[SI-LIST] Re: Flux
- From: "Rich Peyton" <p2rich@xxxxxxxxxxxxx>
- To: <degerstrom.michael@xxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Fri, 4 Jan 2002 11:32:21 -0500
I'm referring to the effects that Flux has on interconnections between the
signal paths when soldering has to be done. Specifically referring to " No
Clean" solder does leave a film/gummy residue behind. The Spec on this
particular "No Clean" solder passed Bellcore TR-NWT-000078 spec, but that
spec was replaced by Bellcore-GR-78-CORE spec. Now I don't have either spec
so maybe the newer spec tighten up the allowable SIR ( surface Insulation
Resistance )?
Rich
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Degerstrom, Michael J.
Sent: Friday, January 04, 2002 11:05 AM
To: p2rich@xxxxxxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Flux
Rich,
Could you please elaborate on your comments below? Specifically,
what does flux or other material have to do with signal integrity?
I'm envisoning a film left on the surface of high speed microstrips
that contributes to loss.
Mike
> -----Original Message-----
> From: Rich Peyton [mailto:p2rich@xxxxxxxxxxxxx]
> Sent: Thursday, January 03, 2002 10:22 AM
>
> Signal Integrity was improved with both cleaning processes
> but there was a small percentage that still had
> contaminates/film left behind which had effects on high speed
> testing ( Kester being the worst ).
>
> Any comments/ articles/ web info / data would be appreciated :-)
>
> Thanks to those who reply,
>
> Rich
>
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