Abstract: A vibration sensor based on piezoelectric thin films, or smart cuts of piezoelectric materials, integrated into a functional, metallic housing that transmits vibration deformations applied to the housing correctly into the sensor in a frequency range that is typically—but not limited to—1 Hz to 20 kHz. The sensor comprises a low-stiffness layer, for instance a PCB layer, providing a controllable contact force between sensor structure machine parts, and transforming the relative movements into a mechanical stress acting onto the piezoelectric layer.

Abstract: A sensor device (1) comprises a piezoelectric transducer (3) and a base member (2). The piezoelectric transducer includes a piezoelectric member with at least one excitation electrode (37, 38) connected to a first face thereof and having a thickness (h) between the first face and a second face. The piezoelectric transducer (3) is attached to a supporting face of the base member (2) with the second face of the piezoelectric transducer positioned adjacent the supporting face of the base member. The base member includes at least one acoustic wave reflecting tag (21) distant from the piezoelectric member.

Abstract: A fuel cell system component includes a glass ceramic composite.

Abstract: Disclosed is a sensor device (1) comprising a piezoelectric transducer (3) and a base member (2). The piezoelectric transducer comprises a piezoelectric member with at least one excitation electrode (37, 38) connected to a first face thereof and having a thickness (h) between the first face and a second face. The piezoelectric transducer (3) is attached to a supporting face of the base member (2) with the second face of the piezoelectric transducer adjacent the supporting face of the base member. The base member comprises at least one acoustic wave reflecting tag (21) distant from the piezo-electric member.

Abstract: A method of manufacturing bistable strips having different curvatures, each strip including a plurality of portion of layers of materials, wherein at least one specific layer portion is deposited by a plasma spraying method in conditions different for each of the strips.

Abstract: The invention relates to a sound transducer for producing sound vibrations, which can be inserted in an ear and can be used in particular for an implantable hearing aid. The sound transducer has at least one carrier layer and at least one piezoelectric layer, as a result of which a deflection via a bimorph principle is achieved, or a deflection can be detected by picking up a voltage.

Abstract: A MEMS component includes a lower electrode. The MEMS component also includes an upper electrode. The upper electrode overlies the lower electrode. The MEMS component also includes a first piezoelectric layer between the lower electrode and the upper electrode. The first piezoelectric layer has a first piezoelectric material comprising AlN and Sc.

Abstract: A BAW component is provided. A method for manufacturing a BAW component is also provided. The component includes a bottom electrode, a top electrode and a first piezoelectric material. The first piezoelectric material is between the bottom electrode and the top electrode. The first piezoelectric material has a higher piezoelectric coefficient than AlN.

Abstract: The present invention comprises a system and a method thereof for identifying a specific Interdigitated Electrode pattern arrangement for piezoelectric actuators located around an aperture of a flexible lens body, wherein the Interdigitated Electrode configuration is configurable, when activated, to provide a specific definable bending force distribution, thereby providing a specific definable shaping of the flexible lens body, thereby providing specific definable optical characteristics of the flexible lens body.

Abstract: The invention relates to a sound transducer for producing sound vibrations, which can be inserted in an ear and can be used in particular for an implantable hearing aid. The sound transducer has at least one carrier layer and at least one piezoelectric layer, as a result of which a deflection via a bimorph principle is achieved, or a deflection can be detected by picking up a voltage.

Abstract: The invention relates to a sound transducer for producing sound vibrations, which can be inserted in an ear and can be used in particular for an implantable hearing aid. The sound transducer has at least one carrier layer and at least one piezoelectric layer, as a result of which a deflection via a bimorph principle is achieved, or a deflection can be detected by picking up a voltage.

Abstract: A BAW component is provided. A method for manufacturing a BAW component is also provided. The component includes a bottom electrode, a top electrode and a first piezoelectric material. The first piezoelectric material is between the bottom electrode and the top electrode. The first piezoelectric material has a higher piezoelectric coefficient than AlN.

