Electronics Forum | Sat Nov 12 12:11:22 EST 2022 | micropak
Thank you Stephen... I also mistaken it with Immersion Silver.
Electronics Forum | Thu Apr 27 11:36:53 EDT 2000 | PeterB
Russ, We also use 'immersion silver' and have not had any impact on our processes. In fact there are a number of benefits i.e very flat pads (as good as electroless nickel/immersion gold but much cheaper and less unfriendly to the environment), good
Electronics Forum | Thu Jan 12 17:35:34 EST 2006 | russ
We use immersion Silver for all of our lead free PCBs. They come in the "silver saver" paper you speak of and we have found that they will tarnish after 7 days in the open enviroment. Even with this tarnish we experienced no reflow problems. We are
Electronics Forum | Wed Jul 26 08:14:07 EDT 2006 | mmjm_1099
This is for all boards not just our immersion silver PCBS. We went out bought a shrink wrap and anytime they get open the stock people have to rewrap them. We had to do this in order to get a couple new customers a couple years ago and now its just a
Electronics Forum | Fri Aug 22 02:40:31 EDT 2008 | kelson
Hi All, I have question regarding the PCB. My PCB is immersion silver furnished. I found out that the board is darkening from immersion silver to yellownish colour after exposed to the environment. From my finding, i think it may be caused by the su
Electronics Forum | Thu Sep 03 14:21:29 EDT 2009 | davef
Creeping corrosion occurs on bare metal. Most commonly, it is seen on boards with thin protective coatings [eg, bare copper, immersion silver, organic solderability preservative]. Look here: * enthone.com/docs/AlphaSTARCreeping.pdf * circuitree.com
Electronics Forum | Wed Feb 12 22:02:47 EST 2014 | rober864
Has anyone ever encountered contaminants from the immersion silver process, whether it be from the board house or not...as it relates to conformal coating. The failure mode is severe de-wetting of acrylic conformal coating. All over solver resist, to
Electronics Forum | Sat Feb 16 20:13:45 EST 2019 | sarason
Your silver immersion layer is dissolving in the solder. I presume this is what is meant to happen. But with copper tracks underneath that should be fine. Does your SAC305 cover all of the pad. If so no problem. If not then you will need to flux your
Electronics Forum | Tue Jul 06 11:58:44 EDT 2010 | baildl632
What type of finish are the PCB's? HASL, tin immersion, silver immersion,........we've seen all the above problems with HASL finished boards. Usually either reheating w/ a soldering iron or "burnishing" with a scotch brite pad has worked for us.
Electronics Forum | Mon May 24 16:34:03 EDT 2004 | Mark
I just got a report from MacDermid on Solder Mask Interface Attack Issue (SMIA) with Sterling Silver Process. Corrosive chemicals in the ImAg process get trapped under the soldermask edge and eat at the copper trace. They are experimenting with diffe
