Acoustic wave device and filter

Details Acoustic wave device and filter Acoustic wave device and filter

2007-09-19

2010-02-09

SanMartin, Jaydi (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S31300R, C333S189000, C333S195000

Reexamination Certificate

active

07659653

ABSTRACT:
An acoustic wave device includes a piezoelectric substrate, a first dielectric film formed on the piezoelectric substrate, and electrodes that are provided on the first dielectric film and excite an acoustic wave, the electrodes including electrode fingers. At least a part of the first dielectric film is cut out between adjacent electrode fingers among the electrode fingers.

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