[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: gEDA-user: orthogonal lines



Thanks

Olgierd

On Fri, 2005-07-29 at 21:04 -0400, DJ Delorie wrote:
> >         I've seen in manufaturated boards that in different sides of
> > the pcb the lines or tracks go horizontal and the other side
> > vertical, then making 90° angles in between. I guess that's made for
> > minimizing crosstalk between tracks, but, how effective is that ?,
> > does anybody have solved interferences or noises problems with that
> > technique ?
> 
> Actually, that's a side-effect of the way the previous generation of
> auto-routers worked.  PCB uses a newer technology, so does not need to
> have dedicated direction layers.
> 
> Traces on opposite sides are more likely to be isolated by the ground
> and power planes that traces on the same side that are parallel and
> adjacent anyway.