Sony DVP-S300, Training Manual

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4. Remove the blobs of Chip Quick by heating and removing with a solder
sucker.
5. The remaining Chip Quick is removed with a solder wick. Move the
wick in the same direction as the lands of foil.
IC Installation
Once the solder and bridges are cleaned off with a solder wick, the new
IC can be installed. You must prevent static charges from damaging the
new IC by using a grounded wrist strap. The amount of static electric you
generate depends upon the humidity level and the clothing worn that day.
Some days you will not generate enough static electricity to damage the
new IC.
To solder all the IC leads without creating bridges, you need a constant tip
temperature soldering iron.
The constant tip temperature makes soldering uniform and increases the
speed of the soldering so you don’t have to resolder missed leads. Since
these constant tip temperature irons have a 5-10 second warm-up time
there is no reason to leave these irons on when in use.