Innovative Sensor Technology Ist Ag

Josef Vik

Mirko Lehmann

Jiri Holoubek

A planar heating element comprising a PTC resistive structure, which is arranged in a defined surface region of a first surface of a support substrate. The electrical connection contacts for connection to an electrical voltage source are associated with the PTC resistive structure, wherein the PTC resistive structure&#x2014;starting from the two electrical connection contacts&#x2014;has at least one internal conductive trace and a parallel connected, external conductive trace. The internal conductive trace has a greater resistance than the external conductive trace and the resistances of the internal conductive trace and external conductive trace are so sized that upon applying a voltage an essentially uniform temperature distribution is present within the defined surface region.

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Chanovice, Czechia

Josef Vik