Replicas - was Re: *** Ideas needed for developing interactive

From: Peter C. Wallace <>
Date: Sun Sep 12 23:37:08 2004

On Sun, 12 Sep 2004, William Donzelli wrote:

> > With both sides in play, that seems likely, but a 12"x12" board is going
> > to be pricy (at least there won't be many through-holes, just vias; those
> > things add up).
> Exactly. I think a six layer board would be needed, but maybe with some
> extremely optimized routing, maybe a four layer. Either way, I doubt there
> would be a whole bunch of unused real estate left (or money in your
> pocket).
> William Donzelli

I think its doable on single sided 12" square or so but I wouldn't know for
sure until I tried a small piece

We pay about $.33 per sq inch for 4 layers, maybe $.45 for six layers so I
doubt the PCB would be more than $50-70, especially if I let it hitchike
on one of our production mixed panels. Routing would be a pain, my guess is
that it would take 6 layers if autorouted but probably 4 like you say if
carefully placed and hand routed. BTW none of our current PCB vendors count
vias or holes anymore when quoting, only total area.

Peter Wallace
Received on Sun Sep 12 2004 - 23:37:08 BST

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