Electronics Forum: nickle plated reflow (Page 1 of 57)

Soldering to nickle plated kovar parts

Electronics Forum | Tue Mar 09 21:17:10 EST 2004 | gm05688

When soldering a metalized germanimum window to a nickle plated kovar part, I would like to understand the intermetalic. Does the nickle plate actually melt or will the solder(SN63)simple stick to the nickle and not cause nickle to reflow? Any one ou

Soldering to nickle plated kovar parts

Electronics Forum | Tue Mar 09 22:26:17 EST 2004 | davef

You should to be soldering to the nickel. The intermetallic is Ni3Sn4. "At relatively low temperatures, the tin-nickel layers form about as rapidly as the tin-copper layers do, but at higher temperatures their growth rate is distinctly lower. At 10

Sn plated

Electronics Forum | Sun Apr 13 19:50:20 EDT 2003 | yukim

Hi, We are placing (+) & (-) terminals in SMT. We have just changed the plating of them: from Nickel to Tin (Sn). During the trial, we used the same reflow profile as before changing, and the solder seems different: a bit cold, with some solder paste

Sn plated

Electronics Forum | Wed Apr 16 21:00:50 EDT 2003 | yukim

Hi Dave, thanks! The peak temp on the terminal device is about 210C. Some more questions: The soldering part of the terminal is about the same size as the PCB pad. We observe a lot of voids when we remove the terminal device, whice can be removed v

Gold plated PCB's

Electronics Forum | Sun May 05 22:18:20 EDT 2002 | ianchan

Hi mate, we had a crap experience (once...no more...) with gold plated over nickle (Au/Ni) PCB that had nickle contaminents in the PCB supplier's gold bath. the Ni caused batch-delivery of the PCB to us for mass production, to exhibit the visible s

Gold plated PCB's

Electronics Forum | Mon May 06 00:09:00 EDT 2002 | ianchan

as a followup thought, what is your current peak reflow deg-C? and reflow timing (sec)? Au/Ni calls for reflow temperature of 217 deg-C for solder fusion that produces secondary eutectic alloy. there was one time we thought 183 deg-C was the magic

Ni/Sn plated parts

Electronics Forum | Mon Jun 14 17:21:31 EDT 2004 | russ

How old are these parts? Sn/Ni plating is very succeptable to age and everything else. They are possibly tarnished. Also, what is your peak temp in reflow? It takes about 225 230 C to get good wetting to the underlying nickel. Russ

Ni/Sn plated parts

Electronics Forum | Mon Jun 14 16:48:34 EDT 2004 | jsmith01

Is any one else having a problem with parts that are Ni/Sn plated? The parts in question are a 1206 voltage suppressor form AVX. I am still using a stander 63/37 solder paste which is according to AVX�s web sight compatible with this plating. The

Gold plated PCB's

Electronics Forum | Fri May 10 01:41:04 EDT 2002 | ianchan

Steve, Hi mate, was doing some text book reading and saw this one paragraph that commented on the PCB fab plating could have residue chemistry inherent in the PCB if the fab process control isn't up to mark. such chemistry could surface to the Au/N

Gold plated PCB's

Electronics Forum | Fri May 10 13:52:46 EDT 2002 | pjc

FYI: not all OSP are created equal. I have had expierence, both good and bad w/ OSP boards. To qualify the vendor I would take a bare board and run it thru my oven twice on a reflow profile then flux it with NC flux and run it thru the wave solder fo

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