WO2006067989A1 - 非接触型データ受送信体 - Google Patents
非接触型データ受送信体 Download PDFInfo
- Publication number
- WO2006067989A1 WO2006067989A1 PCT/JP2005/022782 JP2005022782W WO2006067989A1 WO 2006067989 A1 WO2006067989 A1 WO 2006067989A1 JP 2005022782 W JP2005022782 W JP 2005022782W WO 2006067989 A1 WO2006067989 A1 WO 2006067989A1
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- Prior art keywords
- antenna
- magnetic
- fine particles
- chip
- magnetic layer
- Prior art date
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- G—PHYSICS
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- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/22—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for use in combination with accessories specially adapted for information-bearing cards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07771—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/28—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
- H01Q19/021—Means for reducing undesirable effects
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
Definitions
- the present invention relates to a non-contact type data receiving / transmitting body capable of receiving external force information using an electromagnetic wave as a medium and transmitting information to the outside like an information recording medium for RFID (Radio Frequency IDentification) About.
- RFID Radio Frequency IDentification
- non-contact such as information recording media for RFID (Radio Frequency IDentification) applications such as non-contact IC tags
- RFID Radio Frequency IDentification
- non-contact IC tags can receive information from the outside using electromagnetic waves as a medium, and can transmit information to the outside.
- a type data receiver / transmitter is proposed!
- An IC label which is an example of a non-contact type data receiver / transmitter, generates an electromotive force in an antenna due to a resonance action when receiving electromagnetic waves with the power of a reader Z writer, and this electromotive force activates an IC chip in the IC label.
- the information in the chip is converted into a signal, and this signal is transmitted from the antenna of the IC label.
- the signal transmitted from the IC label card is received by the antenna of the reader Z writer and sent to the data processing device through the controller for data processing such as identification.
- FIG. 3 is a schematic diagram showing the flow of magnetic flux when an IC label is placed on the surface of a metal article. Since the magnetic flux 102 generated from the reader Z writer 101 becomes parallel on the surface of the metal article 103, the magnetic flux passing through the antenna 105 of the IC label 104 placed on the surface of the metal article 103 is reduced and induced by the antenna 105. IC chip 10 6 stops working.
- FIG. 4 is a perspective view of an IC tag according to the embodiment of Patent Document 1.
- An antenna 111 is wound around a rectangular ferrite core 115, and the antenna 111 is wound around.
- An IC chip 112 and a capacitor 113 are mounted on the ferrite core 115 via the via.
- FIG. 5 is a cross-sectional view showing an embodiment of Patent Document 2.
- the IC label antenna 121 is composed of a conductor 12 la wound in a spiral shape in a plane, a plate-like or sheet-like magnetic core member 123 bonded to one side of the IC label antenna 121, and the magnetic core member A conductive material portion 124 is provided on the lower surface of 123.
- the magnetic core member 123 crosses a part of the IC label antenna 121 on the other surface of the base substrate on which the IC label antenna 121 is provided, and has one end on the outside of the IC label antenna 121. It is stacked so that the other end comes to the central part (inside) 122 of the IC label antenna 121.
- the conductive member 124 since the conductive member 124 is laminated and bonded to the other surface of the base substrate on which the IC label antenna 121 is provided so as to cover the magnetic core member 123, the conductive member 124 will block the passage of radio waves to the article. Therefore, the IC label antenna 121 is less affected regardless of whether the article 125 is a metal or not, and even if the surface of the article 125 is made of metal, the vortex generated on the metal surface is reduced. Loss due to current and the like does not occur, and the IC label operates reliably even if it is attached to the metal article 125.
- Patent Document 1 if the diameter of the antenna 111 is increased in order to increase the magnetic flux passing through the antenna 111 in order to increase the induced electromotive force, the thickness of the IC label increases. There is a problem.
- Patent Document 2 provides a magnetic core member and a conductive member on one surface of the base substrate, there is a problem that the thickness of the IC label also increases in this case.
