Avl List Gmbh

Vectron International Gmbh

Ctr Carinthian Tech Research Ag

Gudrun Bruckner

Leonhard Michael Reindl

Alexander Friedl

Bert Wall

Robert Hauser

Robert Strmsek

Jochen Bardong

Rene Fachberger

Electrically conductive thin film metallizations having continuous operating temperatures of 300&#xb0; C. and more are of considerable practical interest for a number of technical applications, such as surface wave elements. Technical reasons and high production costs are a bar to the use of standard films. In order to remedy this, films including a mixture of a high-melting conductive metal and aluminum oxides, wherein in particular aluminum-rich non-stoichiometric aluminum oxides are used. The aluminum oxides act as components thermally stabilizing the conductive metal film; an optional proportion of chemically available aluminum can additionally alloy with the conductive metal and thereby enables essential film properties, such as the electrical conductivity to be specifically influenced. It is thus possible, using standard materials and methods of thin film deposition, in a cost-effective manner to produce highly electrically conductive, thermally resistant films having good structurability and comparatively low density for a wide range of different applications.

High temperature-resistant, electrically conductive thin films

A measuring sensor comprises at least one SAW (surface acoustic wave) element () serving as a sensor and identification unit, which is installed in a contactless manner inside a housing part () forming, in essence, a coaxial conductor. The housing part () is connected to the shield () of the connection cable whose signal conductor () extends in a contactless manner over a superficial coupling structure of the SAW element () without contact. In order to improve the near-field coupling, the coupling structure of the SAW element () comprises additively coupling partial structures, which are arranged on both sides of the signal conductor () and which, preferably with at least one strip conductor, encircle, at least for the most part, the SAW element () in the peripheral area, and which serve as an integrated discharge loop for pyroelectric charges.

Measuring sensor with at least one SAW (surface acoustic wave) element

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Wernberg, Austria

Gudrun Bruckner