Radio frequency identification device support and its manufacturing method
First Claim
1. A radio frequency identification device, comprisingan antenna screen printed on an antenna support, anda chip connected to connection terminals of said antenna,wherein a thermoplastic layer and a top layer of synthetic paper are laminated on said antenna support in such a way that said antenna and said chip are trapped in the thermoplastic layer and such that the thermoplastic layer, the antenna support, and the top layer of synthetic paper are inseparable,wherein said synthetic paper consist of a single unoriented layer of polymer which contains 40 to 80% of a mineral.
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Abstract
A radio frequency identification device support (2) featuring an antenna (12) screen-printed on a support (20) and a chip (10) connected to the connection terminals (17 and 19) of the antenna. According to a main characteristic of the invention, a thermoplastic layer (22) and a top layer of synthetic paper (24) are laminated on the antenna support (20) so that the antenna and the chip are trapped in the thermoplastic and the three layers (20, 22, and 24) cannot be separated and so that the device is resistant to water and humid environments.
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Citations
17 Claims
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1. A radio frequency identification device, comprising
an antenna screen printed on an antenna support, and a chip connected to connection terminals of said antenna, wherein a thermoplastic layer and a top layer of synthetic paper are laminated on said antenna support in such a way that said antenna and said chip are trapped in the thermoplastic layer and such that the thermoplastic layer, the antenna support, and the top layer of synthetic paper are inseparable, wherein said synthetic paper consist of a single unoriented layer of polymer which contains 40 to 80% of a mineral.
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12. A method for manufacturing a radio frequency identification device, the device comprising an antenna and a chip connected to the antenna, said method comprising the following steps:
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screen printing an antenna having contacts onto an antenna support, placing adhesive dielectric material between said contacts of the antenna, positioning the chip on said antenna support so that contacts of said chip are located opposite said contacts of said antenna, connecting the chip to said contacts of said antenna by exerting pressure on the chip, placing on said support a thermoplastic layer and a top layer of synthetic paper, the top layer being provided with a cavity at the location of the chip, laminating said antenna support, the thermoplastic layer and the top layer together to obtain a radio frequency identification device which is resistant to water and to humid environments, wherein said synthetic paper consists of a single unoriented layer of polymer which contains 40 to 80% of a mineral. - View Dependent Claims (14)
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13. A method for manufacturing a radio frequency identification device, the device comprising an antenna and a chip connected to the antenna, said method comprising the following steps:
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screen printing an antenna having contacts on an antenna support, placing adhesive dielectric material between said contacts of the antenna, positioning the chip on said antenna support so that contacts of said chip are located opposite said contacts of said antenna, connecting the chip to said contacts of said antenna by exerting pressure on the chip, placing on said antenna support a first thermoplastic layer, placing a second thermoplastic layer on a layer of synthetic paper, placing a top layer of a material that does not melt on the first and second thermoplastic layers, the top layer being provided with a cavity at the location of the chip, laminating together said antenna support, the thermoplastic layers, the layer of synthetic paper and the top layer to obtain a radio frequency identification device made up of two parts of identical dimension, one of these parts containing the radio frequency identification device, and a thinner part located between the two parts of identical dimension, wherein said synthetic paper consists of a single unoriented layer of polymer which contains 40 to 80% of a mineral. - View Dependent Claims (15)
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Specification