Patent ID: 7168150

Claim:
A method of making a resonant frequency tag which resonates at a desired frequency, the method comprising the steps of: (a) forming a first conductive pattern comprising an inductive element and a first land, the first land having a first end connected to one end of the inductive element, and a second end spaced a predetermined distance from the first end; (b) separately forming a second conductive pattern comprising a second land and a link element, the second land having a predetermined width; (c) placing the second conductive pattern proximate to the first conductive pattern at a first predetermined location so that the second land overlies at least a portion of the first land with a dielectric therebetween to establish the plates of a capacitive element with a predetermined capacitance which with the inductive element forms a resonant circuit; (d) measuring a resonant frequency of the resonant circuit and comparing the measured frequency with the desired frequency; and (e) if the resonant frequency does not match the desired frequency within a selected tolerance, moving the second conductive pattern so that the second land moves along a length of the first land to thereby change the capacitance of the capacitive element, whereas if the resonant frequency does match the desired frequency, securing the second conductive pattern to the first conductive pattern.