JP2006099534A - Non-contact recognition device and sheet-shaped product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the security protection of a non-contact recognition device when discarded by easily disabling the information reading function of a non-contact recognition device(RFID). <P>SOLUTION: This non-contact recognition device is provided with a storage part for storing information, a communication circuit for performing radio communication and antenna wiring on a substrate 2 to perform data communication by radio communication. A low-strength part 5 is formed on the substrate to cross any conductor line (for example, antenna 3) in the non-contact recognition device. The low-strength part 5 is formed of, for example, groove or perforation so as not to be overlapped with an IC 4. Also, a sheet-shaped product (for example, ticket) configured by arranging the non-contact recognizing device on a sheet material is disclosed. A cutting guiding part (for example, perforation) for guiding the cutting of the sheet material is formed on the sheet material, and the cutting guiding part is formed to pass through the arrangement region of the non-contact recognizing device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a non-contact recognition device and a sheet-like product, and more particularly to a technique for improving security by making it possible to easily lose the information reading function of a non-contact IC tag such as RFID. .

  With the advancement of IC technology, a non-contact type recognition device using proximity wireless communication called RFID (Radio Frequency Identification) or IC tag has been developed and is being used in recent years. Such a contactless recognition device (hereinafter sometimes simply referred to as a tag) generally includes an IC chip incorporating a communication circuit and a memory, and an antenna, and performs wireless communication with a host device (reader / writer) at a close range. It is possible to read information in the memory or write information in the memory.

  As a usage form of the non-contact recognition device, for example, a tag is attached to a ticket and it is determined whether or not it is a regular ticket (see Patent Document 1 below), and various sheet forms such as hospital charts and documents describing personal information A tag may be attached to a product, and various information may be stored in a memory, including information described on the sheet.

  When a tag is provided on such a sheet-like product, usually, an antenna is formed on a thin substrate using a film forming technique, an IC is mounted, and the IC is mounted on the surface or inside of the sheet (the following patent) References 2 and 3).

JP 2000-326672 A JP 2002-120475 A JP 2002-337482 A

  By the way, generally, when destroying documents containing confidential information such as personal information, it is widely done that the contents described in the documents are broken by hand so that they cannot be deciphered or shredded. Yes.

  However, in the sheet having the tag as described above, the information in the tag is often easily readable even after discarding, and the conventional tag or a sheet-like product with the tag is confidential. There is a problem of lack of retention.

  Because the tag provided on the sheet as described above is composed of an IC and an antenna provided on the substrate, for reasons of reproduction of the sheet (for example, paper) or for equipment reasons of damaging the blade, This is because it is often impossible to dispose of the shredder.

  On the other hand, when a person breaks by hand, since the tag substrate is harder than paper, the tag portion is not torn and is likely to remain as it is. Even if the document is torn finely, the tag remains on the torn piece of paper, and the information can be read out exactly as before.

  Accordingly, an object of the present invention is to improve the confidentiality of the non-contact recognition device, particularly at the time of disposal, by making it possible to easily lose the information reading function of the non-contact recognition device.

  In order to achieve the object and solve the problem, the contactless recognition apparatus according to the present invention includes a storage unit capable of storing information, a communication circuit, and an antenna wiring on a substrate, and performs data communication by wireless communication. A non-contact recognizing device capable of performing the above-mentioned, wherein a low-strength portion is provided on the substrate so as to cross any of the conductor lines in the non-contact recognizing device.

  In the non-contact recognition device of the present invention, the storage unit, the communication circuit, and the antenna wiring are provided on the substrate to form the non-contact recognition device, but the low strength portion is provided on the substrate, and the low strength portion is It is formed so as to intersect with any conductor line in the non-contact recognition device. Therefore, when a force of a certain level or more is applied to the substrate, the low strength portion is bent or the substrate is broken at the low strength portion. Thereby, disconnection occurs in the antenna wiring, the communication circuit, etc., the information reading function of the non-contact recognition device can be lost, and the information stored in the storage unit can be protected.

