Piezoelectric resonator, piezoelectric filter, and...

Details Piezoelectric resonator, piezoelectric filter, and... Piezoelectric resonator, piezoelectric filter, and...

2007-01-09

2007-01-09

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S189000, C310S326000

Reexamination Certificate

active

10656246

ABSTRACT:
A piezoelectric resonator includes a supporting substrate having an opening or a concavity, a vibrating section in which at least one pair of an upper electrode and a lower electrode oppose each other so as to sandwich an upper surface and a lower surface of at least one layer of piezoelectric thin film, the vibrating portion being formed over the opening or the concavity, and a heat dissipating film disposed over at least one of the upper electrode and the piezoelectric thin film so as not to cover the vibrating section.

REFERENCES:
patent: 5231327 (1993-07-01), Ketcham
patent: 5910756 (1999-06-01), Ella
patent: 6131256 (2000-10-01), Dydyk et al.
patent: 6150703 (2000-11-01), Cushman et al.
patent: 6215375 (2001-04-01), Larson et al.
patent: 6424237 (2002-07-01), Ruby et al.
patent: 6462631 (2002-10-01), Bradley et al.
patent: 6788170 (2004-09-01), Kaitila et al.
patent: 6828713 (2004-12-01), Bradley et al.
patent: 1 041 717 (2000-10-01), None
patent: 1 209 807 (2002-05-01), None
patent: 1 217 734 (2002-06-01), None
patent: 1 233 511 (2002-08-01), None
patent: 58-031609 (1983-02-01), None
patent: 60-206033 (1985-10-01), None
patent: 02-185057 (1990-07-01), None
patent: 2001-168674 (2001-06-01), None
patent: 2002-223144 (2002-08-01), None
patent: 2002-237738 (2002-08-01), None
patent: WO 02/43243 (2002-05-01), None
Official Communication issued on Aug. 23, 2005, in the corresponding Japanese Application No. 2002-279428. (With full English translation)..
Official Communication issued on Oct. 21, 2005, in the corresponding European Application No. 03021253.4.
Ketcham et al.; “Performance of TFR Filters Under Elevated Power Conditions”; 42ndAnnual Frequency Control Symposium; 1988; Microelectronics Research Center; Applied Sciences Center; pp. 106-111.
Seabury et al., “Thin Film ZnO Based Bulk Acoustic Mode Filters”; Microwave Symposium Digest; vol. 1; Jun. 1997; pp. 181-184.
Official Communication Issued on Feb. 14, 2006, in the corresponding European Application No. 03021253.4.
Official Commuication issued in the corresponding European Patent Application No. 03021253.4-2215, dated May 8, 2006.

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