Tuning fork type piezoelectric resonator having steps formed in

Details Tuning fork type piezoelectric resonator having steps formed in Tuning fork type piezoelectric resonator having steps formed in

1992-06-09

1995-07-18

Shoop, Jr., William M.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

333200, 310370, 331156, H03H 921

Patent

active

054345472

ABSTRACT:
A tuning fork type piezoelectric resonator constructed by forming tuning fork arm portions on both sides of a first slit provided for a piezoelectric substrate, forming resonance electrodes on both major surfaces of the piezoelectric substrate in a region around the first slit, and forming steps in outer edges of the tuning fork arm portions.

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patent: 4540909 (1985-09-01), Takahashi et al.
patent: 4654663 (1987-03-01), Alsenz et al.
patent: 5159301 (1992-10-01), Kaisa et al.
patent: 5192925 (1993-03-01), Kaida

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