EP 4072742 A1 20221019 - METHOD FOR PRODUCING A MEMBRANE FOR AN ULTRASONIC SENSOR, AND MEMBRANE FOR AN ULTRASONIC TRANSDUCER
Title (en)
METHOD FOR PRODUCING A MEMBRANE FOR AN ULTRASONIC SENSOR, AND MEMBRANE FOR AN ULTRASONIC TRANSDUCER
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER MEMBRAN FÜR EINEN ULTRASCHALLSENSOR UND MEMBRAN FÜR EINEN ULTRASCHALLWANDLER
Title (fr)
PROCÉDÉ DE PRODUCTION D'UNE MEMBRANE POUR UN CAPTEUR À ULTRASONS, ET MEMBRANE POUR TRANSDUCTEUR À ULTRASONS
Publication
Application
Priority
- DE 102019219391 A 20191211
- EP 2020082457 W 20201118
Abstract (en)
[origin: WO2021115740A1] The invention relates to a method for producing a membrane (101a) for an ultrasonic sensor. First, a membrane body (100) consisting of a metal material is provided. Then, an outer surface region (106) of the membrane body (100) is degreased. Subsequently, the outer surface region (106) of the membrane body (100) is pickled. In order to pre-activate a subsequently applied second passivation layer (110), a first passivation layer (105) is also deposited, as a first layer, on the outer surface region (106).
IPC 8 full level
B05D 7/00 (2006.01); C23C 22/34 (2006.01); C23C 22/36 (2006.01); C23C 22/80 (2006.01); C23G 1/12 (2006.01); G01S 15/931 (2020.01); G10K 9/00 (2006.01)
CPC (source: EP KR US)
B05D 1/02 (2013.01 - KR); B05D 1/18 (2013.01 - KR); B05D 3/102 (2013.01 - EP KR); B05D 7/14 (2013.01 - EP KR); B05D 7/57 (2013.01 - EP KR); C23C 22/34 (2013.01 - EP KR US); C23C 22/73 (2013.01 - EP US); C23C 22/78 (2013.01 - KR US); C23C 22/82 (2013.01 - KR); C23G 1/00 (2013.01 - EP); C23G 1/02 (2013.01 - US); C23G 1/125 (2013.01 - EP KR); G10K 9/00 (2013.01 - EP); G10K 9/20 (2013.01 - KR US); B05D 1/02 (2013.01 - EP); B05D 1/18 (2013.01 - EP); B05D 2202/25 (2013.01 - EP KR); B05D 2503/00 (2013.01 - EP KR); B05D 2504/00 (2013.01 - EP KR); C23C 2222/20 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019219391 A1 20210617; CN 114786826 A 20220722; CN 114786826 B 20240514; EP 4072742 A1 20221019; JP 2023505997 A 20230214; JP 7418582 B2 20240119; KR 20220110819 A 20220809; US 2023018337 A1 20230119; WO 2021115740 A1 20210617
DOCDB simple family (application)
DE 102019219391 A 20191211; CN 202080086036 A 20201118; EP 2020082457 W 20201118; EP 20810896 A 20201118; JP 2022535456 A 20201118; KR 20227023157 A 20201118; US 202017781748 A 20201118