On 4/23/07, Richard Prosser <rhprosser@gmail.com> wrote:
> Forrest,
> You could try running a "blob" of solder down both sides of pins. If
> you get enough solder in place then the thermal inertia is enough to
> keep it molten while you pull the part (using something that will grip
> it at the ends).. But you do need a bit of space each side and the
> part is likely to be damaged and you can have a bit of a clean-up job
> to do afterwards.
>

This method works well.  To keep from damaging the board, try this variant:

Grip the part with a needle nose pliers (add rubber bands on the
handles so you can let go).  Flip the board over. Now attack the pins
with a row of solder on each side and brisk movement of the iron.
When all the solder melts at once, the chip drops out with the weight
of the pliers.  Clean holes by heating them up, then applying a puff
of compressed air via lungs and a small straw.  No need to clean the
holes to spotless perfection, just clear them and insert the new part.
 Add flux, reflow, done.

Regards,
Mark
markrages@gmail
-- 
Mark Rages, Engineer
Midwest Telecine LLC
markrages@midwesttelecine.com
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