Ken -

IPC-D-356 is a data transfer language developed by the IPC to replace
Gerber.  It is a far more intelligent form of physical definition for
PCB/PWB. The only segment of the language that seems to have developed any
market support is the physical netlist that includes x, y and top, bottom
connectivity information for electrical test equipment.  Some CAD systems
are capable of generating the IPC-D-356 netlist, and most fabricators have a
CAM system that can generate this data from the Gerber files.

Jeffrey A. McGlaughlin, C.I.D.
Sr. PCB Designer
Battelle Memorial Institute
Columbus Ohio
[log in to unmask]





-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: Monday, August 06, 2001 5:38 PM
To: [log in to unmask]
Subject: [TN] IPC-D-356


Designer,
We normally put as fab note that "Use IPC-D-356 Netlist to Verify the
board before fabrication."

So, I have a question...
Is IPC-D-356 is a CAD (like Allegro/PADS) output file or something else?

re,
Ken Patel

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