- Non-Patent Document 1 Supervision by Nobuyuki Teraura, “Development and application of RF tags and the future of wireless IC chips”, first edition, CMC Publishing, February 28, 2003, pl21, Fig. 2
- Patent Document 1 Japanese Patent Laid-Open No. 2003-317052
- Patent Document 2 Japanese Patent Laid-Open No. 2003-108966
- the present invention has been made in view of the above circumstances, and suppresses an increase in the thickness of the non-contact type data transmitter / receiver, and reduces the operating electromotive force of the IC chip even in contact with an article containing at least a metal.
- An object of the present invention is to provide a contactless data receiving / transmitting body that can be used with an electromotive force that is sufficiently higher.
- the present invention provides an inlet composed of a base substrate and an antenna and an IC chip provided on one surface thereof and connected to each other, and an antenna and / or an IC chip constituting the inlet.
- a non-contact type data transmitter / receiver comprising a resin containing a filler made of magnetic fine particles as a main component.
- the non-contact type data receiving / transmitting body has a magnetic layer disposed so as to cover either the antenna or the IC chip constituting the inlet, or both of them. Therefore, even when it is in contact with an article containing at least a metal, the magnetic flux is captured by the antenna through the magnetic layer, so that an induced electromotive force sufficient to operate the IC chip can be generated in the antenna.
- the magnetic layer so as to cover either the antenna or the IC chip or both of them, the function as a protective layer can be exhibited.
- the magnetic fine particles have an average particle size of 3 ⁇ m or more and 200 ⁇ m or less.
- the magnetic fine particles constituting the magnetic layer can form a single connected magnetic body. Therefore, the relative permeability of the magnetic layer is increased, and the magnetic flux passing through the magnetic layer is increased. As a result, an induced electromotive force sufficient to operate the IC chip on the antenna is easily generated.
- the magnetic fine particles have a flat shape.
- the magnetic fine particles are preferably sendust.
- the magnetic flux can easily pass through the magnetic layer and the magnetic flux is easily captured by the antenna, compared to the case of using other magnetic fine particles.
- the non-contact type data transmitting / receiving body of the present invention includes a magnetic material layer disposed so as to cover either one or both of the antenna and the IC chip constituting the inlet. An induced electromotive force sufficient to operate the IC chip is generated in the antenna even when it is in contact with an article containing at least metal.
- FIG. 1 is a schematic cross-sectional view showing a first embodiment of a contactless data receiving / transmitting body according to the present invention.
- FIG. 2 is a schematic cross-sectional view showing a second embodiment of the non-contact type data transmitting / receiving body according to the present invention.
- FIG. 3 is a schematic diagram showing the flow of magnetic flux when a normal non-contact type data receiving / transmitting body is placed on the surface of a metal article.
- FIG. 4 is a schematic perspective view showing an example of a conventional non-contact type data receiving / transmitting body.
- FIG. 5 is a schematic cross-sectional view showing another example of a conventional non-contact type data receiving / transmitting body. Explanation of symbols
- FIG. 1 is a schematic sectional view showing a first embodiment of a contactless data receiving / transmitting body according to the present invention.
- the contactless data receiving / transmitting body 10 of this embodiment includes a base substrate 11, an antenna 12 provided on one surface of the base substrate 11, and an inlet 14 that is also connected to the IC chip 13, and these antennas 12. And a magnetic layer 15 disposed so as to cover the IC chip 13.
- the magnetic layer 15 is made of a composite containing at least a filler having a magnetic fine particle force in a resin.
- the antenna 12 and the IC chip 13 are provided on the same surface (one surface) of the base substrate 11. Then, the connecting bridge force forming a part of the antenna is provided on the surface opposite to the surface on which the main part of the antenna is provided (the surface opposite to the one surface described above).
- the end portions of the antenna 12 are connected to the bipolar terminals of the IC chip 13, respectively. Is Rukoto.
