In a message dated 12/1/04 4:36:36 PM Central Standard Time, [log in to unmask]
writes:

<< Selective electroless plating would be the ideal option but I don't think
 anyone has invented it yet... >>

Electroless plating involves a sequence of at least five successive chemical
immersion steps.  The amount of masking of the rest of the board would make
this impractical.  Conductive ink is a distinct possiblity as a large number of
"inexpensive" double sided boards are produced in the Far East with "Silver
Through Hole" paste in all the vias.

Denny Fritz
MacDermid, Inc.

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