Electronics Forum | Fri May 24 14:03:19 EDT 2002 | luvtolean
I have used both immersion silver and immersion gold and found that the immersion silver performed better in reliability studies for BGA's using 63/37 paste.
Electronics Forum | Mon Jun 18 10:20:14 EDT 2007 | ck_the_flip
Grant, i have heard of a few cases where the PCB is "reworked" by the PCB house, where the immersion silver that did not wet to the base copper was reworked by just putting immersion silver on top of the non-wetted immersion silver. I know your PCB
Electronics Forum | Mon Aug 07 13:27:40 EDT 2017 | dleeper
Are you seeing this on bare PCBs or after assembly? with Immersion silver, the finish over the copper should be very thin and uniform, that's the main advantage of ImAg. You should not be seeing excess plating filling vias unless: A)Its HASL, not
Electronics Forum | Fri Sep 12 16:56:13 EDT 2008 | ppcbs
We have a double sided board with Immersion Silver Plating. After reflow the Silver turns a yellowish color. It still wets good, and the yellow color will polish off with a pencil eraser. Has anyone seen this, or know the cause?
Electronics Forum | Tue Apr 20 20:09:30 EDT 2004 | davef
Companies that license immersion silver technology to board fabricators are: * Alpha Level Silver * Mac Dermid Sterling [Mac Dermid's TM]
Electronics Forum | Mon Jul 31 13:04:01 EDT 2006 | russ
Never changed anytihgn when we switched to Immersion silver. Have run approximatelky 10,000 16mil pitch devices to date with immersion Silver PCB, stainless, chempolished 5 mil stencil, and pbfree paste (OM338). Russ
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 | 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 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 | Tue Apr 28 04:06:25 EDT 2015 | anirudh_thabjul
thankyou for your answer. I came to know that "ENIG/ENEPIG is much costlier than Immersion Silver and Immersion Tin. So, my company doesn't allow me to use ENIG/ENEPIG". So, i will suggust my company to use Immersion silver or Immersion tin. Rega
