Abstract: A sensor element and a method of producing a sensor element is described. The sensor element being especially for identifying a physical property of a gas, especially for identifying the concentration of a gas component or the temperature of an exhaust gas of an internal combustion engine. The sensor element has a first solid electrolyte layer, the first solid electrolyte layer having a plated- through hole. The sensor element also has a conducting element which produces an electrically conducting connection from the upper side of the first solid electrolyte layer to the lower side of the first solid electrolyte layer through the plated-through hole. The first solid electrolyte layer in the plated-through hole is electrically insulated from the conducting element by an insulating element. The wall of the plated-through hole has a bevel.

Abstract: A gas-sensor element having a layer-type arrangement or configuration, in particular for determining gas components and/or concentrations of gas components of a measuring gas, having a sensor cell, including a first electrode, which is to be exposed to the measuring gas, a second electrode, which is to be exposed to a reference gas, and a solid-state electrolyte situated between the two electrodes, including a reference-air channel situated between the electrode that is exposed to the reference gas and the solid-state electrolyte, and including a heating element. In the superposition of two gas-sensor element layers, a path formed by an electrode facing the heating element is developed at a lateral offset with respect to a path formed by the heating element.

Abstract: A sensor element for gas sensors is described for determining gas components of a gas mixture, especially in exhaust gases of internal combustion engines, having at least one electrochemical measuring cell and at least one porous layer that is exposed to the gas mixture. The porous layer contains palladium, platinum, ruthenium, an alkali metal and/or an alkaline earth metal, the platinum being contained in the porous layer at a minimum concentration of 1.5 wt. %. Furthermore, a method and an impregnating solution are described for producing the sensor element.