, what substance to use?
>
>
>
> Thanks,
>
>
>
> Ioan Tempea, ing.
> Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
> T | 450.967.7100 ext.244
> E | [log in to unmask] <mailto:[log in to unmask]>
> W | www.digico.cc <http://www.digico.cc/>
>
>
> N'imprimer que si nécessaire - Print only if you must
>
>
>
>
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