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:
May. 05, 2009
Filed:
Dec. 20, 2005
Applicants:
Clifford F. Knollenberg, Mountain View, CA (US);
Michael Kneissl, Berlin, DE;
Noble M. Johnson, Menlo Park, CA (US);
Inventors:
Clifford F. Knollenberg, Mountain View, CA (US);
Michael Kneissl, Berlin, DE;
Noble M. Johnson, Menlo Park, CA (US);
Assignee:
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/25 (2006.01); H03H 3/02 (2006.01); H03H 9/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a method of forming an acoustic based device, including forming an AlGaN region having a first surface and a second surface. A first electrode is deposited on the first surface of the AlGaN region, and then a second electrode is deposited on a second surface of the AlGaN-region. In another aspect of the present application, the AlGaN region is formed by an epitaxial layer overgrowth process.