- the antenna 12 and the IC chip 13 are formed so that the composite comprising the magnetic layer 15 and composed of the filler and the resin made of the magnetic fine particles covers the antenna 14 and the IC chip 13. It is to cover the IC chip 13 so that it is hidden. It is more preferable that the magnetic layer 15 covers the antenna 12 and the IC chip 13 so that the surface (open surface) of the magnetic layer 15 is flat.
- the magnetic layer 15 when the non-contact type data transmitting / receiving body 10 is viewed from one surface side of the base substrate 11, a large number of magnetic fine particles constituting the magnetic layer 15 are at least Part of them overlap each other to form one connected magnetic body.
- a composite that forms the magnetic layer 15 is filled between the antennas 12 that are provided in a coil shape. As a result, all or part of the magnetic fine particles that form the composite are formed of the antenna 12. Arranged in between.
- a woven fabric, a nonwoven fabric, a mat, paper, or the like made of an inorganic fiber such as glass fiber or alumina fiber, or a combination thereof, a polyester fiber, a polyamide fiber Woven fabrics, non-woven fabrics, mats, paper, etc.
- an electrically insulating film or sheet made of polyethylene terephthalate or polyimide is preferably used.
- the antenna 12 is formed by screen printing in a predetermined pattern on one surface of the base substrate 11 using polymer-type conductive ink, or formed by etching a conductive foil. It is.
- Examples of the polymer type conductive ink in the present invention include conductive materials such as silver powder, gold powder, platinum powder, aluminum powder, radium powder, rhodium powder, carbon powder (carbon black, carbon nanotube, etc.). Examples thereof include those in which fine particles are blended in a rosin composition.
- the polymer-type conductive ink is capable of forming a coating film that forms the antenna 12 at 200 ° C or less, for example, about 100 to 150 ° C. Become a mold. Flow paths electricity coating forming the antenna 12 is formed by conductive particles forming a coating film are in contact with each other, the resistance value of the coating film is a 10- 5 ⁇ 'cm Order
- the polymer type conductive ink in the present invention may be a known type such as a photocurable type, a permeation drying type, or a solvent volatile type.
- the photocurable polymer-type conductive ink contains a photocurable resin in the resin composition and has a short curing time, so that the production efficiency can be improved.
- the photo-curing polymer type conductive ink include, for example, a thermoplastic resin only, or a blended resin composition of a thermoplastic resin and a crosslinkable resin (particularly, a crosslinked resin using a polyester polyol and an isocyanate).
- 60% by weight or more of conductive fine particles are blended, and polyester resin is 10 layers.
- a compound containing more than 5% by weight, that is, a solvent volatile type or a crosslinked Z thermoplastic combination type (however, the thermoplastic type is 50% by weight or more) is preferably used.
- a flexibility-imparting agent can be added to the polymer type conductive ink.
- the flexibility-imparting agent examples include polyester-based flexibility imparting agent, acrylic-based flexibility imparting agent, urethane-based flexibility imparting agent, polyacetic acid-based flexibility imparting agent, and thermoplastic elastomer-based.
- examples thereof include flexibility imparting agents, natural rubber-based flexibility imparting agents, synthetic rubber-based flexibility imparting agents, and mixtures of two or more thereof.
- examples of the conductive foil forming the antenna 12 include copper foil, silver foil, gold foil, platinum foil, and aluminum foil.
- the IC chip 13 is not particularly limited, and may be a non-contact IC tag or a non-contact IC label as long as information can be written and read in a non-contact state via the antenna 12.
- V can be used as long as it can be applied to RFID media such as contactless IC cards.
- the composite that forms the magnetic layer 15 is made of a filler made of magnetic fine particles and an organic resin made of a thermosetting compound or a thermoplastic compound, or an inorganic resin made of an inorganic compound. .
- this composite is used in the form of a coating containing additives and a solvent, with magnetic fine particles uniformly dispersed by a process such as coating and drying.
