Logically therefore unless the fluxes are generically identical (eg RMA
which is pretty well specified by content rather than effect like no clean)
what ever is common across the two sites becomes a higher probability
candidate as cause:
Common things are
1) the fault
2) the device
3) Cleaning process??
4) or...
Regards
Mike
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ingemar Hernefjord
(KC/EMW)
Sent: Friday, September 01, 2006 8:40 AM
To: [log in to unmask]
Subject: Re: [TN] PbCO3
I have sent pictures on the residues to Steve. Unfortunately, I did not
have my ordinary microscope camera, will send better pics later.
Hmmm...Carbon Peak is too low for PbCO3..have to do FTIR..
You all give little pessimistic view of the situation. Maybe we had
better to replace the CBGAs with the residues...and hope there will be
no more.
The funny thing is that our factory in South Africa get such crystals
too, and they use different flux and different solder alloy.
Inge
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Joe Fjelstad
Sent: den 1 september 2006 01:50
To: [log in to unmask]
Subject: Re: [TN] PbCO3
Hmmmm.... It seems that lead solders might have another environmental
benefit, that is as a CO2 sink to help stem global warming... ;-)
Joe
(One must keep their humor in the ongoing lead-free fiasco... :-)
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