Siemens Aktiengesellschaft

Osram Ag

Pyreos Ltd.

Siemens Aktiengesellschaft Ag

Thorsten Steinkopff

Carsten Schuh

Andreas Wolff

Karl Lubitz

Franz Dirauf

Wolfram Wersing

Klaus Stockwald

Steffen Walter

Carsten Giebeler

Matthias Schreiter

Andreas Kloss

Ute Liepold

Dieter Cramer

Clemens Scherer

Kerstin Farmbauer

Iris Hahn

A method for producing a micro system, said method comprising: providing a substrate () made of aluminum oxide; producing a thin film () on the substrate () by depositing lead zirconate titanate onto the substrate () with a thermal deposition method such that the lead zirconate titanate in the thin film () is self-polarized and is present predominantly in the rhombohedral phase; and cooling down the substrate () together with the thin film ().

Method for producing a microsystem having a thin film made of lead zirconate titanate

A device and a method to determine a position of a component that is moveable in a linear manner along an assigned axis are provided. A reference element that extends in a direction of the assigned axis is assigned to the component. The component may be brought into mechanical contact with the reference element. A respective piezo transducer is arranged on the reference element to generate and receive vibrations in a material used for the reference element.

Device and method to determine the position of a component that is moveable in a linear manner along an assigned axis

High pressure discharge lamp () with improved ignitability. A spiral pulse generator () that is directly mounted inside the outer piston () of the lamp is used for igniting the high pressure discharge lamp.

High-pressure discharge lamp with improved ignitability and high-voltage pulse generator

Piezoelectrical bending converter with at least one monolithic layered composite, includes a piezoelectric-active ceramic layer with a lateral dimension change which may be generated by application of an electrical field and at least one further piezoelectric-active ceramic layer with a further lateral dimension change, different from the lateral dimension change. An electrode layer is arranged between the ceramic layers, for generation of the electric fields. The layered composite preferably comprises several piezoelectric-active layers and electrode layers arranged between the above. The shift is thus obtained as a gradient of the dimension changes in the direction of the stack of the layered composite. The dimension changes for the ceramic layers and the gradient may be adjusted by the generation of the electrical fields. In order to achieve a shift it is necessary not to have a piezoelectric-inactive layer.

Piezoelectrical bending converter

An additional contacting () for a piezoelectric component () is formed as a multilayer structure, wherein the piezoelectric component () is formed by a stack () of alternatingly arranged piezoelectric ceramic layers () and electrode layers (). The additional contacting () has a series of connecting elements () for connecting a metallization () of the electric component () to an electrical connecting element (). In order to minimize mechanical loads during dynamic operation of the piezoelectric component (), the additional contacting () is configured as an individual, structured component (), especially in the form of a structured foil. Said structured foil () advantageously has a current conduction path () which is common to the connecting elements () and a contacting zone formed in the area of static base plate (), wherein the additional contacting () is connected to the electrical connecting element in the area of said contacting zone.

Additional contacting for an electrical component and piezoelectric component in the form of a multilayer structure

A piezo actuator with an actuator body has at least one electrically conductive multi-layer film with a rigid electrical terminal element. The multi-layer film controls expansion and attraction of the actuator body. An electrical conduction layer of the multi-layer film has at least one recess to increase flexibility. The recesses in the conduction layer are, for example, photolitho-graphically produced.

Piezo actuator with multi-layer conductive film, and method for making same

A product comprised of a non-linear piezoelectric materia, in which a plurality of reference points are defined. The product is exposed to a distribution of an electrical field and is characterized by a distribution of characteristic linear moduli over the reference points, whereby each modulus is determined as an increase in a secant reaching, in an associated characteristic curve, from a zero point up to a point corresponding to the reference point. The characteristic curve is projected from a system of characteristic curves that describes relations between the electrical field and loadings characteristic of additional state quantities in the material. In addition, the invention relates to a method for determining a corresponding distribution of characteristic moduli in a corresponding product.

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Egmating, Germany

Thorsten Steinkopff