TRABEM wrote in :

On Sun, 02 Oct 2005 17:14:27 -0400, maxfoo wrote:

On Sun, 02 Oct 2005 14:57:28 -0400, TRABEM wrote:

If someone would make an inexpensive dispenser for distributing the
paste evenly, I think the paste would be viable for soldering and for
rework. Without a means to dispense small quantities of paste on
demand, the paste method is truly useless (IMHO).


I use DigiKey #K439-ND dispenser tips with 0.016" hole. They screw
onto the end of the paste syringe. Works great. I don't hot-air refow,
but it allows for a small-volume dispense.

My technique is to run a bead down the center of the row of pins, and then
heat each pin briefly, or all at once if I have a proper tip for my Metcal
station. The solder wicks up to the pins, and there's maybe one bridge on
a 48-pin TSSOP.

Done it for years this way.


--
David Hatch
KR7DH