On 09/12/2010 08:39 PM, John Doty wrote:
On Sep 12, 2010, at 1:49 PM, Rick Collins wrote:
Sounds suspicious. Are you sure you aren't talking about an assembly with
boards and a case? Bolts aren't normally
considered vias. ;^)
No, I'm talking about a narrow board with two rigid parts at the ends and a
flexible part in the middle. The rigid parts had
more layers: that's how they got to be rigid.
It lived inside a cryostat, with circuitry that ran cold at one end, and
circuitry that ran warm at the other.
The point here is that the insulating planes are layers also: they need
representation in the board description. They have
their own shapes and material properties. And I think the only way to do
blind/buried vias, buried components, and odd boards
like this in a non-kludgy way is to treat the insulating planes as layers, each
with its own geometry.
Sure. And there's the other near term use for insulator: additive printed
conductive and insulating inks
for interconnect and even semiconducting...
John G
_______________________________________________
geda-user mailing list
[email protected]
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
