Tdk Electronics Ag

W.c. Heraeus Gmbh & Co Kg

Bundesanstalt Fur Materialforschung Und - Prufung

Markus Eberstein

Wolfram Wersing

Christian Wohlgemuth

Gabriele Preu

Christina Modes

Ulrich Fritz

Peter Sättler

Sabrina V Kirner

Marion Gemeinert

Jörn Bonse

Oliver Dernovsek

Wolfgang Arno Schiller

In an embodiment a sensor device includes a sensor element, a media supply configured to transport a medium to the sensor element and a surface, wherein the surface is configured to be exposed to the medium during operation of the sensor device, and wherein the surface comprises a surface structure configured to reduce a wettability of the surface by the medium.

Sensor device and method for producing a sensor device

In an embodiment a membrane includes a hydrophobic region having a plurality of hierarchically arranged micrometer-sized and submicrometer-sized units consisting of a membrane material, wherein a single micrometer-sized unit has a diameter of from 1 &#x3bc;m to 5 &#x3bc;m and a single submicrometer-sized unit has a diameter of &#x3c;1 &#x3bc;m, and wherein the membrane is configured to be used in a pressure sensor system.

Membrane with hierarchically arranged micrometer-sized and sub micrometer-sized units, pressure sensor system with improved measurement accuracy and method for producing such a pressure sensor system

The invention relates to a glass ceramic mass containing at least one oxide ceramic containing barium, titanium and at least one rare earth metal Rek; and at least one glass material containing at least one oxide with boron, at least one oxide with silicon and at least one oxide with at least one bivalent metal Me2+. The glass ceramic mass is characterised in that the glass material contains at least one oxide with bismuth, especially bismuth trioxide. The oxide ceramic is especially a microwave ceramic of formula BaRek2Ti4O12, Rek being neodymium or samarium. The composition of the oxide ceramic remains essentially constant during the sintering of the glass ceramic, enabling the material properties of the glass ceramic mass, such as permittivity (20&#x2013;80), quality (800&#x2013;5000) and Tkf (&#xb1;20 ppm/K) to be specifically predetermined. The glass ceramic mass is characterised by a densification temperature of under 910&#xb0; C. and can is therefore suitable for use in LTCC (low temperature cofired ceramics) technology, for integrating a passive electrical component in the volume of a multilayered ceramic body. Silver in particular can be used as an electroconductive material in this case.

Glass ceramic mass and use thereof

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Berlin, Germany

Markus Eberstein