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-----Best Nickel Plating process to solder with Pb free paste
Hello everyone,
I work at an automotive industry as Supplier Quality Engineer, and right now I have been struggling with one of our suppliers for more than 2 years. My suppliers sells me nickel plated terminals, (3-5 microns of sulfamate nickel plating). At least our requirements were only 3-5 microns are they comply with it, but over the years I have been experienced problems after our SMT process, many terminals result unsoldered (like 30% fallout).
What my company did since the beginning was to touch those terminals with a solder iron and fix them, but right now, since 3 years have happened, some of those products are returning with the terminals totally unsoldered, so we are having hundreds of warranties from our customer since consumer is changing the battery...
Our type of Nickel Plating is not specified, and I'm no expert in soldering, so any help on what type of plating process should help. My constraints are Pb-free past is required, and no major change to the drawing which specified bright nickel and 3-5 microns.
Best regards
Supplier Quality Engineer - Mc Allen, Texas, US
August 26, 2011
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