I have a question to those, who solder their own PCB board on their own:
After soldering there are brownish solder flux residues left on the PCB board, which doesn't look pretty. One of my friends told me to dip the hole board into a bowl full of isopropyl alcohol, and leave there for a while, so these flux residues get dissolved.
My question is: are the IC-s water, or isopropyl alcohol resistant? I mean can I put a common DIP or TQFP AVR into a bowl full of isopropyl alcohol?
If not, then what do you suggest to clean the board?
Thanks for your answers.