On 06/25/2017 11:41 AM, Rob Jarratt wrote: > 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?
As mentioned, I use the toothbrush to scrub the pads "clean" of any leftover alloy+solder mixture, then place the part, tack the corner leads into place with a bit of solder, then flow solder across all the leads and clean up with a bit of solder wick. I've done 0.5mm QFP parts this way without issue. Some use a bit of Blu-Tack under the package to hold it in place, but I've never found that to be necessary. There are several YT videos on this technique, including, I believe, Dave's EEVBlog. It's easier than it looks. --Chuck
