Fellow Technetters,
Does anyone out there have any good comparisons or stories about some of the new
solders on the market.  I have been approached and am evaluating a couple of
different solders.  I'm trying to see what the "long term" benefits would be.
Extra pure solders 4-9's are good for how long before you get what you had in
the first place?  Phosphorous added solders are good for how long?  Benefits,
downfalls???  They all offer a good deal to switch and back with a guarantee in
the initial stages in defect reductions and dross generations, but where will I
be a year from now?  I currently use a standard grade of 63/37.  Can anyone shed
any light on my delima?

Jason Smith
Lexmark Electronics
Process Materials Engineer

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