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| From [log in to unmask] Mon Mar 17 10: |
37:37 1997 |
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In a message dated 97-03-13 11:46:18 EST, you write:
>I have had suspicions that it may be due to some sort of galvanic couple.
>When one pad does not plate (due to contamination, oxidation or whatever),
>the pad that is electrically connected also does not plate. Perhaps the
>fact that one pad does not plate somehow changes the potential for
>everything electrically connected to it.
>
>
There is no question that if you have two pads electrically connected to each
other, and one, for any reason, is signicantly harder to plate to, you will
likely get near zero plating, and you then tend strongly to develope a
galvanic couple, (And they make such a nice couple together!.....Sorry!)
wherein the one pad sees only Hypophophite being reduced, and the other pad
gets all the Nickle. This is theoretically possible, but those of us who
live in labs and front lobbies rarely see it.
Rudy Sedlak
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