Title:
PIEZOELECTRIC FILTER AND PRODUCING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP3538710
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a piezoelectric filter, with which an unwanted sprious can be effectively suppressed and the reliability of an external electrode is hardly damaged even when the height is reduced.
SOLUTION: An energy sealed piezoelectric filter 1 has a structure wherein first and second piezoelectric substrates 2 and 3 are adhered/laminated through an adhesive sheet 9. The elastic modulus of the adhesive sheet 9 is within the range of 0.5 MPa to 3000 MPa, at least one of recessed parts 9b-9d and 9e-9g is formed at the outer peripheral edge of the adhesive sheet 9, and external electrode materials enter the recessed part.
More Like This:
| JP5076166 | Piezoelectric device and its sealing method |
| JPH08228124 | CRYSTAL OSCILLATOR |
| JP3454589 | PIEZOELECTRIC DEVICE AND ITS PRODUCTION |
Inventors:
Oshima, Shigeo
Application Number:
JP2000193296A
Publication Date:
June 14, 2004
Filing Date:
June 27, 2000
Export Citation:
Assignee:
MURATA MFG CO LTD
International Classes:
H03H3/02; H03H9/02; H03H9/05; H03H9/10; H03H9/205; H03H9/58; (IPC1-7): H03H9/58; H03H3/02; H03H9/205