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January 1998

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Subject:
From:
JoAnn Amerson <[log in to unmask]>
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Date:
Thu, 8 Jan 1998 14:28:35 +0000
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> When we say gerber does that include
> drill file, aperture list, etc? Is is
> gerber carry everything?

If you use the RS-274X Gerber format your aperture list will be embedded in the
spool files.  When we send a board out to be fabricated, we send the spool
files for all applicable electrical layers, solder screen and soldermask, a
drill file using the Excellon format and a readme file defining the Gerber
files and any additional information required to generate the artwork.

> Is there any real importance to specify
> to use certain cad package like allegro,
> etc? or this what we have to decide to
> standardize the gerber?

My guess would be that CAD package soesn't matter but I'm sure if I'm wrong,
one of our techno-wizards can and will correct me.  I'm still new at all of
this and our fellow TechNetters are a wonderful source of information.  If only
they wouldn't use $10 words when a 50¢ one will do.  ;-)

JoAnn L. Amerson
Design Librarian
Red Lion Controls, Inc.
E-mail: [log in to unmask]
Voice: (717) 767-6961 ext 6308

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