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:
Jun. 30, 2009
Filed:
Jan. 16, 2006
Applicants:
Shinya Aoki, Minowa-machi, JP;
Kazuhiko Akahane, Tatsuno-machi, JP;
Yoshio Maeda, Fujimi-machi, JP;
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H01L 23/00 (2006.01); H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface acoustic wave chip formed with an inter-digital transducer entirely over a piezoelectric substrate. In the surface acoustic wave chip, the inter-digital transducer is extended to a rim of the piezoelectric substrate, and a partition section is provided all the way to the rim of the piezoelectric substrate to partition an electrode pattern to derive two of the inter-digital transducers.