> When replacing components on an SMD board, I prefer to use a low-temp > fusible alloy such as "Chip Quik": > > http://www.chipquik.com/store/ > > A nice kit, but really, any low temp fusible alloy will work. I use > Cerrobend as a > powder, packed around the IC. > > http://www.csalloys.com/specifications.html > > I heat the board from the underside with a PAR38 halogen spotlight, which > raises the temperature to around the point where it becomes uncomfortable to > the touch. > > The part then just slides off; the IC pads (and the IC itself if you want to > re-use > it) can be cleaned with a toothbrush and the continued application of light > heating. > > All the parts around the IC are unaffected and soldering a new part is > straightforward. >
Thanks Chuck, I had seen some mention of Chip Quik. You say soldering a new part is straightforward, but I am not clear how that works, is the solder left behind on the pads so you just heat the pins? Regards Rob
