Sensor element and method for manufacturing a sensor element

A sensor element for measuring a temperature, the sensor element comprising:

• at least one carrier with a top side and a bottom side, wherein an insulating layer is formed on the top side of the carrier;
• at least two electrodes formed on the carrier at a distance from one another;
• at least one functional layer comprising a material with a temperature-dependent electrical resistance, the at least one functional layer being arranged at least partially between the electrodes;
• at least two intermediate layers comprising an insulating material;
• and
• at least two contact pads for electrical contacting of the sensor element;
• wherein the sensor element is adapted to be integrated directly into an electrical system as a discrete component,
• wherein the sensor element has a small deviation range from a nominal resistance, and
• wherein at least one of the at least two electrodes is structured for setting the resistance value.

A method for manufacturing a sensor element for measuring a temperature, the method comprising:

• providing a carrier material to form a carrier;
• forming an insulating layer on a top side of the carrier;
• applying at least one electrode to a partial area of the insulating layer so that an area of the insulating layer remains free of the at least one electrode;
• applying at least one intermediate layer to the area of the insulating layer that is free of the at least one electrode material;
• applying at least one functional layer to at least a partial area of a plane formed by the at least one electrode and the at least one intermediate layer;
• applying at least one further electrode to a partial area of the at least one functional layer;
• applying at least one further intermediate layer to a partial area of the functional layer that is free of the at least one further electrode;
• structuring of at least one of the electrodes to form at least one trimmable area for adjustment of a resistance value of the sensor element;
• and
• forming contact pads for electrical contacting of the sensor element.