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To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] Re: I won't do BGA's
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Comments:	In-reply-to Bob Paddock <bob DOT paddock AT gmail DOT com>
	message dated "Tue, 29 Nov 2011 20:26:13 -0500."
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Date:	Wed, 30 Nov 2011 10:50:36 +0100 (CET)
From:	karl AT aspodata DOT se (Karl Hammar)
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Bob Paddock:
...
> > At 25um there was remains from all tested fluxes.
> > At 50um water soluble and one of three "no-clean" fluxes left no traces
> > At 75um no fluxes was left after washing
> >
> > The above is for PbSn.
> >
> > There is a reference to [3], which is said to show that with suitable
> > layout one can get a stand-off distanse of 75-100um.
> 
> I'll add those references to my Get at the Library list, thank you for them.
> 
> I do wonder if those distances change for Lead Free?

The article writer supposed worse behaviour with lead-free.

Regards,
/Karl Hammar

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