Electronics Forum | Fri Aug 30 16:25:21 EDT 2002 | davef
Imm silver holds-up to multiple thermal cycles very well. The things, we guess, are happening to make imm silver tough to solder after heating and sitting are: * Oxidation of the silver. * Reduction of the co-deposited organic anti-tarnish [used in
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 | Thu Jun 08 07:56:34 EDT 2017 | jkitt84
In an excellent previous thread davef mentions brass should be plated prior to soldering to prevent zinc leaching from the brass. It is reported once the zinc leaches, the joint is weak. He recommends copper or nickel plating. Would silver plating w
Electronics Forum | Sun Mar 31 10:03:25 EST 2002 | Bob
Cheers Dave, to answer some of your questions. � The component lead is copper with a tin / lead coating. The pads are standard Copper / Nickel / Gold. � The solder is standard Tin / Lead / Silver (2%) We have a lab that can determine the composition
Electronics Forum | Fri Mar 01 03:16:01 EST 2013 | grahamcooper22
Solder paste flux formulation can make a difference when soldering to nickel silver...due to the alloy containing metals that oxidise easily like zinc and nickel then the flux has to be able to cope with the surface oxidation when the parts are in th
Electronics Forum | Thu Feb 14 09:24:58 EST 2013 | adrianus
Hello, We need information regarding the specifics of soldering Nickel Silver in a reflow process. Is there a specific process / flux / cleaning / Temperature curve / or whatever required in order to properly process parts from this material? Nicke
Electronics Forum | Fri Feb 15 13:27:46 EST 2013 | adrianus
Hi Dave, Yes, that makes sense, are you sure that this standard covers Nickel Silver alloys as well? I've been asking Thanks,
Electronics Forum | Thu Feb 14 09:41:03 EST 2013 | davef
Look here http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=64413 BR, davef
Electronics Forum | Thu Feb 14 10:52:18 EST 2013 | adrianus
Hello Dave, Many thanks for your quick reply, it certainly helps but do you have more specifics? For instance, like: Flux type, Temeparture curve, perhaps teh specific process has a name? Best regards,
Electronics Forum | Thu Feb 14 16:18:18 EST 2013 | davef
Adrianus: If your current reflow process is capable and in-control, don't change a thing. BR, davef
