Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2011-04-12
2011-04-12
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C310S341000, C310S346000, C333S189000
Reexamination Certificate
active
07924120
ABSTRACT:
A piezoelectric resonator includes a substrate and a thin-film section. The thin-film section includes a first thin-film section supported by the substrate, and an acoustically-isolated second thin-film section which is separated from the substrate. In the second thin-film section, first and second electrodes are arranged on the respective main surfaces of a piezoelectric film, and a vibration section is provided at an area where the first and the second electrodes overlap each other on the second thin-film section when viewed through in the film-thickness direction. The thin-film section further includes a heat-radiating film which is in contact with peripheral edges of at least the first electrode among the first and second electrodes defining portions of a periphery of the vibration section, and which extends from the peripheral edges to the first thin-film section when viewed through in the film-thickness direction.
REFERENCES:
patent: 6051907 (2000-04-01), Ylilammi
patent: 6396200 (2002-05-01), Misu et al.
patent: 6906451 (2005-06-01), Yamada et al.
patent: 7474174 (2009-01-01), Milsom et al.
patent: 2001/0054941 (2001-12-01), Shibata et al.
patent: 2003/0107456 (2003-06-01), Nishihara et al.
patent: 2004/0056735 (2004-03-01), Nomura et al.
patent: 2004/0263026 (2004-12-01), Wang
patent: 2006/0131990 (2006-06-01), Milsom et al.
patent: 2007/0152775 (2007-07-01), Fujii et al.
patent: 2007/0278899 (2007-12-01), Fujii
patent: 07-260660 (1995-10-01), None
patent: 2001-502136 (2001-02-01), None
patent: 2002-237738 (2002-08-01), None
patent: 2003-168953 (2003-06-01), None
patent: 2003-204239 (2003-07-01), None
patent: 2004-120219 (2004-04-01), None
patent: 2004-221622 (2004-08-01), None
patent: 2007-243361 (2007-09-01), None
patent: 2006/027873 (2006-03-01), None
patent: WO 2006/087878 (2006-08-01), None
English language machine translation of JP 2003-168953, published Jun. 13, 2003.
Official Communication issued in International Patent Application No. PCT/JP2007/070662, mailed on Jan. 15, 2008.
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
Summons Barbara
LandOfFree
Piezoelectric resonator and piezoelectric filter having a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piezoelectric resonator and piezoelectric filter having a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric resonator and piezoelectric filter having a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2704904