Piezoelectric resonator with grid-like electrodes

Details Piezoelectric resonator with grid-like electrodes Piezoelectric resonator with grid-like electrodes

Filed on

1994-09-29

Date issued

1996-05-21

Examiner

Budd, Mark O.

Patent Class

Electrical generator or motor structure

SubClass

Non-dynamoelectric

SubSubClass

Piezoelectric elements and devices

Other Related Categories

310366, H01L 4108

Type

Patent

Status

active

Patent number

055192793

Description

ABSTRACT:
A piezoelectric resonator (100) with an attenuated spurious response. The resonator (100) includes a piezoelectric crystal plate (102) having opposite surfaces (104, 106), electrodeS (108, 114) positioned in overlying relationship on each of the opposite surfaces (104, 106), the electrodes (108, 114) being substantially coextensive and opposite, and providing a primary frequency mode of operation and spurious modes upon suitable energization, and the electrodes (108, 114) having a grid-like structure (124) to provide a substantially uniform distribution of electrical charges over an electroded region (126).

REFERENCES:
patent: 3059130 (1962-10-01), Robins
patent: 3222622 (1965-12-01), Curran et al.
patent: 3384768 (1968-05-01), Shockley et al.
patent: 3401276 (1968-09-01), Curran et al.
patent: 3854060 (1974-12-01), Cook
patent: 5410210 (1995-04-01), Sato et al.

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