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. 26, 2007
Filed:
Aug. 05, 2005
Applicant:
Yasuo Ebuchi, Tokyo, JP;
Inventor:
Yasuo Ebuchi, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/00 (2006.01); H01L 41/00 (2006.01); H01L 29/00 (2006.01); H01L 47/00 (2006.01); H01L 29/06 (2006.01); H02N 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A film bulk acoustic resonator includes a first electrode, a piezoelectric film disposed on the first electrode, a second electrode disposed on the piezoelectric film or disposed above the piezoelectric film, and an additional film disposed on and abutting the piezoelectric film. The additional film has at least one pair of opposite sides which are non-parallel with each other. The additional film includes a plurality of stripe-shaped openings.