immersion plating

immersion plating

[ə′mər·zhən ‚plād·iŋ]
(metallurgy)
Applying an adherent layer of more-noble metal to the surface of a metal object by dipping in a solution of more-noble metal ions; a replacement reaction. Also known as dip plating; metal replacement.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Don: Once the seed layer of gold is deposited on the surface of the feature, the chemical reduction part of the reaction kicks in, as fewer sites for nickel became available for immersion plating, the only thing left for depositing is the autocatalytic part of the reaction from TWX-40.
Immersion plating relies on the exchange of metals and the exposure of underlying copper, therefore, immersion deposits are quite thin, usually less than one micron thick--just a scant thousand atoms or so.
Processes normally subcontracted by mediocre fabricators include silver-filled via, laser drilling, gold immersion plating, and sometimes testing.