Abstract: A MEMS component includes a lower electrode. The MEMS component also includes an upper electrode. The upper electrode overlies the lower electrode. The MEMS component also includes a first piezoelectric layer between the lower electrode and the upper electrode. The first piezoelectric layer has a first piezoelectric material comprising AlN and Sc.

Abstract: The present invention comprises a system and a method thereof for identifying a specific Interdigitated Electrode pattern arrangement for piezoelectric actuators located around an aperture of a flexible lens body, wherein the Interdigitated Electrode configuration is configurable, when activated, to provide a specific definable bending force distribution, thereby providing a specific definable shaping of the flexible lens body, thereby providing specific definable optical characteristics of the flexible lens body.

Abstract: A method of manufacturing bistable strips having different curvatures, each strip including a plurality of portion of layers of materials, wherein at least one specific layer portion is deposited by a plasma spraying method in conditions different for each of the strips.

Abstract: An acoustic wave resonator device comprising a resonant layer that comprises a series of side-by-side areas of first and second dielectric materials. In one embodiment the first dielectric material is a piezoelectric, in particular the first dielectric material can be a piezoelectric and the second dielectric material can be non-piezoelectric. In another embodiment, the first dielectric material is a piezoelectric of first polarity and the second dielectric material is a piezoelectric of opposite polarity or different polarity. Where needed, the resonant layer is supported on a reflector composed of series of layers of high acoustic impedance material(s) alternating with layers of low acoustic impedance material(s). For example, the reflector comprises AlN, Al2O3, Ta2O5, HfO2 or W as high impedance material and SiO2 as low impedance material.

Abstract: The invention relates to a sound transducer for producing sound vibrations, which can be inserted in an ear and can be used in particular for an implantable hearing aid. The sound transducer has at least one carrier layer and at least one piezoelectric layer, as a result of which a deflection via a bimorph principle is achieved, or a deflection can be detected by picking up a voltage.

Abstract: An acoustic wave resonator device comprising a resonant layer that comprises a series of side-by-side areas of first and second dielectric materials. In one embodiment the first dielectric material is a piezoelectric, in particular the first dielectric material can be a piezoelectric and the second dielectric material can be non-piezoelectric. In another embodiment, the first dielectric material is a piezoelectric of first polarity and the second dielectric material is a piezoelectric of opposite polarity or different polarity. Where needed, the resonant layer is supported on a reflector composed of series of layers of high acoustic impedance material(s) alternating with layers of low acoustic impedance material(s). For example, the reflector comprises AlN, Al2O3, Ta2O5, HfO2 or W as high impedance material and SiO2 as low impedance material.

Abstract: A solid oxide fuel cell structure obtainable by selective electro-chemical processing, comprising an electrolyte membrane (4) formed by a thin film more than 50 nm but less than 10 ?m thick, covering a supporting structure (1) made of a bulk substrate, the supporting structure having at least one 100 ?m to 100 mm wide opening that is covered by the electrolyte membrane (4). A metallic grid (9) is applied over the electrolyte membrane (4) and serves at the same time as structural element to support the membrane and as current collector. The metallic grid (9) has gridlines that are higher than the membrane thickness and whose height to width ratio is larger than 0.5, and a mesh size about 10 to 1000 times smaller than the width of said opening. The metallic grid (9) can be applied on top of a patterned metallic sub-layer structure (7,7a) arranged for supplying a fine distribution of current and increasing the density of electrolyte-electrode boundaries exposed to the fluid.

Abstract: A microelectrical device has a ferroelectric layer (10) between parallel electrodes (20,21) at least one of which (21) is movable. The electrodes have a closed position in which the ferroelectric layer (10) is sandwiched between the two electrodes (21,21) and an open position in which the movable electrode (21) is spaced from the ferroelectric layer (10). A spring effect biases the movable electrode (21) towards the open position. When the movable electrode (21) is closed by a first voltage pulse (P1) the ferroelectric layer (10) is polarized to hold the movable electrode (21) closed. When zero voltage is applied the movable electrode (21) is held closed by remnant polarization of the ferroelectric material until the application of a second voltage pulse (P2) which cancels the remnant polarization of the ferroelectric material (10) to allow the movable electrode(s) to be moved to the open position by the spring effect.