From: Greim, Michael (email@example.com)
Date: Tue Aug 08 2000 - 11:45:55 PDT
A thieving pattern is a bunch of very small shapes
added to a layer that helps equalize the plating
across a given layer (increases manufacturability).
An auto thieving utility or program uses a set of
criteria to determine how and where to put these
shapes. Unfortunately these programs are almost
exclusively focussed on mfg issues and not SI or
Usually if you see a bunch of 1/16" width diamonds
on an artwork layer, this is thieving.
From: Ray Anderson [mailto:firstname.lastname@example.org]
Sent: Monday, July 31, 2000 11:12 AM
To: Greim, Michael
Cc: SI LIST
Subject: Re: [SI-LIST] : Effects of thieving on SI and EMC.....
OK, I'll bite. Educate me, what is a thieving pattern,
and an auto-thiever ????
> Does anyone out there have a tool or reference
> that would allow one to calculate the effects of
> thieving patterns on signal integrity and EMC.
> I am trying to come up with appropriate rule sets
> for driving an auto-thiever utility.
> Thanks for the help.
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