Patent ID: 7386936

Claim:
A method for manufacturing an electrically conductive pattern, the method comprising: printing a layer comprising metal oxide on a surface of a carrier substrate; reducing the metal oxide to metal; and transferring the reduced layer to an application substrate, wherein the metal oxide comprises copper oxide, and wherein the method further comprises forming a paste with a fine-grained copper oxide powder having a particle size of the order of 10 μm or less, a binding agent and optional alloying elements and additives; applying the paste in a desired shape on the surface of the carrier substrate; and metallizing and sintering the copper oxide in the paste on the surface of the carrier substrate at an elevated temperature in order to form an electrically conductive pattern, the carrier substrate, having a substantially non-adhesive surface to allow the electrically conductive pattern to be detached from the carrier substrate, the non-adhesive surface being made of a material capable of withstanding the elevated temperatures used for the metallization and sintering and the surface of the carrier substrate non-reacting with the substances contained in the paste, wherein the electrically conductive pattern is a circuitry pattern of a transponder, and an integrated circuit on a chip is electrically connected to the circuitry pattern, and wherein an electrical contact is formed between the circuitry pattern and the chip before transferring the electrically conductive pattern to the application substrate.