Electronics Forum | Wed Sep 09 17:24:49 EDT 2020 | kumar
For Conformal coating machine to mask the components which material(silicon or SS) make masking boots is beeter interms of Cost,cycle time,Reusable lifecycle
Electronics Forum | Wed Sep 09 17:36:15 EDT 2020 | waxler
I have used Kinnarney Rubber Co Inc, PO Box 37 450 Main St in the past.
Electronics Forum | Tue May 12 22:54:46 EDT 2009 | davef
Did the board fabricator forget to apply the nickel undercoat?
Electronics Forum | Mon May 18 08:34:08 EDT 2009 | davef
It's happened perviously. If that happens, there is a widespread solderabily issue, not just on selected pads.
Electronics Forum | Fri May 15 19:08:25 EDT 2009 | jlawson
Ammonia based masks can create solderability issues after they are removed. You can get non-ammonia based latex mask material but down side is slower cure and cost a little more as they have higher levels of latex etc
Electronics Forum | Tue May 12 06:44:16 EDT 2009 | jhk71
We do a conformal coating for a customer with copper-nickel-gold pads on his board. The pads are masked prior to coating with a standard gel, containing ammonia. After thousands of boards, being processed like this, now the gold pads seem to be less
Electronics Forum | Mon May 18 02:22:34 EDT 2009 | jhk71
Unfortunately I have no information about the metal layers and the processes. I only see the effect. Is it possible or common that the nickel undercoat could have been forgotten?
Electronics Forum | Tue Oct 16 15:51:05 EDT 2007 | davemfg
This is the source where we have gotten this type of things http://www.kinnarney.com/
Electronics Forum | Wed Oct 17 16:26:12 EDT 2007 | vargas_s
Dave, that's exactly what I've been looking for. Many thanks.
