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:
Jan. 29, 2013
Filed:
Apr. 30, 2009
Chun Christine Dong, Macungie, PA (US);
Richard E. Patrick, Tamaqua, PA (US);
Gregory Khosrov Arslanian, Pipersville, PA (US);
Ranajit Ghosh, Macungie, PA (US);
Chun Christine Dong, Macungie, PA (US);
Richard E. Patrick, Tamaqua, PA (US);
Gregory Khosrov Arslanian, Pipersville, PA (US);
Ranajit Ghosh, Macungie, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
Described herein are a method and an apparatus for removing metal oxides from a substrate surface within a target area. In one particular embodiment, the method and apparatus has an energizing electrode which has an array of protruding conductive tips that are electrically connected by a conductive wire and separated into a first electrically connected group and a second electrically connected group wherein at least a portion of the conductive tips are activated by a DC voltage source that is negatively biased to generate electrons within the target area that attach to at least a portion of a reducing gas that is present in the target area to form a negatively charged reducing gas that contacts the treating surface to reduce the metal oxides on the treating surface of the substrate.