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Subject:	Re: [geda-user] shorted pads and the netlist in PCB
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References:	<04df2ed2-45a1-dff5-6f6c-d9b9d5fcca0f AT neurotica DOT com>
From:	"John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Message-ID:	<dd9c9656-d993-dd08-7738-0f69d1f908a8@ecosensory.com>
Date:	Tue, 10 Jul 2018 15:43:27 -0500
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On 07/10/2018 01:15 PM, Dave McGuire (mcguire AT neurotica DOT com) [via geda-user AT delorie DOT com] wrote:
>    When I have, for example, a surface-mount voltage regulator that has
> an exposed pad that's connected to ground, and I connect it to a plane
> for thermal reasons, I get complaints in the PCB Log window about the
> net that's connected to the plane being shorted to that pin of the
> component, because it's not reflected in the schematic (which may not
> have a "pin" for that pin) and is thus not in the generated netlist.


I make a custom symbol for such parts that has the pin number on that "exposed pad", just like any other pin.
I keep my life simple by always following the datasheet pin numbers.  If they do not give a number for a
central pad, I give it the last number plus one.  I never have seen multiple physically separate pads given the same number
in a datasheet, so I don't ever do that either.

I do use multiple overlapping pads to make odd shaped footprint pads, (except not any more using pcb-rnd, since pads can come from 
shapes or polygons).

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