Electronics Forum | Wed Sep 16 11:09:42 EDT 2009 | clampron
That will definately cause a shorter tip life. The high tin in the alloy along with the higher temps are probably your culprit. We have noticed a degredation it tip life when we changed from leaded to RoHS on standard PCB's. Good Luck Chris
Electronics Forum | Tue Sep 22 14:18:27 EDT 2009 | davef
They could be correct about the silver if it weren't such a small portion of the connection. Study "electrochemical series of metals" to understand how metals react with each other.
Electronics Forum | Thu Nov 13 20:38:37 EST 2014 | davef
I have used glass marbles. I'm not excited about the prospect of you putting metals into your solder pad because of the corrosiveness of tin.
Electronics Forum | Wed Nov 26 10:10:13 EST 2014 | swag
Reseat all the connectors on the cards make sure pins are clean and no corrosion. Not sure what to say about current, etc. There is or was a place on the east coast that repairs these cards. Can't remember who it is - sorry not much help with that
Electronics Forum | Sun Mar 15 23:02:16 EDT 2015 | louisg
Thank you Dave! Does that imply that test socket cleaners use a more aggresive/corrosive activator to remove the oxides?
Electronics Forum | Thu Aug 25 18:14:10 EDT 2016 | davef
Shawn ... I believe you. I believe what you're saying. I don't believe that you received the metals that you ordered. From the way it looks I'd guess that you have no nickel and that you're seeing copper corrosion.
Electronics Forum | Thu Nov 16 09:26:11 EST 2017 | jandon
Water soluble fluxes can be highly corrosive. Make sure that your new spray fluxer can handle your flux type.
Electronics Forum | Thu Nov 16 21:25:59 EST 2017 | jandon
SonFlux EZ is not suitable for water SOLUBLE flux. SonoFlux Servo can be equipped with parts that whitstand corrosive water soluble fluxes. SonoFlux Servo was about 19k€ in 2011 (including installation).
Electronics Forum | Wed Nov 29 21:04:32 EST 2017 | davef
Yes, "corrosion" should be on your buyers spec for ESD mats. ESD mats are another one of those sneaky little gotcha things, where it's easy to think that all blue mats are the same. Kapon tape is another one where you can't purchase strictly based
Electronics Forum | Tue Feb 23 08:46:11 EST 2021 | dianau
Hello, I have a topic with vias discoloration(that's what supplier said) and I don't know if it's an corrosion problem or something else. I believe that maybe the PCB's are not storage properly. I must mention that aren't any problem at soldering. D
