The only problem with this method is that you can end up with intermittant
connections that are difficult to track down once you have the smt installed
over them.  I've ended up having to remove more than a few 100+ pin tqfp's
on my prototype boards to fix these.  (BTW, Hot air rework is *way* better
than anything I've used before doing this.(chipquick, etc...))  I'd like to
track down a US source for those via inserts that fit in a mechanical pencil
barrel...  Anyone have a link?  (anyway, I try to avoid putting vias under
components on the boards I don't send out to be produced.)
----- Original Message -----
From: "Mike Hord" <gaidinmd@HOTMAIL.COM>


> I've had reasonable luck using a wire, bent on the back, held
> in place with a clip, then sheared off with a nipper (diagonal
> cutter, dike, diagonal plier, whatever it is where you live).
> If you do it carefully, you can get a VERY flat via.  Note that
> the cut is made before solder is applied to either side.

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