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 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
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
Electronics Forum | Mon Feb 18 03:40:04 EST 2008 | akareti
Hi everybody, I found a defect varistor 0603 Tombstone and poor welting when we use component that terminal is Silver palladium (Ag/ Pd) with Leaded solder paste (63/37). Then we change alternative component that terminal is Ni/ Sn the result not fou
Electronics Forum | Thu Apr 29 22:50:41 EDT 1999 | Kelly Morris
Tombstoning 0805s w/palladium/platinum/silver terminations We are experiencing tombstoning problems on 0805 packages that have paladium/platinum/silver terminations. It comes & goes...... I�ve checked the reflow profile, and paste deposition and a
Electronics Forum | Mon Mar 30 08:11:22 EST 1998 | Derek Drabenstadt
Does anyone have any experience with fired-silver/platinum/palladium lead terminations soldering. I have had issues on nickel over gold plated boards but not with HASL'd boards with tin/lead pads. Is this the norm?
Electronics Forum | Tue Jul 06 00:13:13 EDT 2004 | indy
john, Immerson Silver is probably a good choice. What is your opinion abt Palladium silver. Does presence of Palladium affect the reliability of the pcb surface finish
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
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
Electronics Forum | Wed Apr 01 02:19:10 EST 1998 | Eldon Sanders
Yes, norm it is. Look back to February 98 discussion on this issue.
