<p>A method of forming electronic components in which a thermoplastic substrate is embossed to create a recess for electronic components; the electronic component is placed in the recess; electrical connections and circuitry are deposited over the components on the thermoplastic substrate; and a cover sheet of thermoplastic material is bonded over the circuitry. The process may also be carried out in reverse order. The apparatus used consists of a hot embossing machine having a former shaped for each particular circuit to be assembled; a pick and place machine with standard reel loading of components; and a screen printer for printing the conductive ink circuitry or a station for adhering conductive tape or preprinted film.</p>