Quote:
Originally Posted by ScottishColin
Apologies - my question wasn't clear.
I meant why is it best that I snip all the legs and de-solder them, rather than not snip the legs and de-solder the IC intact?
Thanks.
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If you snip the body you are then left with 16 individual 'one-pin' items to desolder. That's very easy to do, first time, every time. Melt the solder on a pin with one hand, remove the pin with tweezers in the other hand.
If you try to take the IC out intact you have to get rid of virtually every last bit of solder which might be holding the IC on because when you try to remove a complete IC you are trying to remove 16 pins all at the same time.
No matter how hard you try with your solder sucker there will be a little bit of residual solder left between the bottom of the wide parts of the IC legs and the top side pads which they rest on. If you don't crack that solder first (by pushing the IC from side to side) then when you try to take the IC off the PCB you may very well tear some of the top side pads off with it.