The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2007
Filed:
Jan. 15, 2004
Ismail Emesh, Gilbert, AZ (US);
Ismail Emesh, Gilbert, AZ (US);
Novellus Systems, Inc., San Jose, CA (US);
Abstract
An apparatus for performing an electrochemical process on a surface of a workpiece comprises a platen assembly comprising a support platen, an electrolyte distribution plate, and a first conductive layer intermediate the support platen and distribution plate and configured to be coupled to at least a first potential. A carrier is configured to carry the workpiece and position the workpiece proximate the electrolyte distribution plate. A reservoir delivers an electrolyte to the electrolyte distribution plate. At least one contact separate from the platen assembly engages a peripheral region of the workpiece for coupling the workpiece to a second potential.