I'm not sure this is what the OP was trying to do, but there is surely 
an easier way of stitching ground planes.   Starting from a ground node 
draw a track to the location of the first via, right click to place a 
via, move to the position of the next via, right click to place a via, 
and so on.   When you create the two ground planes the stitching track 
will effectively disappear on both sides, and the two sides will be 
electrically bonded together.   It worked for me at least :).

Regards,

Robert.

On 24/08/2010 23:59, Alain Mouette wrote:
> I was doing a Radio UHF transmitter this month and having viaa in the
> ground place was mandatory. I finaly found that is is *very* simple:
>
> * In this example, ground id mostly in the bottom layer
> * start a track in the botom layer from a nearby ground track
> * change layers so that a Via is added
> * double-click to end the track
> * go back to the bottom layer and do it again, many times :)
>
> It is fast enough, and easy.
>
> Alain
>
> Em 24-08-2010 09:33, James Moody escreveu:
>>
>>
>> A number of components I've come across lately (DC motor controller
>> chips, ESD protection devices, for example) have a thermal or ground pad
>> underneath the chip. This requires that a large pad be included in the
>> footprint, and the usual recommendation is that several vias are used in
>> this pad to connect it to the ground layer. This is also part of the
>> thermal management scheme.
>>
>> For example, if you look at page 10 of the datasheet for the Allegro
>> A4983, it describes how to lay out the board. It shows 9 vias in the
>> under-chip pad used to aid in solder flow and heat transfer.
>>
>> My first thought for how to do this in KiCad was to define a bunch of
>> vias on the board. My second thought was to change the module so that
>> the large pad was actually several small pads butt up against each
>> other, tiled together to make one large pad, and have each pad be a
>> through-hole style pad with a very narrow drill.
>>
>> Is there a better approach or feature I've missed?
>> Thanks.
>> --Jim
>
>
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