- the average particle size of the magnetic fine particles is 3 ⁇ m or more and 200 ⁇ m or less, more preferably 5 m or more and 150 m or less, more preferably 5 m or more and 100 m or less.
- the non-contact type data receiving / transmitting body 10 viewed from one surface side of the base substrate 11 has a large number of magnetic fine particles constituting the magnetic layer 15 as follows: At least some of them overlap each other to form one connected magnetic body.
- the magnetic flux is captured by the antenna 12 through the magnetic layer 15, so that the IC chip 13 is operated by the antenna 12. Therefore, it is possible to generate an induced electromotive force sufficient for the above.
- the antenna 12 is coiled as in this embodiment. Even when provided, the magnetic fine particles can be filled between the antennas 12. Thus, if magnetic fine particles are arranged between the antennas 12, the magnetic flux is more easily captured by the antennas 12.
- the average particle size of the magnetic fine particles is less than 3 m, it becomes difficult to form one magnetic material in which the magnetic fine particles constituting the magnetic layer 15 are connected, and the relative permeability of the magnetic layer 15 becomes small. That is, the magnetic flux passing through the magnetic layer 15 is reduced, and as a result, it is difficult for the antenna 12 to generate an induced electromotive force sufficient to operate the IC chip 13.
- the antenna 12 if the average particle size of the magnetic fine particles exceeds 200 m, the antenna 12 not only becomes difficult to fill the magnetic fine particles between the antennas 12 when the antenna 12 is provided in a coil shape. May be short-circuited.
- the non-contact type data transmitting / receiving body of the present invention is sufficient even if the magnetic fine particles forming the magnetic layer 15 vary in particle diameter. The effect is demonstrated.
- the amount of magnetic fine particles in the magnetic layer 15 is preferably 50% by weight or more and less than 75% by weight, more preferably 60% by weight or more in consideration of adhesion to the IC chip 13 or the like. More preferably, it is 73 wt% or less. If the filling amount of the magnetic fine particles in the magnetic layer 15 is less than 50% by weight, it becomes difficult to form one magnetic material in which the magnetic fine particles constituting the magnetic layer 15 are connected, and the relative permeability of the magnetic layer 15 is small. Become. That is, the magnetic flux passing through the magnetic layer 15 is reduced, and as a result, it is difficult to generate an induced electromotive force sufficient to operate the IC chip 13 in the antenna 12.
- the magnetic particle filling amount in the magnetic layer 15 is 75% by weight or more, the communication distance of the non-contact type data receiving / transmitting body is not greatly improved. At the same time, there is a problem that the toughness of the magnetic layer is significantly impaired.
- the magnetic fine particles may have a disk shape, a flat shape, a needle shape, a granular shape, and other various shapes.
- the shape of the magnetic fine particles is preferably a flat shape.
- the magnetic fine particles are flat, when the non-contact type data receiving / transmitting body 10 is viewed from one side of the base substrate 11, a large number of magnetic fine particles constituting the magnetic layer 15 are at least It is easy to form one magnetic body that overlaps each other and is connected. Therefore, the magnetic flux is more easily captured by the antenna through the magnetic layer.
- the material of the magnetic fine particles for example, Sendust (Fe Si-Al alloy), carbon iron, permalloy (Fe Ni alloy), carbon steel (Fe Si alloy), Fe Cr alloy, Fe Co Alloy, Fe Cr A1 alloy, general formula (Fe, M) O (M is a divalent to pentavalent metal ion Fe 2
- the magnetic fine particle material is sendust, the saturation magnetic flux density and magnetic permeability of the magnetic layer 15 containing this as a constituent element increase, so that the magnetic flux is more easily captured by the antenna 12 through the magnetic layer 15. . Furthermore, if the shape of the magnetic fine particles is flat, the non-contact type data receiving / transmitting body 10 is viewed from one surface side of the base substrate 11, and a large number of magnetic fine particles constituting the magnetic layer 15 are At least some of them overlap each other, and it is easy to form a single connected magnetic material. Therefore, the magnetic flux is more easily captured by the antenna 12 through the magnetic layer 15.
