A composite layered sheet or composite layered film made from thermoplastics or thermoplastic mixtures comprises at least one substrate layer A) and at least one functional layer B) which comprises one or more blowing agents or nucleating agents, where the functional layer B) is thinner than the substrate layer A). In order to initiate the precharge operation, a pair of reference bit lines are provided to which initially different potentials can be fed, which are subsequently amplified by a reference sense amplifier. At least one electronic component is disposed within the recess, and the conductors of the component are routed through the lead channels. In a preferred embodiment, the plurality of auxiliary electrodes are mesh-type electrodes and are annular in shape and concentrically disposed, and thus the electrolyte solution can readily flow between them.