Grooved piezoelectric resonating element and a mounting therefor

Details Grooved piezoelectric resonating element and a mounting therefor Grooved piezoelectric resonating element and a mounting therefor

1982-12-03

1984-02-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, 310368, 310355, H01L 4108

Patent

active

044319380

ABSTRACT:
A piezoelectric resonating element includes a piezoelectric plate (2) having an elongated rectangular shape with first and second major flat surfaces. The piezoelectric plate (2) is formed with an elongated groove (3) on the first major flat surface extending in an lengthwise direction of the piezoelectric plate (2) to separate the first major flat surface into first and second lands. A first electrode (6) is deposited on the first land, and a second electrode (7) is deposited on the second land. A third electrode (12) is deposited entirely on the second major flat surface. A dicing saw is used to form the groove and cut out the element from a mother piece. A piezoelectric resonating device employs the piezoelectric resonating element and it includes a base (14) for supporting the piezoelectric resonating element (1), first, second and third terminals connected to the element (1) for the external connection, a casing (18) for receiving the base (14), piezoelectric resonating element (1) and first, second and third terminals, and a sealant (35) applied at at an opening (32) of the casing (18).

REFERENCES:
patent: 2543500 (1951-02-01), Kettering et al.
patent: 4336510 (1982-06-01), Miyamori
patent: 4370583 (1983-01-01), Ljung

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