Electronics Forum | Tue Jul 13 16:35:25 EDT 2004 | Richard
Sounds like your Si plalladium finish has oxide on it from the firing or sitting around too long. I used to assemble LTCC and have had plenty of dealings with this matter. The best and easiest is to get an active type flux and solder paste. AIM makes
Electronics Forum | Thu Jan 17 20:09:43 EST 2008 | davef
"silver saver" paper It can be purchased as an industrial product: * corrosionvci.com/corrosion_control_vci_paper.htm * daubertcromwell.com/pdf/silverg.pdf * corrosionprotection.net/corrosion/proddetail.php?prod=silversaver48R * jamesdawson.com/Silv
Electronics Forum | Fri Feb 03 13:17:10 EST 2006 | amol_kane
also as an aside, make sure that the Imm Ag boards are stored in sealed bags with silver saver paper between 20-25 deg C and 40-50 % RH
Electronics Forum | Mon Aug 04 10:15:55 EDT 2008 | realchunks
Silver saver paper will work as well. Most board houses slip a sheet between your boards when they send them to you. Keep this paper with the boards and keep them sealed if possible.
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 | Tue Jul 25 10:04:22 EDT 2006 | russ
There reasoning is ignorance. They are most likely concerned about tarnish on PCB surface. We have let immersion silver PCBs sit out open for 10 days in a noncontrolled enviromnent. We had no issues with these assemblies and they were segregated a
Electronics Forum | Thu Sep 02 14:02:49 EDT 2004 | russ
Frank, We are currently running lead free for approximately 1 yr. now but no where near the volumes you have mentioned. We are about 5k units per month. I personally am in agreement with you as far as OSP. I also do not like white tin finish since
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