- Sendust is used as the magnetic fine particles, flattening that is more difficult to crush can be easily performed and the magnetic layer 15 having excellent magnetic permeability can be formed.
- the magnetic properties of the magnetic layer 15 are not limited. Fine particles other than Sendust can be used.
- the magnetic fine particles constituting the magnetic layer 15 a plurality of types may be mixed and used.
- the shape of the magnetic fine particles forming the magnetic layer 15 does not have to be either powdery or flat.
- the magnetic layer 15 includes powdered magnetic fine particles and a flat surface. Even if magnetic fine particles having different shapes are mixed, the non-contact type data receiving / transmitting body of the present invention is sufficiently effective.
- Examples of the resin constituting the composite constituting the magnetic layer 15 include thermoplastic resin, thermosetting resin, reactive resin, and the like. In addition, it is appropriately selected in consideration of work efficiency and use conditions.
- thermoplastic resin examples include vinyl chloride, vinyl acetate, vinyl acetate-ethylene copolymer, butyl acetate acrylate copolymer, salt-hybryl monosalt-vinylidene copolymer, salt-but-acrylonitrile.
- Copolymer Acrylate ester-Atari mouth-tolyl copolymer, Acrylate ester monosalt-Hybull monosalt-Hyburidene copolymer, Atalic acid ester monosalt-Hyburidene copolymer, Methacrylic acid ester monosalt-Hyburidene copolymer , Methacrylic acid ester vinyl monochloride copolymer, methacrylic acid ester-ethylene copolymer, polyvinyl fluoride, salt vinylidene-acrylonitrile copolymer, attalytri-tolyl butadiene copolymer, polyamide resin, polybuluchi Lar, cellulose derivative (senorelose acetate Butyrate, cellulose diacetate, cenorelose triacetate, cellulose propionate, nitrocellulose), styrene butadiene copolymer, polyurethane resin, saturated polyester resin, or styrene rubber, fluorine rubber
- thermosetting resin or reactive resin examples include phenol resin, epoxy resin, polyurethane curable resin, urea resin, melamine resin, alkyd resin, silicon resin, amino resin.
- thermosetting resin or reactive resin such as fat and unsaturated polyester resin can be used.
- Additives contained in the magnetic coating used to form the composite that forms the magnetic layer 15 include viscosity modifiers, antifoaming agents, leveling agents, preservatives, dispersants, reinforcing agents.
- a sticky agent, a mixing agent, a pigment and the like are appropriately selected and used.
- the solvent contained in the magnetic coating material includes hexane, cyclohexane, methylcyclohexane, toluene, xylene, ethylbenzene; methanol, ethanol, butanol.
- Alcohols such as methyl, isobutanol, propyl alcohol, isopropyl alcohol; ketones such as cyclohexanone, methylcyclohexanone, methyl ethyl ketone, acetone, methyl isobutyl ketone, diisobutyl ketone, isophorone; ethyl acetate, butyl acetate , Amyl acetate, cyclohexyl acetate, methyl acetate acetate, ethyl acetate acetate, dimethyl adipate, dimethyl glutamate, dimethyl oxalate, etc .; Ether type such as Noleyatenore; ⁇ -Terviol, Ethylene glycol monomethyl ether, Ethylene glycolone Monochine ethenore, Ethylene glycol Nole monobutenoleetenole, Ethylene glycol -Resin methinore ethenore
- the magnetic layer 15 is disposed so as to cover either the antenna 12 or the IC chip 13 or both of them.
- the magnetic flux is captured by the antenna 12 through the magnetic layer 15, so that an induced electromotive force sufficient to operate the IC chip 13 is generated in the antenna 12. be able to.
- the magnetic layer 15 is formed so as to cover either the antenna 12 or the IC chip 13 or both of them, the function as a protective layer can be exhibited.
