surface mount soldering techniques

[Guest]

Has anybody got some surface mount soldering techniques

The first way I was taught to replace surface mount parts some years ago
(like 10 years ago).

How to replace surface mount parts.
(1) Take off the old part,
(2) Simultaneously heating and rubbing tined copper braid known as solder
braid using a standard hot iron to soak up any old solder,
(3) Clean up tracks with isopropyl alcohol and tooth brush,
(4) Then apply a trace of solder paste over the copper tracks from a small
syringe of paste,
(5) Then put the surface mount IC on top and blow hot air over it until the
paste melts and solders the part in place.

WARNING
One problem when you take off a part for the first time some people make is
they pull too hard and the tracks come away
THE PARTS ARE NOT HEAVY you just need the tiniest effort to remove the part
when the solder has melted.

One of the disadvantage of using hot air is some times you can easily "blow
off" other nearby components.
and found that one idea might be to use "solder paste & soldering iron"

[minnie]

Ever try chip quick?