Siemens Aktiengesellschaft

Martin Honsberg

Volker Plickert

Meinrad Schienle

Bruno Acklin

Gustav Mueller

Engelbert Hartl

Robert Baumgartner

Gerhard Mitic

Jorg-R Kropp

Gustav Muller

Jan Bellermann

To facilitate a reliable detection of age-related damage or delamination on components the following is proposed: [i] within the scope of radiofrequency reflectometry, scanning a component by radiofrequency signal irradiation in the micrometer or millimeter wavelength range and by measuring at least one reflection signal, which was reflected at the component, in punctiform, one-dimensional or two-dimensional fashion for the purposes of generating at least one first radiofrequency image representation; [ii] scanning the component in direct time offset fashion with respect to the radiofrequency signal irradiation by a combination of ultrasonic signal irradiation and the radiofrequency signal irradiation in the micrometer or millimeter wavelength range and by measuring at least one further reflection signal, which was reflected at the component; and [iii] comparing the radiofrequency image representations generated based on the reflection signals, wherein determined changes in the radiofrequency image representations indicate damage or delamination on the component.

Method and apparatus for detecting aging-dictated damage or delamination on components, in particular power modules of power electronic devices, and power electronic device, in particular converter

Coupling arrangement for optically coupling together an OEIC module and

An electro-optical module includes a substrate having a given surface with first and second lines. An electro-optical unit has a plurality of electro-optical elements being fixed in the first line on the given surface. A corresponding plurality of recesses is formed in the second line on the given surface. Lenses are fixed in the recesses opposite the electro-optical elements, for coupling the electro-optical elements with further optical elements. At least two alignment fixtures are formed on the given surface and are offset from the second line toward the electro-optical unit. Bodies are each disposed in a respective one of the alignment fixtures and act as a mechanical stop for the electro-optical unit.

Electro-optical module with simplified adjustment of the electro-optical

A laser diode is provided having a strip-shaped web based on the principle of a metal clad ridge waveguide laser diode with a strip-shaped web width of less than 10 .mu.m. At least one lateral web extends laterally of the strip-shaped web and serves as a carrier for an electrical connection between the metal cladding of the strip-shaped web and a contacting surface for an electrical lead.

Laser diode

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Aicha Vorm Wald, Germany

Martin Honsberg