Security tag and process for making same

B - Operations – Transporting – 32 – B

Patent

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B32B 15/00 (2006.01) B32B 38/10 (2006.01) G08B 13/24 (2006.01)

Patent

CA 2460565

A method of making a resonant frequency circuit is disclosed. The method includes the steps of: (1) forming a first adhesive layer in a first predetermined pattern on a surface of a first substrate; (2) laminating a first conductive foil to the surface of the first substrate to form a first conductive layer; (3) forming a first portion of the first conductive layer in a shape generally corresponding to the first predetermined pattern; and (4) removing a second portion of the first conductive layer not corresponding to the first portion to establish a first conductive trace on the first substrate. A third conductive trace is formed on a third substrate. The third conductive trace is secured to the first conductive trace with a dielectric layer therebetween to form the resonant frequency circuit.

Procédé de fabrication d'un circuit à fréquence résonante. Il consiste en ce qui suit: (1) former une première couche adhésive selon un premier motif prédéterminé à une surface d'un premier substrat; (2) laminer un premier feuil conducteur à la surface du premier substrat pour former une première couche conductrice; (3) former une première partie de la première couche conductrice d'après une forme correspondant de manière générale à la première couche prédéterminée et; (4) retirer une deuxième partie de la première couche conductrice qui ne correspond pas à la première partie pour établir un premier tracé conducteur sur le premier substrat. Un troisième tracé conducteur est formé sur un deuxième substrat. Le troisième tracé conducteur est solidarisé au premier tracé conducteur; avec une couche diélectrique placée entre ces derniers, ils forment ensemble le circuit à fréquence résonante.

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