Integrated multilayer structure (100, 200, 300, 400, 500, 600, 700) comprising a first substrate film (102) having a first side (102A), said first substrate film comprising electrically substantially insulating material, said first substrate film preferably being formable and optionally thermoplastic, a plastic layer (112) molded onto said first side of the first substrate film so as to at least partially cover it, and circuitry (104, 106, 204, 205), optionally comprising an electronic, electromechanical and/or electro-optical component, provided on the second side of the first substrate film, said circuitry being functionally connected to the first side of the first substrate film.