[PCB_FORUM] Re: Planes: Negative vs. Positive?

The biggest value of negative planes is smaller artwork file size. Also
I believe that it processes much more quickly at a fab house. The
downside is that your library must be very accurate, because you won't
see any flashes until you take it into a third party CAM tool, and that
could be too late or impossible to catch a problem.
Positive files are larger, but what you see is what you get.

________________________________

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Bob McCreight
Sent: Thursday, July 19, 2007 9:51 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Planes: Negative vs. Positive?


The design team I work with is split one which to use, negative or
positive planes.
What are the pros and cons of each? What do most people prefer to  work
with?
We are currently using 15.5.1 but evaluating 16.x for possible future
migration.
   
  Thanks for your feedback.
   
  Bob McCreight, C.I.D.

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