Abstract: The invention relates to a printed circuit board structure with at least one dielectric insulating layer and at least one conductive layer, in which within the at least one insulating layer, a layer made of a dielectric thermally conductive material is provided that is located at least in the vicinity of, or in contact with, an inner conductor arrangement. Another thermally conductive layer, preferably an electrically conductive metal layer, can be provided in the immediate vicinity of, or in contact with, the layer made of a dielectric thermally conductive material. It is also possible for an at least thermally conductive, preferably electrically conductive feedthrough to pass from a conductor section lying on the outside of the printed circuit board into the inside of the printed circuit board, at least into the vicinity of the layer made of a dielectric thermally conductive material.