Title:
TRANSDUCER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/265050
Kind Code:
A1
Abstract:
This transducer comprises: a film support part; a vibration film which is connected to the film support part and is displaceable in the film thickness direction; a base material having a counter surface facing the vibration film; and a first piezoelectric element that has a pair of electrodes and a piezoelectric film held between the electrodes and that is on the vibration film. The transducer holds pressure in a space between the base material and the vibration film so as to keep the displacement of the vibration film within a fixed range.
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Inventors:
NAIKI TAKASHI (JP)
SHIMOJI NORIYUKI (JP)
DATE TOMOHIRO (JP)
GOUDA KENJI (JP)
AMAMOTO YURINA (JP)
SHIMOJI NORIYUKI (JP)
DATE TOMOHIRO (JP)
GOUDA KENJI (JP)
AMAMOTO YURINA (JP)
Application Number:
PCT/JP2022/024013
Publication Date:
December 22, 2022
Filing Date:
June 15, 2022
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H04R17/00; H01L41/09; H01L41/113; H04R1/28
Domestic Patent References:
| WO2020230358A1 | 2020-11-19 |
Foreign References:
| JP2021044762A | 2021-03-18 | |||
| JP2005012644A | 2005-01-13 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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