Elastic wave device with a dielectric layer on the...

Details Elastic wave device with a dielectric layer on the... Elastic wave device with a dielectric layer on the...

2009-03-20

2011-12-27

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S133000, C333S195000, C310S31300R

Reexamination Certificate

active

08085116

ABSTRACT:
An elastic wave device is described which includes a piezoelectric substrate, comb-shaped electrodes having teeth electrodes that are disposed so as to face each other on the piezoelectric substrate, a non-overlapping area in which the teeth electrodes of the comb-shaped electrodes do not overlap each other, and a overlapping area in which the teeth electrodes overlap each other and the velocity of sound is higher than that in the non-overlapping area.

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