Sensor element and method for producing a sensor element

A method for producing a sensor element, the method comprising:

• providing a ceramic carrier material;
• printing a first surface of the carrier material with an NTC paste in a first printing geometry forming a first NTC layer;
• sintering a system comprising the carrier material and the first NTC layer;
• printing a second surface of the carrier material with an NTC paste in a second printing geometry forming a second NTC layer;
• sintering a system comprising the carrier material and the second NTC layer,
• wherein the surfaces of the carrier material are printed with the NTC pastes partially or over a whole area;
• and
• applying at least two electrodes to each NTC layer,
• wherein the electrodes belonging to a respective NTC layer are separated from each other by a free region between the electrodes, the free region running parallel to a top side and an underside of the carrier material.

A sensor element for temperature measurement comprising:

• a ceramic carrier comprising a top side and an underside;
• a respective NTC layer arranged on the top side and on the underside of the carrier, wherein a resistance of the respective NTC layer depends on a thickness and/or geometry of the respective NTC layer;
• and
• at least one electrode adjacent the respective NTC layer,
• wherein a first electrode is located on the top side of the carrier,
• wherein a first NTC layer is arranged on a partial region of the first electrode,
• wherein a second electrode is arranged on the first NTC layer,
• wherein a second NTC layer is arranged on the underside of the carrier,
• wherein two electrodes are arranged at the second NTC layer, and
• wherein the two electrodes are separated from one another by a free region, the free region running parallel to a top side and an underside of the carrier.