ACOUSTIC WAVE DEVICE, FILTER, MULTIPLEXER, AND METHOD OF MANUFACTURING ACOUSTIC WAVE DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
N/A
Issued Date -
Mar 13, 2025
app pub date -
Sep 4, 2024
filing date -
Sep 4, 2024
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An acoustic wave device includes a piezoelectric layer provided with a part of the piezoelectric layer between lower and upper electrodes and having a through hole along a resonance region, an insertion film provided between the lower electrode and the piezoelectric layer and having a resistivity higher than those of the lower electrode and the upper electrode, a first film provided on a side of the upper electrode, a second film provided between the side surface of the upper electrode and the first film, and a third film provided between the side surface of the upper electrode and the second film or between the first film and the second film, a concentration of a first element of the third film being higher than that of the second film and a concentration of a second element of the third film being lower than that of the second film.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully