Elastic surface wave element

Details Elastic surface wave element Elastic surface wave element

1986-10-31

1988-03-29

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310348, 310344, 310313D, H01L 4108

Patent

active

047346086

ABSTRACT:
An elastic surface wave element which prevents mixture of foreign substances to improve the reliability thereof and allows a peripheral circuit for driving the element to be integrated with the element to facilitate designing and assembly of the element. The elastic surface wave element comprises an element body and a multi-layered printed circuit board disposed one on the other with a predetermined gap left therebetween and having terminal sections connected to each other. The element further comprises a sound wave absorbing member which seals outer peripheries along which the element body and the multi-layered printed circuit board are joined together and thus seals airtight a face of the element on which electrodes are formed.

REFERENCES:
patent: 3885173 (1975-05-01), Lee
patent: 4047129 (1977-09-01), Ishiyama
patent: 4451754 (1984-05-01), Stolz et al.

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