Electronics Forum | Sun Aug 13 08:54:19 EDT 2006 | davef
electrochemical migration What flux are you using?
Electronics Forum | Thu Dec 19 02:16:19 EST 2019 | sssamw
if use more aggressive paste,be careful risk of electro-chemical migration
Electronics Forum | Tue Apr 20 20:11:58 EDT 2004 | davef
First, how oxidized are these solder balls? Will the take solder using your routine flux / paste? Second, on restoring solderability, the three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinn
Electronics Forum | Mon May 10 20:46:25 EDT 2004 | davef
The three basic methods you can use to restore solderability on components are: * Highly active fluxes in a retinning operation. * Surface stripping chemistry and then a standard retinning operation. * Electrochemical conversion chemistry and then a
Electronics Forum | Mon Nov 08 14:18:10 EST 1999 | John Thorup
Reduced Oxide Soldering Activation is an electrochemical method of restoring the solderability of surfaces. Searching the archives of IPC technet and this forum will reveal more details. John Thorup
Electronics Forum | Thu Oct 21 13:53:40 EDT 1999 | John Thorup
Jacob The most comprehensive book on soldering I have seen is Soldering In Electronics by R.J. Klein Wassing and available from Electrochemical Publications in the UK. www.elchempub.com Another is Solders and Soldering by Howard Manko from McGraw-Hil
Electronics Forum | Mon Jan 28 20:06:52 EST 2002 | davef
Sounds like an interesting project. In Euroland and Japan, there are political moves with no scientific basis afoot to exclude lead from electronic products. There is a HUGE body of knowledge on the topic. For instance, Electrochemical Publication
Electronics Forum | Sat Feb 02 09:33:33 EST 2002 | davef
�8.4.2, Cracking Of Soldered Joints in the epic "Soldering In Electronics" by RJ Klein Wassink [Electrochemical Publications,ISBN 0 901150 24 X] covers cracking differented by: * Overloading * Creep * Fatigue You can't go wrong by starting there.
Electronics Forum | Fri Aug 16 00:50:04 EDT 2002 | caldon
Dave- once again you are correct. ACI/Empf (www.aciusa.org or http://www.empf.org) have a process to electrochemically revert the process back to a usable form. contact Greg Wood at ACI 610-362-1200. Cal
Electronics Forum | Fri Feb 28 12:08:07 EST 2003 | davef
Paul We don't like to mix metals on press fits. Yano, we do gold on gold or solder on solder, but we don't mix metals [except with imm silver / tin] to avoid electrochemical corrosion. Is that bad information or does AMP think that's not a problem
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