Re: gEDA-user: General Layers questions

[Martin Kupec <martin.kupec@xxxxxxxxx>]

On Fri, Mar 18, 2011 at 01:20:43PM -0700, Steven Michalske wrote:
> On Fri, Mar 18, 2011 at 1:11 PM, Stephan Boettcher
> > The GUI must present footprints, vias, and hierachical sublayouts, both
> > in copy on write and in truly hierachical fashion.  But at the core,
> > they work all just the same. Then there will be no more question if some
> > feature is supported in elements or not, or how convoluted a via may be.
> >
> 
> I have had some convoluted vias for high speed signals.  different
> diameters on different layers, with different clearances from the
> surrounding planes.  And we really could have udes a DRC that checked
> if the blind via ended on top of another signal trace.....  High speed
> noise coupled on to that trace.

That is still ok, to consider it as 'composite object'.
There are just 2 problems.

1. The composite will really need different hole size on different layers.

2. There should be some clever DRC check added.

	Martin Kupec



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