In a message dated 11/20/2005 12:21:12 P.M. Central Standard Time,
jim@... writes:
How do folks here tin their boards after they're etched?<<
Normally, one "tins" the desired pattern on the copper, then uses an etchant
that attacks copper, but NOT tin/lead, so the pre-tinned tracks and pads
stay. But a solution made of a solid called "Tinnit" by one of the mailorder
PCB-stuff firms will "electrolessly tin" ANY copper dipped in it (per
instructions). I do NOT know how the pro-houses "solder-plate" the pattern on bare
copper, if this is electroless or done with DC power. Somebody?
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