- the antenna 12 is illustrated as being provided in a coil shape on one surface of the base substrate 11, but the non-contact type data receiving / transmitting body of the present invention is not limited to this. I can't.
- a method such as a pole shape, a bent pole shape, or a loop shape may be adopted as long as it employs electromagnetic induction and a microwave radio wave method.
- the electromotive force is obtained, there may be differences in the shape of the antenna.
- the coil-shaped antenna 12 and the IC chip 13 are provided separately on one surface of the base substrate 11 and are connected to each other.
- the non-contact type data transmitting / receiving body of the present invention is not limited to this.
- the IC chip may be mounted on the antenna or the antenna may be formed on the IC chip.
- the magnetic layer 15 arranged so as to cover the antenna 12 and the IC chip 13 is exemplified, but the non-contact type data receiving / transmitting body of the present invention is not limited to this.
- a magnetic layer may be disposed so as to cover only the antenna or only the IC chip.
- the case where the magnetic layer is disposed so as to cover only the antenna is, for example, a case where the antenna is formed on the IC chip.
- the antenna 1 having a predetermined thickness and a predetermined pattern is formed on one surface of the base substrate 11.
- the polymer-type conductive ink is formed on one surface of the base substrate 11 to have a predetermined thickness and a predetermined pattern by screen printing. After printing, the polymer type conductive ink is dried and cured to form the antenna 12 having a predetermined thickness and a predetermined pattern.
- the antenna 12 is formed of a conductive foil, the following procedure is followed.
- an etching resistant paint is printed on the conductive foil in a predetermined pattern by a silk screen printing method. After drying and solidifying this anti-etching paint, it is immersed in an etching solution to give an anti-etching paint.
- the antenna 12 having a predetermined pattern is formed by dissolving and removing the copper foil and leaving the copper foil portion coated with the etching resistant paint on one surface of the base substrate 11. .
- the antenna 12 and the IC chip are coated with a magnetic paint containing a filler that also has magnetic fine particle force, a resin, a calcining agent, and a solvent by a screen printing method or the like. Apply to the extent that 13 is slightly hidden, or to the extent that it is sufficiently hidden. After applying the magnetic paint, leave it at room temperature, or heat it at a predetermined temperature for a predetermined time to dry and solidify, thereby forming the magnetic layer 15 to form a non-contact data transmitter / receiver 10 is obtained (magnetic layer forming step).
- the antenna 12 As a method for forming the antenna 12, the power exemplified by the screen printing method and the etching method is not limited thereto.
- the antenna can also be formed by a vapor deposition method or an ink jet printing method.
- the screen printing method is exemplified as a method for forming the magnetic layer 15, but the present invention is not limited to this.
- the magnetic layer can be formed by an ink jet printing method or the like.
- FIG. 2 is a schematic sectional view showing a second embodiment of the contactless data receiving / transmitting body according to the present invention.
- the non-contact type data receiving / transmitting body 20 of this embodiment includes a base substrate 21, an antenna 22 and an IC chip 23 provided on one surface thereof, and an inlet 24 that also acts as a force, and these antenna 22 and IC.
- the magnetic layer 25 is arranged so as to cover the chip 23, and the protective member 26 is abutted against and joined to the base substrate 21.
- the magnetic layer 25 is also composed of a composite force containing at least a filler such as a magnetic fine particle in the resin.
- an inlet 24 is arranged in a sealed space in the casing made up of the base substrate 21 and the protective member 26. [0068] With such a configuration, the inlet 24 can be concealed and the inlet 24 can be prevented from being damaged.
- a contactless data receiver / transmitter as shown in Fig. 1 was fabricated.
- the permeability and communication distance at a frequency of 13.5 MHz were measured for the five types of contactless data receivers / transmitters obtained.
- the permeability was measured by using an impedance analyzer (model: E4991A, manufactured by Agilent Technologies) and a test fixture (model: 16454A, manufactured by Agilent Technologies) using the V and RF methods.
- a non-contact type data transmitter / receiver was subjected to a tensile test by the method of JIS K7127, and the elongation at break (%) was measured.
- the tensile speed was 50 mmZmin.
- the communication distance was measured as follows. A contactless data receiving / transmitting body having an antenna antenna with an antenna size of 20 mm X 60 mm was placed on a metal plate 15 cm long, 15 cm wide and 5 mm thick. In this state, the contactless data receiver / transmitter that was brought into contact with a reader having an antenna with an antenna size of 61 mm X 29 mm was gradually separated from the reader, and the distance at which communication was disabled was defined as the communication distance.
- the standard of communication distance evaluation is as follows.
- Criteria for comprehensive evaluation results are: A: Suitable as a non-contact type data transmitter / receiver, B: Slightly suitable as a non-contact type data transmitter / receiver (The magnetic layer has toughness, and communication is possible. However, it cannot be said that it has a sufficient function as a non-contact type data receiver / transmitter with a short communication distance).
- the non-contact type data receiving / transmitting body of the present invention is not limited to an IC tag or the like that is incorporated between two substrates, and is a non-contact type that is used by peeling off the peeling substrate force. It can also be applied to type data receivers / transmitters.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Credit Cards Or The Like (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/720,299 US8020772B2 (en) | 2004-12-20 | 2005-12-12 | Noncontact data receiver/transmiter |
EP05814305A EP1826710A4 (en) | 2004-12-20 | 2005-12-12 | CONTACTLESS DATA RECEIVER / TRANSMITTER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004368091 | 2004-12-20 | ||
JP2004-368091 | 2004-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006067989A1 true WO2006067989A1 (ja) | 2006-06-29 |
Family
ID=36601591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022782 WO2006067989A1 (ja) | 2004-12-20 | 2005-12-12 | 非接触型データ受送信体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8020772B2 (ja) |
EP (1) | EP1826710A4 (ja) |
KR (1) | KR100957478B1 (ja) |
CN (1) | CN101091191A (ja) |
TW (1) | TW200634641A (ja) |
WO (1) | WO2006067989A1 (ja) |
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US9064198B2 (en) * | 2006-04-26 | 2015-06-23 | Murata Manufacturing Co., Ltd. | Electromagnetic-coupling-module-attached article |
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DE102006036286A1 (de) * | 2006-08-03 | 2008-02-14 | Giesecke & Devrient Gmbh | Sicherheitselemente für Antennen |
TW200917288A (en) * | 2007-10-15 | 2009-04-16 | Sekishin Kogyo Co Ltd | Metallic magnetic material for magnetic element of a choke coil and SMD choke coil |
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KR101931636B1 (ko) * | 2012-05-16 | 2018-12-21 | 엘지이노텍 주식회사 | 통신 단말의 안테나 및 그 제조 방법 |
JP2015002440A (ja) * | 2013-06-14 | 2015-01-05 | 富士通株式会社 | アンテナモジュールおよび端末装置 |
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- 2005-12-12 US US11/720,299 patent/US8020772B2/en not_active Expired - Fee Related
- 2005-12-12 CN CNA2005800429904A patent/CN101091191A/zh active Pending
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US8807438B2 (en) * | 2006-02-22 | 2014-08-19 | Toyo Seikan Kaisha, Ltd. | RFID tag substrate for metal component |
US8973833B2 (en) * | 2006-02-22 | 2015-03-10 | Toyo Seikan Kaisha Ltd. | RFID tag substrate for metal component |
Also Published As
Publication number | Publication date |
---|---|
KR20070088698A (ko) | 2007-08-29 |
US8020772B2 (en) | 2011-09-20 |
TW200634641A (en) | 2006-10-01 |
CN101091191A (zh) | 2007-12-19 |
KR100957478B1 (ko) | 2010-05-14 |
EP1826710A1 (en) | 2007-08-29 |
EP1826710A4 (en) | 2009-06-17 |
US20080191028A1 (en) | 2008-08-14 |
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