[TriEmbed] soldering oxidized pins - QFN part

[Brian]

That's what drove my H2SO4 (battery acid) suggestion.  QFP leads are 
probably tin-plated copper, so the most likely oxide is tin oxide. 
Acetic acid (vinegar) and salt is good versus copper oxide, but not as 
effective versus tin oxide.

-B

On 1/27/2016 1:30 PM, Shane Trent via TriEmbed wrote:
> What about a week acid (vinegar)? Here is an Instructable using salt and
> vinegar to clean copper wire. Or you could use a more aggressive flux.
>
> http://www.instructables.com/id/How-to-perfectly-clean-wires-in-minutes/
>
> Shane
>