Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
Electronics Forum | Tue Apr 22 08:55:54 EDT 2014 | davef
I assume that you're talking about wanting to solder to metal tabs that are spot welded to the battery terminal. These tabs are not meant to be soldered. The metal was special selected for welding. In the old days, you could buy plumbing flux at th
Electronics Forum | Tue Dec 10 16:30:44 EST 2002 | Randy Villeneuve
Tin is pretty standard. I would doubt your leads are only Nickel plated as Nickel will oxidize very quickly.
Electronics Forum | Tue Dec 10 05:03:58 EST 2002 | praveen
We are having solder fillet finish issue. The solder looks like rough solder on the connector leads .The plating of the leads is Nickel (99.9% purity) and the PCB plating is imersion gold. I have tried fine tuning my reflow profiles an have used N2 i
Electronics Forum | Tue Dec 10 10:26:56 EST 2002 | davef
Questions are: * What is the current plating on the connector that is over the "plating of the leads is Nickel (99.9% purity)"? * What are the temperatures and durations at those temperatures that you read on these connector leads? * What solder allo
Electronics Forum | Tue Dec 10 22:18:32 EST 2002 | davef
Randy's correct. If you were soldering to nickel with WS609, you would be complaining about non-wetting, not lumpy solder flow.
Electronics Forum | Thu Dec 12 13:37:33 EST 2002 | gregoryyork
Have you considered the plating of the component could be Pb free as this generally wont be liquidus until 232C typically. seeing more and more of these unmarked components coming through so worth checking latest batch of problems on unmarked QFP's a
Electronics Forum | Wed Feb 03 22:47:48 EST 1999 | Chris G.
| Hi! | | Does anyone know any roadmaps for board plating materials. Especially I'm interested in finishes, which are plated onto copper. | | Teemu M�kiniemi | Teemu, For some time now, as I am sure you are aware, the PCB industry has been tryi
Electronics Forum | Sun Apr 05 00:23:53 EDT 2020 | researchmfg
1. To protect the nickel and copper under gold plating from oxidization before soldering. Gold plating can extend the PCB self-life and improve the solderability for 2nd re-flow. 2. Provide a good bonding strength. For Chip on Board process that Gol
Electronics Forum | Tue Aug 31 12:42:45 EDT 1999 | Charles Barker
****************************************** ***************** HELP! *************** ****************************************** We are having a special ceramic smt board made. The boards are 16-up arrays that have smt pads on both sides. Only thre
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