Electronics Forum | Wed Jan 12 13:42:19 EST 2011 | dwonch
Hi All, I'm hoping there is a PCB expert or two hanging around. We're having some solderability issue on our boards. The finish is ENIG but it doesn't seem to be related to the finish process itself. We did SEM and EDX analysis and found aluminum an
Electronics Forum | Fri Oct 18 11:56:22 EDT 2013 | hegemon
You might try testing prior to using the Silicone if possible. Also you might try to qualify your cleaning process rather than the individual board. Clean an unrelated assembly and test it in your Ionagraph. Assuming it passes, Clean your subject a
Electronics Forum | Sat Mar 18 07:43:25 EST 2000 | Dave F
Larry: I'd like to see your angle increased generally and that could fix your problem. Lots of other things can cause skips, such as: * Wave height, your might be high with 2" of contact * Flux contamination, activity * Component contamination * C
Electronics Forum | Fri Sep 24 09:54:33 EDT 1999 | Charles A. Mohn
I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field?
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 11:12:32 EDT 1999 | Chris May
| I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? |
Electronics Forum | Fri Sep 24 11:13:33 EDT 1999 | Chris May
| 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 may mean DENDRITIC GROWTH (Dendrites).
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.
