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Mail Archives: geda-user/2015/01/31/13:58:13

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Date: Sat, 31 Jan 2015 13:01:36 -0600 (CST)
From: mskala AT ansuz DOT sooke DOT bc DOT ca
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Re: Ground Plane Behavior?
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On Sat, 31 Jan 2015, Jason White wrote:
> That might be convenient, but I think it could be a bit of a "trap" so
> to speak. If you have large currents flowing from the re-flooded
> "hole" in the copper pour, you may not realize that their is an
> electrically poor connection (a single via) to the actual plane.

The same problem exists - but is probably worse - when part of the copper
pour is connected to the rest only through a very narrow gap, such as
between two DIP pads.  Unless PCB is going to do a proper finite-element
analysis to determine the resistance in such cases, I think it's okay to
let a single via be treated as a good enough connection to reconnect the
pour, and force the user to think it, as they are already forced to do.

-- 
Matthew Skala
mskala AT ansuz DOT sooke DOT bc DOT ca                 People before principles.
http://ansuz.sooke.bc.ca/

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