Re: gEDA-user: stupid lead-free

[Dave McGuire <mcguire@xxxxxxxxxxxxx>]

On Jul 19, 2008, at 10:59 PM, DJ Delorie wrote:
> Soldering my very first bga-style packages (5 ball CSP).  On the
> hotplate, as usual.  At 3 minutes everything else melts and reflows,
> but nothing for the CSPs.  Hmmm, maybe they did and I didn't notice.
> Nope, they popped right off.  Sigh.
>
> So I place them again, add a few drops of paste around them so I know
> what temp they're up to, and heat them again.  I watch ONE of them
> carefully, and sure enough, about 30-60 seconds after my paste melts,
> the balls melt and the chips settle.
>
> Oh yeah, lead-free needs a higher temperature.  Sigh.

   Damn tree-huggers and their lead-free solder. ;)

   I'm going to start stockpiling real Sn/Pb solder.

           -Dave

-- 
Dave McGuire
Port Charlotte, FL




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