Title:
超音波センサのためのダイアフラムの製造方法および超音波変換器のためのダイアフラム
Document Type and Number:
Japanese Patent JP7418582
Kind Code:
B2
Abstract:
A method for producing a diaphragm for an ultrasonic sensor. In the method, a diaphragm body made of metal material is first provided. Next, an external surface region of the diaphragm body is degreased. The external surface region of the diaphragm body is then pickled. To pre-activate the subsequently applied second passivation layer, a first passivation layer is also deposited on the external surface region as a first layer.
Inventors:
Neugebauer, Eva-Maria
Liebert, Tobias
Betticher, Stephanie
Junker, Marx
Liebert, Tobias
Betticher, Stephanie
Junker, Marx
Application Number:
JP2022535456A
Publication Date:
January 19, 2024
Filing Date:
November 18, 2020
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
H04R7/00; H04R31/00
Domestic Patent References:
| JP2016505707A | ||||
| JP2019090109A |
Foreign References:
| US20150225856 | ||||
| WO2013065093A1 |
Attorney, Agent or Firm:
Osamu Yamamoto
Junichi Matsuo
Yoko Mutoh
Junichi Matsuo
Yoko Mutoh
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