[sdiy] What the heck is this for?

[Tom Arnold]

On Wed, Oct 29, 2008 at 05:37:57PM -0600, Joe Grisso wrote:
> > Most of those masks are for BGA parts - good luck soldering those with a hot
> > air pencil!
> 
> Hey, if someone wants to try, I've got a gold star for those who succeed. :-)
> 
> I always use a BGA station for that. Basically, a hot-air pencil
> mounted to a clamp stand with a custom tip on it, and a heater plate
> underneath. If we need to inspect the joints, we send it out for x-ray
> photos.

I've done BGA's with a hot plate.  Not recommended, about 1 in 3 solder
correctly but when the DSPs are pennies each it was worth attempting...

-- 
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 - Tom Arnold       -  Free Synth DIY webspace http://www.sdiy.org 
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