Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Utilizing brush or absorbent applicator
Reexamination Certificate
2005-07-05
2005-07-05
Wong, Edna (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Utilizing brush or absorbent applicator
C205S084000, C205S093000, C205S096000, C205S098000, C205S123000, C205S137000, C205S157000
Reexamination Certificate
active
06913681
ABSTRACT:
A cathode potential is applied to a conductive layer formed on a substrate having a depression pattern. A plating solution in electrical contact with an anode is supplied to the conductive layer to form a plating film on the conductive layer. At this time, the plating solution is supplied by causing an impregnated member containing the plating solution to face the conductive layer. Since the plating solution stays in the depression, a larger amount of plating solution is supplied than on the upper surface of the substrate, and the plating rate of the plating film in the depression increases. Consequently, the plating film can be preferentially formed in the depression such as a groove or hole.
REFERENCES:
patent: 3755089 (1973-08-01), Rapids
patent: 4287043 (1981-09-01), Eckert et al.
patent: 4595464 (1986-06-01), Bacon et al.
patent: 6143156 (2000-11-01), Zhang
patent: 54121237 (1979-09-01), None
patent: 4-154122 (1992-05-01), None
patent: 10-28798 (1998-11-01), None
Kaneko Hisashi
Matsuda Tetsuo
Okumura Katsuya
Finnegan Henderson Farabow Garrett & Dunner LLP
Wong Edna
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