It depends on the board, if it's a low grade board then I use a 4 1/2" angle grinder and grind the solder on the back of the board. Some people take the IC chips off the green boards or the higher grade boards if they are the type that plug into a socket, my buyer says leave those chips on the board or it will be down graded, but he also pays very well for green boards. I think it will be up to your buyer weather or not to take the IC chips off of high grade boards. Hope this helps.