摘要 |
<p>In the production of resonance tags, a coil in the form of a spiral (2) and a first capacitor surface (3), lying adjacent to the innermost winding of the spiral, and furthermore an additional surface (4), adjacent to the outer end of the spiral (2), are produced on only one side of a carrier film (1), from the aluminium foil existing thereon, by etching methods. On the other side of the carrier film (1), an aluminium foil strip (5) is sealed on in a superimposed position with respect to the first capacitor surface (3), some of the windings of the spiral (2) and the additional surface (4). This forms the second capacitor surface and, after production of an electrical connection between this strip (5) and the additional surface (4) on the other side, an electrical resonant circuit is formed. The use of the sealed-on aluminium foil strip (5) reduces the use of the etching method to only one side, with the advantage that significantly less toxic etching sediment is produced. …<IMAGE>… </p> |