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. 20, 2001
Filed:
Dec. 17, 1999
Applicant:
Inventors:
Glenn B. Alers, Santa Cruz, CA (US);
Kenneth Alexander Ellis, North Plainfield, NJ (US);
Timothy J. Klemmer, Sharpsburg, PA (US);
Robert Bruce Van Dover, Maplewood, NJ (US);
Assignee:
Agere Systems Optoelectronics Guardian Corp., Orlando, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/135 ; H03H 9/62 ; H01L 4/106 ; H01L 4/112 ;
U.S. Cl.
CPC ...
H03H 9/135 ; H03H 9/62 ; H01L 4/106 ; H01L 4/112 ;
Abstract
In accordance with the invention, magnetostrictive saw devices are provided with improved transducer structures for enhanced performance. In one improved device, the transducers are in the form of gratings with interconnected ends for reduced resistance and inductance. In another embodiment, the transducers are shaped to provide apodization. In yet a third embodiment, transducer performance is enhanced by patterning composite structures.