Re: gEDA-user: Can't route

[Andy Peters <devel@xxxxxxxxx>]

On Jul 15, 2007, at 9:01 AM, Stephen Williams wrote:

> DJ Delorie wrote:
>
>> In theory, via-in-pad lets you bring an extra row out on the top
>> layer.  It might mean the difference between 12 and 14 layers.
>
> Also, if you avoid masking the bottom side of the via, you suddenly
> have scope access to every pad of the BGA, which I've found to be
> amazingly useful in my day-job work. (No I didn't make those boards,
> and no they were not done with PCB.)

Bringing all balls of an FPGA out to vias is very useful for those  
last-minute green-wire ECOs.

One problem is that many tools will flag a "single-node net" as a DRC  
error.

-a


_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user