Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Depositing predominantly single metal or alloy coating on...
Reexamination Certificate
2002-08-12
2009-08-04
Ryan, Patrick (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Depositing predominantly single metal or alloy coating on...
C205S091000, C205S104000, C205S119000, C205S148000, C205S176000
Reexamination Certificate
active
07569131
ABSTRACT:
A method for multi-layer electrodeposition in a single bath is also provided. A substrate is immersed in a bath. An electrodeposition operation is initiated for depositing a first layer of material on the substrate. The electrodeposition operation includes agitating the bath and applying current pulses. The electrodeposition operation is later altered for depositing a second layer of material on the first layer, where the second layer is of a different composition than the first layer. In the altered mode, the current density is changed for altering a composition of material deposited on the substrate, the duration and/or frequency of the current pulses are altered, and the bath is agitated at a different rate of agitation.
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Hixon-Goldsmith April Dawn
Last Matthew Walter
Ramasubramanian Murali
Schaefer Rolf Beatus
International Business Machines - Corporation
Leader William T
Ryan Patrick
Zilka-Kotab, PC
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