Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Involving measuring – analyzing – or testing
Reexamination Certificate
2007-02-06
2007-02-06
Wilkins, III, Harry D. (Department: 1742)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Involving measuring, analyzing, or testing
C205S101000
Reexamination Certificate
active
10627684
ABSTRACT:
The concentration of a leveler in a plating liquid that is used by a plating apparatus for filling metal such as copper in interconnection trenches and holes defined in the surface of a semiconductor substrate or the like is determined based on a peak area (Ar value) in a peel-off region of the plating liquid measured according to a CV or CVS process.
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Freitag et al., Plat. and Surf. Fin., 70(10), 1983, pp. 55-60.
Hongo Akihisa
Isayama Yasushi
Kaneko Hiroyuki
Kimizuka Ryoichi
Maruyama Megumi
Ebara Corporation
Wenderoth , Lind & Ponack, L.L.P.
Wilkins, III Harry D.
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