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March 1999

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Subject:
From:
Jeff Seeger <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 31 Mar 1999 19:04:17 -0500
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Ken Patel wrote:
>
> PCB Design Expert,
> I have heard from my layout house that gerber output in RS274X format from
> Cadence Allegro can drop apertures and may cause problem. Meaning, it is
> still not reliable, is it true?

        Most people with troubles in Allegro's RS274X can solve
        those issues by reading the fine manual.  I suspect the
        "dropped pads" issue is related to the software doing
        exactly what you tell it.  Granted, it is a little non-
        intuitive what exactly you should say...

        We have been using it for some time and after some teething
        troubles circa 1997, we have not had a reliability problem.
        Yet.
--

      Jeff Seeger                         Applied CAD Knowledge Inc
      Chief Technical Officer                  Tyngsboro, MA  01879
      jseeger "at" appliedcad "dot" com                978 649 9800

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