Abstract: In an embodiment a method for operating an optoelectronic semiconductor component includes providing the optoelectronic semiconductor component having an optoelectronic semiconductor chip and a casing comprising a matrix material, wherein the semiconductor chip is embedded into the casing, and wherein optically inactive particles have been introduced as crack nuclei into the matrix material of the casing, and operating the optoelectronic semiconductor component such that cavities form entirely within the casing for at least some of the crack nuclei.

Abstract: A sensor device for sensing CO2 comprises a hybrid sensing material and a transducer. The hybrid sensing material comprises at least amines and nanoparticles, wherein the hybrid sensing material has a property and is configured to change the property dependent on a current CO2 concentration in the surrounding. The transducer is configured to output an electrical sensor signal dependent on the property of the hybrid sensing material.

Abstract: A sensor device for sensing CO2 comprises a hybrid sensing material and a transducer. The hybrid sensing material comprises at least amines and nanoparticles, wherein the hybrid sensing material has a property and is configured to change the property dependent on a current CO2 concentration in the surrounding. The transducer is configured to output an electrical sensor signal dependent on the property of the hybrid sensing material.

Abstract: A motor vehicle rear includes two longitudinal members, a trunk floor supported by the longitudinal members, a rear wall which adjoins the ends of the longitudinal members and which delimits a trunk opening at the bottom and D pillars which laterally delimit the trunk opening. Lower end sections of the D pillars extend at the height of the longitudinal members beyond outer sides of the two longitudinal members facing away from one another and are anchored on the longitudinal members.

Abstract: A circuit board is described which includes a layer composite with at least one dielectric layer which includes a planar extension in parallel with respect to an xy-plane which is spanned by an x-axis and a y-axis perpendicular thereto, and which includes a layer thickness along a z-axis which is perpendicular with respect to the x-axis and to the y-axis; and at least one metallic layer which is attached to the dielectric layer in a planar manner. The layer composite along the z-axis is free from a symmetry plane which is oriented in parallel with respect to the xy-plane, and the dielectric layer includes a dielectric material which has an elastic modulus E in a range between 1 and 20 GPa and along the x-axis and along the y-axis a coefficient of thermal expansion in a range between 0 and 17 ppm/K. A method of manufacturing such a circuit board is also described.

Abstract: A circuit board is described which includes a layer composite with at least one dielectric layer which includes a planar extension in parallel with respect to an xy-plane which is spanned by an x-axis and a y-axis perpendicular thereto, and which includes a layer thickness along a z-axis which is perpendicular with respect to the x-axis and to the y-axis; and at least one metallic layer which is attached to the dielectric layer in a planar manner. The layer composite along the z-axis is free from a symmetry plane which is oriented in parallel with respect to the xy-plane, and the dielectric layer includes a dielectric material which has an elastic modulus E in a range between 1 and 20 GPa and along the x-axis and along the y-axis a coefficient of thermal expansion in a range between 0 and 17 ppm/K. A method of manufacturing such a circuit board is also described.

Abstract: A motor vehicle rear includes two longitudinal members, a trunk floor supported by the longitudinal members, a rear wall which adjoins the ends of the longitudinal members and which delimits a trunk opening at the bottom and D pillars which laterally delimit the trunk opening. Lower end sections of the D pillars extend at the height of the longitudinal members beyond outer sides of the two longitudinal members facing away from one another and are anchored on the longitudinal members.