Rectangular piezoelectric resonator with a slot in one surface

Details Rectangular piezoelectric resonator with a slot in one surface Rectangular piezoelectric resonator with a slot in one surface

1983-07-08

1984-06-19

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310365, H01L 4108

Patent

active

044555032

ABSTRACT:
This disclosure is directed to an improved strip type or rectangular type piezoelectric resonator utilizing length mode vibration, which includes a piezoelectric ceramic substrate, and first and second main electrode faces formed on opposite surfaces of the piezoelectric ceramic substrate, and which is characterized in that there is further provided a groove which is formed in one of said first and second main electrode faces so as to extend over an entire length of the piezoelectric ceramic substrate in a direction parallel to the longitudinal direction thereof. The groove is set to have a depth in the range of 30 to 70% of the thickness of the piezoelectric substrate.

REFERENCES:
patent: 2018246 (1935-10-01), Beard
patent: 3421109 (1969-01-01), Wiggins et al.
patent: 3543500 (1951-02-01), Kettering et al.

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