> This is probably how you would do it in KiCad as well. However, you
can assign 
> the same pin name when creating the footprint, so they will be
automatically 
> be connected (via ratsnest).


I recently did this under a BGA.  The problem started because there is
no grid alignment capability in PCBNEW.  So after my BGA was placed, I
found it extremely difficult getting the VIAs to go exactly centered
between the ball pads.  Yes I could use a smaller grid interval
setting, but then with this small granularity you still had to guess
where the center of the area was.   With a larger grid interval, I
could not get the grid multiple to coincide with the center of the
area without moving the part, and I found that difficult.


So I went back to the module editor, and put through hole pads between
the SMD pads, and gave them each a name and pin number identical to
the SMD pad they were to be tied to.  In the pad editor for such
through hole pins, I had to make sure the solder mask covered the
through hole pads, essentially making them vias.  When placing the new
part, the through hole pins became essentially unconnected vias, but
they were already in the ratsnest with a net code.  I just had to
connect them with a short track to the corresponding ball pad.   There
were a few cases where I ended up deleting the through hole pad when I
did not need a via there.  Then ultimately went back and updated my
library component with the deleted through hole pads from the board
copy of the component itself.


HTH

Dick



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