Electronics Forum | Sat Jul 28 08:34:12 EDT 2007 | davef
Sterling is a Mac Dermid [www.macprintedcircuits.com/final] product. They should be able to help make the distinction that you look to make.
Electronics Forum | Thu Jan 17 14:52:17 EST 2008 | gnath
All, Can someone help find a source for purchasing interleaving/packaging paper for Immersion Silver boards (sulfur free + ph neutral ..). Thank you!
Electronics Forum | Wed Sep 03 16:15:30 EDT 2008 | blnorman
Elemental is by SEM/EDX. The brown coloration does resemble the 3 micron photo. Again, if I'm picking up copper (our Ag plating thickness requirements are 0.05 micron to 0.12 micron following IPC 4553), maybe we do have a porous silver plating.
Electronics Forum | Wed Sep 10 16:53:46 EDT 2008 | realchunks
Actually it's not rare. I use several pastes from various manufacturers that add 2% silver in their leaded pastes. I would bet it's 2% silver.
Electronics Forum | Tue Sep 22 08:55:48 EDT 2009 | geb
Hi Chris, We've had another supplier say that it is the silver or combination of tin with silver that causes the corrosion. Would you agree?
Electronics Forum | Fri Feb 15 13:27:46 EST 2013 | adrianus
Hi Dave, Yes, that makes sense, are you sure that this standard covers Nickel Silver alloys as well? I've been asking Thanks,
Electronics Forum | Tue Aug 25 11:19:00 EDT 2015 | cyber_wolf
Adam, We have very recently experienced poor wetting on immersion silver as well. I would be very interested to talk to you offline, however I do not see the option to private message forum members.
Electronics Forum | Fri Sep 09 06:13:47 EDT 2016 | jswatt
is there a reason you are using a hard gold finish? could you swap toa silver finish?
Electronics Forum | Fri Aug 04 08:32:07 EDT 2017 | abruno1995
So i am a quality inspector and i am having issues with the immersion silver PCB. I have found the via holes to be somewhat filled and i wanted to know if anyone knew it this is a CLASS 1, 2, 3, ICP DEFECT or what it is at all?
Electronics Forum | Fri Jun 21 03:05:41 EDT 2019 | gregoryyork
The only problem with non silver tin bismuth is its very prone to shock damage and components fall off,literally. Would only recommend it with Silver additions and around 1%.
