Electronics Forum | Mon Feb 25 22:04:30 EST 2008 | davef
Here�s background on: * Electromigration: http://en.wikipedia.org/wiki/Electromigration * Dendrite: http://en.wikipedia.org/wiki/Dendrite_(crystal) For us, electromigration is the electrochemical process that creates dendrites. As a bonus, here's
Electronics Forum | Fri Jul 20 12:28:47 EDT 2007 | dwanzek
Good luck. Loctite will work just fine if other combinations of variables do not allow voiding or electromigration.
Electronics Forum | Sat Jun 23 07:34:26 EDT 2007 | davef
This sounds like a form of corrosion called electromigration. It creates cathode anodic filaments. They have a fern like shape because it is a metallic based crystal structure. Electromigration requires: * Difference of electrical potential * Chemica
Electronics Forum | Wed Jun 30 18:12:59 EDT 2004 | crios
Thanks for the information. davef, I will search for and review the Ion Chromatography for Ionic Cleanliness test method. This definitely is the test I want to perform. Do you know what the IPC specification is using this test method? The outside
Electronics Forum | Fri Sep 24 10:19:41 EDT 1999 | C.K.
| I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? | I believe you're referring to "ELECTROMIGRATION."
Electronics Forum | Fri Sep 24 17:14:29 EDT 1999 | Dave F
| I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? | Charles: Both Chris and CK are correct, according to the SMTnet "Dictionary:" "Dendrite. Metallic filaments growing by elec
Electronics Forum | Tue Sep 28 12:00:38 EDT 1999 | -KH
| | I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? | | | | I believe you're referring to "ELECTROMIGRATION." | Dendrites.
Electronics Forum | Tue Aug 31 13:16:23 EDT 2004 | GS
Hi Davef, if by using Omegameter 600 SMD I am reading 1,56 microgram NaCL/sqcm, what is the real value I am measuring? considering the 14 sensitivity ?
Electronics Forum | Mon Sep 06 08:38:44 EDT 2004 | davef
You're correct GS. Your's is a good cautionary tale for all NC flux users. Unfortunately, it's too easy to assume that boards and components are clean, even if our NC process is flawless.
Electronics Forum | Wed Sep 15 17:13:53 EDT 2004 | GS
Do anyone of you know if are there any Standard (IPC, JEDEC, etc) telling how much can be the acceptable level of TIC (ugr/cm2 NaCl equivalent) allowed on surace of Connectors, Components,before to be assembled on PCB ? Many thanks Rgds GS
