On 16/12/2010 21:12, Nathan Nottingham wrote:
> I can't offer as much as others in contributing to the list, but hopefull=
y I can brighten someone's day with my (self-inflicted) misery...
>
> My day has gone something like this:
>
> 1.) Removed a ~1000 ball (0.6mm) BGA GPU
> 2.) Cleaned old solder off board and chip
> 3.) Used a stencil to replace lead-free solder with leaded solder
> 4.) Aligned BGA back into place and started to heat gun it
> 6.) Decided it could use more flux so reached for the nearest syringe
> 7.) Injected a bunch of Chipquik SMD 291AX solder paste between the chip =
and the board
>
> > From now on, I'm storing the solder paste very far from my flux.  :)
>
> - Nate

Ouch! I understand how that could be a tad depressing.. :-)
It's so easy to make silly mistakes when reworking or populating boards=20
though, especially if you're a bit tired - I managed to put a SMD=20
tantalum the wrong way round the other day, fired the board up and=20
couldn't work out why nothing was working, even got the hot air gun and=20
removed a PIC and a few other components, before working out what it=20
was. Sorted it out, then did exactly the same thing again later on with=20
another one on the same board.. :-)
All good fun..


--=20
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