  The structure of the low-strength portion is not particularly limited as long as the strength is lower than that of other portions of the substrate. For example, the low-strength portion may be formed by a groove, or may be formed by a linear portion (a so-called perforation or the like) formed by arranging a plurality of small holes penetrating the substrate. According to such a structure, the low-strength portion can be formed more easily and at a low cost without performing any special processing or treatment on the material composition itself of the substrate.

  However, the low-strength portion referred to in the present invention is not limited to the structure formed by machining, such as the grooves and perforations, and for example, a part of the substrate is made of a material weaker than other parts, Alternatively, the low-strength portion can be formed by subjecting the substrate to physical or chemical treatment to change a part of the material of the substrate (for example, to make it brittle). Low strength parts are also included within the scope of the present invention.

  Moreover, you may provide a notch in the edge part of the board | substrate along the said low intensity | strength part.

  If the cut is provided as described above, the low-strength portion can be broken more reliably and easily from the cut.

  The conductor line where the low-strength portions intersect may be an antenna wiring.

  In the non-contact recognition device, the antenna wiring has a more complicated shape than other wiring (conductor lines). Therefore, if the conductor line where the low-strength part intersects easily is used as the antenna wiring, the low-strength part is destroyed. This is because the antenna wiring can be easily disconnected and the function of the non-contact recognition device can be lost.

  The substrate is preferably a flexible substrate.

  If such a flexible substrate is used, the non-contact recognition device can be flexed within a range where no disconnection occurs, so that the non-contact is applied to a sheet-like member such as paper or a resin film. The recognition device can be applied satisfactorily.

  In the non-contact recognition apparatus, it is preferable that the storage unit and the communication circuit are provided in an IC, and the low-strength unit is provided so as not to overlap with the IC.

  Since the board portion on which the low-strength portion is formed becomes easier to bend than other board portions, if the low-strength portion is provided in the IC mounting area, the substrate may be bent carelessly and the IC may be destroyed. It is. On the other hand, if the low-strength portion is provided so as to avoid the IC, it is possible to prevent a trouble that the function of the non-contact recognition device is lost unexpectedly.

  There are three types of contactless recognition devices: a type that can both read and write information, a write-once type that can be written only once, and a read-only type that can only be read. The non-contact recognition apparatus referred to in the invention includes any of these types.

  Moreover, the sheet-like product of the present invention is obtained by arranging the non-contact recognition apparatus according to the present invention on a sheet material.

  There are various sheet-like products and there is no particular limitation. For example, tickets such as tickets, coupons, admission tickets, discount tickets, gift certificates, various service tickets, or medical records, personal information documents, documents such as internal documents, and other forms of sheets that contain some information Articles are included, and the present invention can be widely applied to these.

  Further, the type, material, shape, size and the like of the sheet material are not particularly limited, and may be various sheet materials such as paper, resin film, cloth, composite sheet material formed of two or more materials, and the like. .

  Moreover, the said sheet-like product is equipped with the fracture | rupture induction | guidance | derivation part which can induce | guide | derive the fracture | rupture of the said sheet material, and this fracture | rupture induction | guidance | derivation part may be provided so that it may pass through the arrangement | positioning area | region of the said non-contact recognition apparatus.

  According to such a sheet structure, when the sheet-like product is torn down, the non-contact recognition device arranged on the sheet material is guided more easily and reliably by being guided by the breakage guide part and being broken. It is destroyed and information can be protected.

  The breaking guide part can be, for example, a linear part (a so-called perforation or the like) in which a plurality of small holes penetrating the sheet material are arranged. Can be formed.

  According to the present invention, the information reading function of the non-contact recognition device can be easily lost, and the confidentiality of the non-contact recognition device can be improved.

  Other objects, features and advantages of the present invention will become apparent from the following description of embodiments of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol shows the same or an equivalent part.

  FIG. 1 is a plan view showing a contactless recognition device (RFID) according to a first embodiment of the present invention. As shown in the figure, the RFID 1 has an IC chip 4 mounted on a substrate 2 and an antenna wiring 3 electrically connected to the IC chip 4 around the IC chip 4 so as to surround the IC chip 4. This is provided on the substrate 2.

  The substrate 2 is a flexible substrate, and is formed of a resin material such as polyethylene terephthalate, polyethylene naphthalate, or polyimide. Further, it is possible to use a non-flexible substrate as the substrate 2. In this case, the substrate may be formed of, for example, silicon. In addition, the kind and material of a board | substrate are not specifically limited in this invention.

  The antenna wiring 3 is formed of a conductive metal material such as copper. Specifically, it is formed on the substrate 2 by using a film forming technique such as plating, sputtering or CVD. It is also possible to form the antenna wiring 3 by printing using a conductive material such as conductive ink or conductive paste.

  The IC chip 4 incorporates various circuits for realizing the functions of the conventionally known RFID. Specifically, a semiconductor memory is used as a storage unit for storing information, and an oscillation circuit, a modulation / demodulation circuit, an RF circuit, and a communication circuit for performing proximity wireless communication with a reader / writer or a reader (hereinafter simply referred to as a reader / writer) Each has a control circuit and the like. The power for operation is supplied when the antenna wiring 3 receives the power supplied by the reader / writer. Note that the RFID 1 of the present embodiment may be any of a type capable of both reading and writing information, a write-once type capable of writing only once, or a read-only type capable of only reading. Further, the RFID 1 may have a power supply source and operate regardless of the power supply from the reader / writer.

  When the side on which the IC chip 4 and the antenna wiring 3 are provided is the front surface of the substrate, the strength of the substrate 2 is reduced to the other surface on the back surface of the substrate 2 which is the surface opposite to the front surface. The groove 5 is provided as a further lowered low strength portion. There are a plurality of grooves 5 in the present embodiment, and each of the grooves 5 extends linearly from one end edge of the substrate 2 to the multiple end edges and crosses the antenna wiring 3. However, these grooves 5 are provided so as not to pass through the mounting portion of the IC chip 4. This is to protect the IC chip 4 that is easily broken by bending. By providing the low-strength portion while avoiding the IC chip mounting portion, it is possible to prevent the RFID chip 1 from being damaged due to damage to the IC chip 4 even when an inadvertent force is applied to the RFID 1.

  In addition, slits (cuts) 8 are provided in the substrate 2 at both ends (both ends of the substrate) of each groove 5. If such a slit 8 is formed, when the RFID 1 is discarded, the deformation or breakage of the substrate 2 along the low-strength portion 5 can be promoted, and the antenna wiring 3 can be disconnected more reliably and easily.

  In this embodiment, a memory, a communication circuit, and the like are stored in the IC chip 4 and mounted on the substrate 2. However, instead of the IC chip 4, a circuit having the function of the IC chip 4 is replaced with the substrate 2. It is also possible to form directly on the substrate. In this case, from the viewpoint of preventing the circuit portion of the RFID from being damaged, it is particularly preferable to provide the low-strength portion (groove 5) so as to avoid the circuit portion of the RFID as described above. This is because the low-strength portion of the substrate 2 is more likely to bend than other portions, and thus prevents unintended destruction of the circuit portion due to inadvertent bending. In addition, as described above, the low-strength portion can have various configurations other than the groove.

  FIG. 2 is a cross-sectional view of the RFID 1 shown in FIG. As described above, the RFID substrate 2 is provided with a plurality of grooves 5 as low-strength portions. The depth of each groove 5 is, for example, about 50% of the depth of the substrate 2. If such a groove 5 is provided, for example, when a stress F as shown in FIG. 2 is applied to the substrate 2, the antenna wiring in which the substrate portion on which each groove 5 is formed is locally deformed and intersects the groove 5. 3 breaks. Further, when the substrate 2 is a substrate having no flexibility such as a silicon substrate, the substrate 2 is broken when the stress F is applied to the substrate 2, and as a result, the antenna wiring 3 is disconnected. .

  As described above, in both cases where the substrate 2 is flexible and not, the information reading function of the RFID 1 can be lost by disconnecting the antenna wiring 3 and stored in the memory. Information can be protected. In this embodiment, since a plurality of grooves 5 (low-strength portions) are provided, it is sufficient that the antenna wiring 3 is disconnected at any of the groove portions, as compared with the case where one low-strength portion is provided. Information leakage in the memory can be prevented more reliably.

  FIG. 3 shows a sheet-like product (ticket) according to the second embodiment of the present invention. In this embodiment, a ticket 11 is configured by attaching the RFID 1 according to the first embodiment to a piece of paper. Is.

  As shown in the figure, a ticket 11 includes a paper piece 12 composed of a ticket main body portion 12a and a stub portion 12b integrated via a cut line (so-called perforation) 13, and an RFID 1 attached to the back surface of the paper piece 12. It consists of. The cut line 13 is formed so as to cross the paper piece 12. In addition, as the paper piece 12 itself, the same thing as the normal paper ticket used conventionally can be used. The cut line 13 may be a so-called perforation in which a large number of holes penetrating the paper piece 12 are arranged, or may be a printed broken line or a solid line.

  The RFID 1 is attached to the paper piece 12 so as to straddle the cut line 13, and the RFID 1 is arranged on the paper piece 12 so that the low-strength portion (groove 5) provided in the substrate 2 is parallel to the cut line 13. . Thus, if the paper piece 12 is bent or cut along the cut line 13, the antenna wiring 3 can be disconnected, and the information reading function of the RFID 1 can be easily lost.

  Further, in the ticket 11 of the present embodiment, as shown in FIG. 3, the RFID 1 is attached to the paper piece 12 so that the groove 5 provided in the central portion of the substrate 2 substantially coincides with the cut line 13. With this arrangement, when the paper piece 12 is bent or cut along the cut line 13, the antenna wiring 3 can be more reliably disconnected by the groove 5 in the central portion of the substrate.

  FIG. 4 is a plan view showing a contactless recognition device (RFID) according to the third embodiment of the present invention. As shown in the figure, this RFID 21 is provided with a number of through-holes (through holes) 6 arranged in a straight line instead of the grooves (low-strength portions) 5 in the non-contact recognition device of the first embodiment. In the same manner as the groove 5, the through holes 6 are linearly arranged so as to intersect the antenna wiring 3. These through holes 6 are not provided in the lower surface portions of the antenna wiring 3 and the IC chip 4 so as not to lower the support strength of the antenna wiring 3 and the IC chip 4. The planar shape of the through-hole 6 is circular in the illustrated example, but may be various shapes such as an elongated shape.

  Also in this embodiment, when stress is applied to the substrate 2, the through hole forming portion is locally deformed (when a flexible substrate is used) or the substrate is broken (flexible). In the case where an incompatible substrate is used), the antenna wiring 3 is disconnected, and the function of the RFID 21 can be lost.

  FIG. 5 is a plan view showing a non-contact recognition apparatus (RFID) according to the fourth embodiment of the present invention. As shown in the figure, the RFID 31 is provided with an antenna wiring 3 and an IC chip 4 on a substrate 2. Unlike the first to third embodiments, the RFID 31 is connected to the antenna wiring 3. Is provided outside.

  Similar to the first embodiment, the substrate 2 may be a flexible substrate or a non-flexible substrate. As the antenna wiring 3, a wiring pattern similar to the antenna wiring shown in FIG. 1 is provided on the substrate 2. Similarly to the first embodiment, the IC chip 4 can also be formed directly on the substrate 2 with a circuit having the function instead of the chip.

  The IC chip 4 and the antenna wiring 3 are electrically connected by a connection wiring 32 formed of a conductive material (for example, a metal such as copper). The connection wiring 32 may be formed on the substrate 2 using a film forming technique such as plating, sputtering, or CVD, or may be formed by printing using a conductive ink or the like. Then, the low strength portion 5 is provided on the substrate 2 so as to intersect with the connection wiring 32. The low-strength portion may be a groove as in the first embodiment, may be a substrate through-hole as in the third embodiment, or other configuration.

  In this embodiment, by applying a force to the substrate 2, the low-strength portion 5 is bent or broken, and the connection wiring 32 that connects the antenna wiring 3 and the IC chip 4 is disconnected, so that the function of the RFID 31 is lost. I can do it. Further, in the present embodiment, since the substrate area is increased by adopting a structure in which the IC chip 4 is provided outside the antenna wiring 3, for example, when the RFID 31 of the present embodiment is applied to a sheet-like product and applied, When the sheet-like product is torn and discarded, the function of the RFID 31 can be easily lost.

  The embodiments of the present invention have been described above based on the drawings. However, the present invention is not limited to these embodiments, and various modifications can be made within the scope of the claims. Is obvious.

  For example, in the above-described embodiment, the low-strength portion constituted by the groove or the through-hole is an arrangement pattern in which a plurality of straight lines parallel to each other are arranged. However, for example, the low-strength portion is formed in a lattice shape. May be. Furthermore, not only the groove and the through-hole, but also the strength can be varied depending on the composition of the substance constituting the substrate, and the low-strength portion can be formed.

It is a top view which shows the non-contact recognition apparatus (RFID) which concerns on 1st embodiment of this invention. FIG. 2 is a cross-sectional view of the RFID shown in FIG. It is a top view (ticket back side) showing a sheet-like product (ticket) concerning a second embodiment of the present invention. It is a top view which shows the non-contact recognition apparatus (RFID) which concerns on 3rd embodiment of this invention. It is a top view which shows the non-contact recognition apparatus (RFID) based on 4th embodiment of this invention.

Explanation of symbols

1,21,31 Contactless recognition device (RFID)
2 Substrate 3 Antenna wiring 4 IC chip 5 Groove (low strength part)
6 Substrate through hole (low strength part)
8 Slit
11 Ticket 12 Paper 12a Ticket body 12b Stub 13 Cut line (perforation)
32 Connection wiring

Claims (10)

A non-contact recognition device capable of performing data communication by wireless communication by providing a storage unit capable of storing information, a communication circuit, and an antenna wiring on a substrate,
A non-contact recognition device, wherein a low-strength portion is provided on the substrate so as to cross any of the conductor lines in the non-contact recognition device. The contactless recognition device according to claim 1, wherein the conductor line intersecting with the low-strength portion is the antenna wiring. The non-contact recognition device according to claim 1, wherein the substrate is a flexible substrate. The storage unit and the communication circuit are provided in an IC,
The non-contact recognition apparatus according to claim 1, wherein the low-strength portion does not overlap with the IC. The non-contact recognition device according to any one of claims 1 to 4, wherein the low-strength portion is formed by a groove. The non-contact recognition device according to any one of claims 1 to 5, wherein the low-strength portion is a linear portion formed by arranging a plurality of small holes penetrating the substrate. The contactless recognition device according to any one of claims 1 to 6, wherein a cut is provided in an end portion of the substrate along the low-strength portion.   A sheet-like product, wherein the non-contact recognition device according to claim 1 is arranged on a sheet material. Comprising a breakage induction part capable of inducing breakage of the sheet material,
The sheet-like product according to claim 8, wherein the breakage guide portion is provided so as to pass through an arrangement region of the non-contact recognition device. The sheet-like product according to claim 9, wherein the breakage induction part is a linear part formed by arranging a plurality of small holes penetrating the sheet material.

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