Electronics Forum: silver and palladium (Page 1 of 13)

Palladium silver surface finish

Electronics Forum | Thu Aug 12 20:32:44 EDT 2004 | usdigital

Indy, We use Palladium silver surface finish parts for silver epoxy attached parts only. It is our understanding that this finish is not for solder, but only silver epoxy attach. I expect that is you problem. Dave

Palladium silver surface finish

Electronics Forum | Sun Jul 04 19:49:05 EDT 2004 | indy

Hello Everyone, We are having some problem with Palladium-Silver surface finish. We have ceramic components with the above surface finish. When we try to assemble these on Sn/Pb solder, we are observing open joints. If we reflow the compt for more t

Palladium silver surface finish

Electronics Forum | Thu Aug 12 18:06:09 EDT 2004 | SR

May I ask what component types you are using and who the suppliers are? FYI - If the components have exceeded their shelf life, they may have oxidized too much for soldering using low activity fluxes. Thanks and best regards, SR

Solder Paste with/without silver

Electronics Forum | Thu Oct 18 18:39:15 EDT 2001 | davef

Responding to your questions ... RELIABILITY OF 1% SILVER SOLDER PASTE: It�s as good as the next solder paste, all other things the same. Look at your back articles by Jennie Hang in SMT magazine. I want to say she wrote an article on the topic i

Palladium silver surface finish

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

Palladium silver surface finish

Electronics Forum | Fri Aug 13 16:54:20 EDT 2004 | davef

If the terminations on your components are not barrier plated, you must be very careful about the amount of time you stay above liquidous. As you'd expect, longer is not better. The longer you stay at liquidous, the more of the component terminatio

RoHS solders and silver termination inks

Electronics Forum | Tue Aug 30 09:24:08 EDT 2005 | Slaine

we manufacture a range of ceramic parts that have silver termination,there is already a small leaching problem (absorption of the termination by the solder in liquid form)with Sn62 that we live with, having to implement unleaded solder they are norma

RoHS solders and silver termination inks

Electronics Forum | Tue Aug 30 12:49:59 EDT 2005 | Ted

Slaine, We use a Pd/Ag thickfilm paste. Because of the leaching we had to start using solder pastes that have silver in it. For RoHS, we are using a solder paste with an alloy of Sn95/Ag05. We also have to double print the thickfilm pastes. I h

Ceramic subtrate with silver/palladium surface finish

Electronics Forum | Thu Jul 22 20:41:11 EDT 2004 | C.W

hi All, i have recently running a Ceramic board with silver/palladium surface finish, using Alpha Metal 63/37 WS solder paste, soldering meet IPC standard after reflow, however, the solder joint look grainy, not sure if there could be too much interm

Palladium poor wetting

Electronics Forum | Tue May 23 02:29:41 EDT 2006 | Loco

No suggestions, but we've also had problems with silver palladium. No wetting on reflow, when we tried handsoldering them, we could actually scrape off the whole finish and were left with a black unsolderable underground. It was just 1 reel, seems

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