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.

Date of Patent:
Sep. 09, 2014

Filed:

Mar. 28, 2011
Applicants:

Rajiv K. Singh, Newberry, FL (US);

Arul Chakkaravarthi Arjunan, Gainesville, FL (US);

Deepika Singh, Newberry, FL (US);

Abhudaya Mishra, Gainesville, FL (US);

Inventors:

Rajiv K. Singh, Newberry, FL (US);

Arul Chakkaravarthi Arjunan, Gainesville, FL (US);

Deepika Singh, Newberry, FL (US);

Abhudaya Mishra, Gainesville, FL (US);

Assignees:

Sinmat, Inc., Gainesville, FL (US);

University of Florida Research Foundation, Inc., Gainesville, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/302 (2006.01); H01L 21/461 (2006.01); C09G 1/02 (2006.01); C09K 3/14 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
C09K 3/1463 (2013.01); C09G 1/02 (2013.01); H01L 21/02024 (2013.01);
Abstract

A method of chemically-mechanically polishing a substrate having a Group III-nitride surface includes providing a chemical-mechanical polishing slurry composition. The slurry composition includes a slurry solution including a liquid carrier and an oxidizer including a transition metal or a per-based compound. The slurry solution includes at least one component that reacts with the Group III-nitride surface to form a softened Group III-nitride surface. The Group III-nitride comprising surface is contacted with the slurry composition by a pad to form the softened Group III-nitride surface. The pad is moved relative to the softened Group III-nitride surface, wherein at least a portion of the softened Group III-nitride surface is removed.


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