Electronics Forum | Wed Mar 22 12:53:43 EST 2000 | David Spilker
Be careful if you use Ni/Au. The "black pad" phenomenum can be crippling. We moved from Ni/Au to OSP because of it. I also don't want to return to the lack of flatness of HASL.
Electronics Forum | Wed Jun 06 16:04:02 EDT 2001 | pteerink
Greg, Need to give more to get more! What are the details? What are the problems you are seeing exactly? What type of part are you trying to place? What type of machine are you using? What type of vision recognition? What type of PCB finish? Phil
Electronics Forum | Tue Apr 09 05:36:27 EDT 2002 | lhudson1
Silver in the paste is present to minimise any negative effects of silver in the pcb finish or component terminations. 2% Ag prevent silver leaching thus giving a more reliable joint.
Electronics Forum | Thu Jun 22 00:16:24 EDT 2006 | Gman
Hello, Has anyone had issues with voiding while using Imm Silver PCB finish. Does thickness of silver, contamination of the plating bath or other factors if you come point out cause voids due to the plating.
Electronics Forum | Mon Jul 12 13:24:38 EDT 2010 | tate350
Like robdg3 said, just check your paste spec and define your reflow profile accordingly. There should not be any major difference in reflow profile due to PCB finish.
Electronics Forum | Fri Jun 03 16:00:44 EDT 2016 | davef
"aerospace" + "harsh environment" = NASA NASA BGA Guidelines - chrome-extension://gbkeegbaiigmenfmjfclcdgdpimamgkj/views/app.html
Electronics Forum | Wed Mar 11 17:52:24 EDT 2020 | slthomas
Anyone here actually join the chat? I took a look at the feed after the fact. Mostly stuff that we've talked about here a lot over the years, in a little more concise package.
Electronics Forum | Thu Oct 12 08:46:16 EDT 2000 | T Jones
Several online PCB fabrication quote forms offer SMOBC as a surface finish along with HASL, Ni/AU, etc. How does one specifify SMOBC for traces and untented vias, and elctroless Ni/Au for smt pads? Are these processes mutually exclusive? Or can I g
Electronics Forum | Tue Dec 15 10:16:55 EST 2015 | mbb
I had a problem with PCB pads: soldering process couldn't be performed because soldering pads of component in the PCB are oxydized. Is there any solutions to eliminate the corrosion on the pads in order to avoid there scrap because we 're talking abo
Electronics Forum | Fri Jan 14 08:42:47 EST 2005 | Jim Zanolli
We are performing testing for lead free connector finishes. We want to run solderability tests on a series of lead free connector plating options in a series lead free PCB's. I need some advice on the most popular lead free PCB finishes. I am aware
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