member so as to prevent the plat- ing solution in the plating bath from contact with the first elastic member; and a second electrode disposed in the plating bath.

PLATING VESSEL .?%S. Patent 6428,662. Aug. 6,2002 D.J. Woodruff and K.M. Hanson, assignors to Semitool, Inc., Kalispell, Mont. In a reactor to electrochemically processing a wafer, an apparatus for providing processing fluid for immersion processing of at least one surface of the wafer compris- ing a cup for providing processing fluid for contact with at least one surface of the wafer; an overflow vessel disposed about the cup to receive processing fluid proceed- ing over the weir at the upper end of the cup; an inwardly directed support member disposed at and

in fixed positional alignment with the sidewall of the overflow ves- sel; and an outwardly directed support member disposed at and in fixed positional alignment with an exterior perimeter of the cup.

ELECTROLYTIC METHOD FOR

RECOVERY OF SILVER US. Patent 6,428,679. Aug. 6,2002 J Bourges, et al., assignors to Commisariat A 1’Energie Atomique, Paris, and Compagnie Generale des Matierels Nucleaires, Valizy- Villacoublay Electrolytic method for the selec- tive recovery and recycling of sil- ver from a nitric acid solution containing silver in the form of Ag (I) comprising electrodeposition of the silver in the form of silver metal and the redissolution of the deposited silver to give a final solution of Ag (I).

SYSTEM FOR REVERSING

ELECTROLYTE FLOW DURING

ELECTROPOLISHING

US. Patent 6,428,681. Aug. 6,2002 TA. Lorincz, assignor to Therma Corp., Inc., San Jose, Calif An electropolishing apparatus for polishing the inner surface of a pipe having both horizontal por- tions and nonhorizontal portions, the apparatus comprising an elec- trode; an electrolyte source for providing electrolyte flow through the pipe; a power supply for pulling the electrical element through the pipe is reversible.

ELECTROCHEMICAL POLISHING

OF ALUMINUM

US. Patent 6,428,682. Aug. 6,2002 JE. Lein, et al., assignors to Norsk Hydro ASA, Oslo, and Glamox Fabrikker AS, Molde, both of Norway A process for removing or reduc-

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72 Metal Finishing