[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: gEDA-user: chip scale package soldering



BTW, to move parts of this size controlled I made a tool consisting
of a steel-needle and a pencile-size round wooden handle:
the tip of the needle is cone-frustum shaped with an end-diameter
of about 0.3mm. By placing near the part and roling on the tip
I can push the part around, eliminating the shake of my hand.

John Griessen wrote:
Mark Rages wrote:
On Fri, Jul 16, 2010 at 1:35 PM, Armin Faltl <armin.faltl@xxxxxx> wrote:

It has the pins beneath the package. I'll extend the pads about 0.5mm
outside (longer
with traces attached) as recommended, so will this trick work again?

Regards, Armin


Oh, those (QFN-like) packages are quite easy to hand solder, except
for the thermal pad underneath.   Much easier than fragile
narrow-pitch TQFP and TSSOP parts.

Is there any chance of getting them to align from
surface tension, or do you align it just right
and then flow/solidify one side for hand soldering?  Sounds like some
downward pressure on the CS package would be good, right?

John Griessen


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



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