Laminate RFID label and method of manufacture
First Claim
Patent Images
1. 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.
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Accused Products
Abstract
A laminated label has a first conductive material defining electrical attachment pads; a dielectric material surrounding the attachment pads; a second conductive material deposited on the dielectric material and forming an antenna electrically connected to the attachment pads. A layer of expandable material forms a protective cavity surrounding the attachment pads. An IC chip is received in the protective cavity and connected to the antenna.
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Citations
28 Claims
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1. A laminated article for use as an RFID label, said article comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. In a laminate RFID label having an integrated circuit chip mounted thereon, the improvement therein comprising:
a layer of expandable material which extends inward from a tag boundary to define a protective cavity that surrounds the integrated circuit chip and being curable to expand in thickness sufficient to protect the integrated circuit chip, wherein said expandable material is selected from a group consisting of a thermally expandable ink and a binder including an expandable additive. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. In a laminate RFID label having an integrated circuit chip mounted thereon, the improvement therein comprising:
a layer of expandable material which extends inward from a tag boundary to define a protective cavity that surrounds the integrated circuit chip and being curable to expand in thickness sufficient to protect the integrated circuit chip, wherein said integrated circuit chip has a thickness and said expandable material is expanded to a thickness substantially equal to said chip thickness.
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22. A method of making a laminated article for use as an RFID label comprising the steps of:
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depositing a first electrically conductive material to form two attachment pads;
depositing a dielectric material in a layer surrounding said attachment pads;
depositing a second electrically conductive material onto said dielectric material, said second electrically conducting material being shaped to define an antenna;
depositing an expandable material in a layer 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 said expandable material to form a protective cavity containing said attachment pads. - View Dependent Claims (23, 24, 25)
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26. A laminated article for use as an RFID label, said article comprising:
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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 expanding the expandable material increases the height of the protective cavity, and said expandable material can be applied by printing.
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27. In a laminate RFID label having an integrated circuit chip mounted thereon, the improvement therein comprising:
a layer of expandable material which extends inward from a tag boundary to define a protective cavity that surrounds the integrated circuit chip and being curable to expand in thickness sufficient to protect the integrated circuit chip, and said layer of expandable material can be applied by printing.
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28. A method of making a laminated article for use as an RFID label comprising the steps of:
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depositing a first electrically conductive material to form two attachment pads;
depositing a dielectric material in a layer surrounding said attachment pads;
depositing a second electrically conductive material onto said dielectric material, said second electrically conducting material being shaped to define an antenna;
depositing an expandable material in a layer surrounding said attachment pads wherein said expandable material is deposited by printing; and
expanding said expandable material to form a protective cavity containing said attachment pads.
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Specification