US 12,460,982 B2
Method for manufacturing a pressure sensor having a pressure-sensitive medium, and pressure sensor
Dorothee Nonnenmacher, Leinfelden-Echterdingen (DE); Elmar Kroner, Tamm (DE); Friedhelm Guenter, Burgstetten (DE); Joachim Friedl, Reutlingen (DE); Joachim Kreutzer, Stuttgart (DE); Klaus-Volker Schuett, Wernau (DE); Lars Sodan, Balingen (DE); Michael Raedler, Hamburg (DE); Patrick Stihler, Schlaitdorf (DE); Raschid Baraki, Reutlingen (DE); Steven Maul, Stuttgart (DE); and Yang Zou, Renningen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 18/249,035
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Nov. 24, 2021, PCT No. PCT/EP2021/082757
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/112288, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 10 2020 214 765.5 (DE), filed on Nov. 25, 2020.
Prior Publication US 2023/0393009 A1, Dec. 7, 2023
Int. Cl. G01L 19/06 (2006.01); G01L 9/00 (2006.01)
CPC G01L 19/0645 (2013.01) [G01L 9/0041 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for manufacturing a pressure sensor having a pressure-sensitive medium, comprising the following steps:
providing a pressure sensor having a pressure sensor element, which is arranged in a receiving space of a housing of the pressure sensor;
dissolving a first reactant in a pressure-sensitive medium or in a second medium and a second reactant in the pressure-sensitive medium or in the second medium;
filling the receiving space with the pressure-sensitive medium;
applying the second medium, which is immiscible with the pressure-sensitive medium, to a surface of the pressure-sensitive medium; and
forming a membrane in a boundary region between the pressure-sensitive medium and the second medium by way of a phase-transfer reaction between the first reactant and the second reactant.