Re: gEDA-user: Surface mounted circuits in hobby projects

[Steve Underwood <steveu@xxxxxxxxxxx>]

Mark Rages wrote:
> 2) Put a largish solder blob on each end of the part
>   
This is the *key* point in desoldering surface mount parts that most 
beginners mess up on.

People have a tendency to try to remove all the solder they can, as they 
are trying to remove a part. This is the exact opposite of what you 
should do. Molten solder is the conductor of heat from the iron to the 
board and components. If you want the heat to be conducted well, and 
spread around all the pins effectively, you add more and more solder 
until you achieve your goal. Once all the legs are sitting in molten 
solder the part will come free, and you can clean up the solder blobs 
quite easily.

Steve



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