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.:

US 8278666 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 02, 2012

Filed:

Jun. 23, 2010
Applicants:

Narsingh B. Singh, Ellicott City, MD (US);

Sean R. Mclaughlin, Severn, MD (US);

Thomas J. Knight, Silver Spring, MD (US);

Robert M. Young, Ellicott, MD (US);

Brian P. Wagner, Baltimore, MD (US);

David A. Kahler, Halethorpe, MD (US);

Andre E. Berghmans, Woodstock, MD (US);

David J. Knuteson, Ellicot City, MD (US);

Ty R. Mcnutt, Columbia, MD (US);

Jerry W. Hedrick, Jr., Arnold, MD (US);

George M. Bates, Burke, VA (US);

Kenneth Petrosky, Severna Park, MD (US);

Inventors:

Narsingh B. Singh, Ellicott City, MD (US);

Sean R. McLaughlin, Severn, MD (US);

Thomas J. Knight, Silver Spring, MD (US);

Robert M. Young, Ellicott, MD (US);

Brian P. Wagner, Baltimore, MD (US);

David A. Kahler, Halethorpe, MD (US);

Andre E. Berghmans, Woodstock, MD (US);

David J. Knuteson, Ellicot City, MD (US);

Ty R. McNutt, Columbia, MD (US);

Jerry W. Hedrick, Jr., Arnold, MD (US);

George M. Bates, Burke, VA (US);

Kenneth Petrosky, Severna Park, MD (US);

Assignee:

Northrop Grumman Systems Corporation, Falls Church, VA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/15 (2006.01); H01L 31/0312 (2006.01);
U.S. Cl.
CPC ...
Abstract

The disclosure relates to a high purity 2H-SiC composition and methods for making same. The embodiments represented herein apply to both thin film and bulk growth of 2H-SiC. According to one embodiment, the disclosure relates to doping an underlying substrate or support layer with one or more surfactants to nucleate and grow high purity 2H-SiC. In another embodiment, the disclosure relates to a method for preparing 2H-SiC compositions by nucleating 2H-SiC on another SiC polytype using one or more surfactants. The surfactants can include AlN, Te, Sb and similar compositions. These nucleate SiC into disc form which changes to hexagonal 2H-SiC material.


Find Patent Forward Citations

Singh, Narsingh. (2012). Method and apparatus for growing high purity 2h-silicon carbide (U.S. Patent No. 8278666). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8278666

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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