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| Audiometric testing, analyzing, and recording apparatus and method |
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| Methods and devices for controlling facsimile transmissions of confidential information |
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| Electro-optic device board |
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| Integrated self-powered tire revolution counter |
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| Fish-bite indicator |
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| Method and system for facility security |
| The present invention relates to a method and system for airport or building security where a ... |
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Wireless memory device
| Details |
Inventors: Wiklof, Christopher A.; Hugh, Steven C.; Austin, Pixie Ann;
Assignee: Intermec IP Corporation (Beverly Hills, CA)
Primary Examiner: Mullen; Thomas
Assistant Examiner:
Attorney, Agent or Firm: Perkins Coie LLP
A memory device comprises a substrate, an antenna on a first surface of the substrate, a microelectronic structure coupled to the antenna, a selectively deformable intermediate layer covering the first surface, the antenna and the microelectronic structure and conforming thereto, and an adhesive layer covering the intermediate layer. The intermediate layer may be deformable for selectively positioning the antenna with respect to the adhesive, and positioning the antenna with respect to an item to which the memory device is secured. The intermediate layer may be compressed, creating a relatively low profile for printing on the memory device. The intermediate layer may be an elastomerically compressible material, such as foam, or may be a selectively pressurizable and deformable envelope. A substantially planar surface of the intermediate layer provides a smooth surface for further manufacturing steps such as forming a protective film layer, a conductive ground layer, or for depositing adhesive and die cutting the RF tag onto a release liner. A face sheet may be positioned on the second surface of the substrate to provide a smooth surface for printing. Alternatively, the intermediate layer may provide a substantially planar surface for the face sheet. The ground layer may be formed from a spent transfer ribbon. A second ground layer and a dielectric layer may form a capacitor. |
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DETAILED DESCRIPTION Under one aspect of the invention, a memory device comprises a substrate, an antenna formed on a first surface of the substrate, an electronic structure carried by the substrate and coupled to the antenna, a selectively deformable intermediate layer covering the first surface, the antenna and the electronic structure, and an adhesive layer covering the intermediate layer.
The intermediate layer is deformable for selectively positioning the antenna with respect to the adhesive layer, and thereby positioning the antenna with respect to an item or container to which the memory device is secured.
The intermediate layer may be compressed, creating a relatively low profile for permitting printing on the memory device.
In use, the intermediate layer may be in an uncompressed state, thereby spacing the antenna relatively from the adhesive layer and consequently spacing the antenna from the item or package to which the memory device is secured.
The intermediate layer may take the form of a foam material, such as a slow recovery polyurethane foam.
Alternatively, the intermediate layer may take the form of a selectively pressurizable and deformable envelope.
The pressure within the envelope relative to a pressure outside the envelope may be selectively varied by a number of means, such as, in situ chemical reaction, a reaction triggered by electromagnetic energy, and the introduction of fluid into the envelope through an inlet valve.
The envelope may have a deformable meniscus, and may be formed of an elastomeric material.
The intermediate layer generally conforms to the first surface of the substrate, the antenna and the microelectronic structure, while providing a substantially planar surface opposed to the first surface of the substrate.
The substantially planar surface of the intermediate layer provides a smooth and continuous surface for further manufacturing operations such as forming a protective film layer, a conductive ground layer, or for depositing adhesive, laminating the memory device onto a release liner and die-cutting the memory device
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Communications 
