Patent ID: 6262692
Filing Date: 2001-07-17
Classification: B60C,G06K,H01L,H01Q,Y10T

Abstract:
A laminated article for use as an RFID label, said article comprising:a first conductive material shaped to define two electrical attachment pads;a dielectric material which forms a second layer that surrounds said attachment pads and extends outward therefrom to form a label boundary;a second conductive material deposited on said dielectric material and shaped to form an antenna having two portions which electrically connect to the respective attachment pads;an expandable material disposed over the antenna and extending inward from the label boundary to define a protective cavity surrounding said attachment pads, wherein said expandable material is selected from a group consisting of a thermally expandable ink and a binder including an expandable additive, and expanding the expandable material increases the height of the protective cavity.