Abstract: The invention relates to an ultrasonic measuring device including an ultrasonic array configured to detect ultrasonic signals, and a housing. The housing includes an acoustic window portion and a housing wall. The ultrasonic array is arranged in the housing in acoustic contact with the acoustic window portion. The acoustic window portion is configured to adhere to a surface of the object to be examined. The invention further relates to an examination apparatus, which includes at least one such ultrasonic measuring device, and to a method for ultrasonic signal detection, in particular for ultrasound-based imaging.

Abstract: The invention relates to an ultrasonic measuring device including an ultrasonic array configured to detect ultrasonic signals, and a housing. The housing includes an acoustic window portion and a housing wall. The ultrasonic array is arranged in the housing in acoustic contact with the acoustic window portion. The acoustic window portion is configured to adhere to a surface of the object to be examined. The invention further relates to an examination apparatus, which includes at least one such ultrasonic measuring device, and to a method for ultrasonic signal detection, in particular for ultrasound-based imaging.

Abstract: A device and method for treating the surface of a semiconductor wafer provides a treatment fluid in the form of a dispersion of gas bubbles in a treatment liquid generated at acoustic pressures less than those required to induce cavitation in the treatment liquid. A resonator supplies ultrasonic or megasonic energy to the treatment fluid and is configured to create an interference pattern in the treatment fluid comprising regions of pressure amplitude minima and maxima at an interface of the treatment fluid and the semiconductor wafer.

Abstract: A device and method for treating the surface of a semiconductor wafer provides a treatment fluid in the form of a dispersion of gas bubbles in a treatment liquid generated at acoustic pressures less than those required to induce cavitation in the treatment liquid. A resonator supplies ultrasonic or megasonic energy to the treatment fluid and is configured to create an interference pattern in the treatment fluid comprising regions of pressure amplitude minima and maxima at an interface of the treatment fluid and the semiconductor wafer.

Abstract: Substrates (100) are described for receiving a plurality of samples, especially for the preservation of biological samples at cryotemperatures comprising a plurality of substrate plates (11, 12, 13) arranged on top of one another as a stack (10) and comprising an anchoring axis (20) to which the substrate plates (11, 12, 13) are connected. Processes for the preservation of biological samples at cryotemperatures are also described.

Abstract: The present invention relates to an ultrasound actuator for cleaning objects, having a propagation volume (3,4,13) for ultrasound, on which one or more ultrasonic transducers (5) are arranged. The propagation volume (3,4,13) is delimited by an acoustic coupling-out window (8) with a coupling face for acoustically coupling an object (1,12) to be cleaned and by one or more reflection faces (6,7) for coupled-in ultrasound. The ultrasonic transducers (5) are arranged on the propagation volume (3,4,13) such that the coupled-in ultrasound exits the propagation volume (3,4,13) via the coupling-out window (8) only after one or more reflections at the reflection faces (6,7). The reflection faces are designed such that a predeterminable distribution of the ultrasound energy without intensity peaks results at the coupling-out window (8). The present ultrasound actuator is used to achieve gentle cleaning of the objects with economic use of cleaning liquid.

Abstract: Substrates (100) are described for receiving a plurality of samples, especially for the preservation of biological samples at cryotemperatures comprising a plurality of substrate plates (11, 12, 13) arranged on top of one another as a stack (10) and comprising an anchoring axis (20) to which the substrate plates (11, 12, 13) are connected. Processes for the preservation of biological samples at cryotemperatures are also described.