JP2006031239A - Secret information carrier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a secret information carrier with a semiconductor device having RFID function excellent in confidentiality of information, in which read and rewrite of information by a third person is difficult, and an illicit action by the third person can be confirmed. <P>SOLUTION: The secret information carrier 10 comprises a first base material 14 having an RFID device 11, a second base material 16 stuck to the first base material 14 through a first adhesive member 15, a second adhesive member 17 and a third adhesive member 18, which are mutually stacked. The first adhesive member 15 is formed of a hardly releasable or non-releasable laminated film, and the second adhesive member 17 and the third adhesive member 18 are formed of laminated films releasable but not re-applicable after released. A slit 19 extending through the first base material 14, the second adhesive member 15, the second base material 16 and the second adhesive member 17 is provided so as to enclose the RFID device 11. The RFID device 11 has an antenna within the slit 19, and a conductive part connected in parallel to the antenna over the slit 19. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a concealment information carrier provided with a semiconductor device having an RFID function.

  In recent years, with the revision of the Postal Law, a postcard system with confidentiality has been put into practical use and has begun to spread. This friendly postcard system can be used, for example, to fold a postcard on which personal information or various information such as print information and print information is written, and to laminate a laminated body in which two transparent films are pseudo-bonded. The information is concealed through concealment, and the information is concealed and then mailed, and the recipient reads the concealment information by peeling the overlapped adhesive portion again.

  In such a postcard system, the amount of information that can be recorded is limited by the size of the printing surface of the postcard and the size of characters and the like, and a large amount of information cannot be recorded at one time. