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:
Nov. 27, 2007
Filed:
Nov. 05, 2002
Applicants:
David M. Lee, Rockwall, TX (US);
Paul Lindars, Dallas, TX (US);
Christopher Ellis Jones, Arlington, TX (US);
James E. Flowers, Dallas, TX (US);
Martin P. Goetz, Dallas, TX (US);
Inventors:
David M. Lee, Rockwall, TX (US);
Paul Lindars, Dallas, TX (US);
Christopher Ellis Jones, Arlington, TX (US);
James E. Flowers, Dallas, TX (US);
Martin P. Goetz, Dallas, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H01L 41/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a method of manufacturing a multi-frequency surface acoustic wave (SAW) device on a common piezoelectric substrate. The method features varying the resonant frequency of waveguide elements of the SAW device using a single etch step. The etch step removes a sub-portion of multiple layers of conductive film disposed on the substrate.