Freddie Torres

US Patent:

20150337452, Nov 26, 2015

Filed:

May 21, 2014

Appl. No.:

14/283667

Inventors:

- Armonk NY, US
Stephen G. Dutka - Poughkeepsie NY, US
Phillip W. Palmatier - Hopewell Junction NY, US
John R. Pennacchia - Wappingers Falls NY, US
Freddie Torres - Beacon NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

C25D 21/14

Abstract:

Disclosed is an apparatus wherein an electric circuit with at least a power source, two electrodes and a plating solution is established. The plating solution comprises a solvent and, dissolved in the solvent, at least a first metal and a second metal. The power source supplies a current to the electric circuit during a plating process. The amount of electric current is above that required to achieve the overpotential for plating the first metal, but below that required to achieve the overpotential for plating the second metal such that only the first metal plates. This apparatus can be implemented, for example, in conjunction with a plating apparatus or an analysis and dosing apparatus of an electrodeposition system. In the case of an analysis and dosing apparatus, additional components further allow for the addition of that specific metal back into the plating solution. Also disclosed herein are associated methods.