Patent ID: 6892441
Filing Date: 2005-05-17
Classification: G06K,H01Q,H05K,Y10T

Abstract:
1. A method of forming electrically conductive pathways for radio frequency tags, comprising the steps of: providing a thermal transfer ribbon; moving the thermal transfer ribbon past a heat source; engaging the thermal transfer ribbon with a flexible receiver substrate as the thermal transfer ribbon moves past the heat source; using paper or pliable film as the receiver substrate; selectively heating portions of the thermal transfer ribbon with the heat source; transferring a composition from the thermal transfer ribbon to the receiver substrate, the selective heating enabling a desired pattern of the composition to be transferred to the paper or film receiver substrate, the composition transferred from the thermal transfer ribbon being an electrically conductive material; and electrically connecting said composition on said receiver substrate to a microchip to form an antenna for a radio frequency tag.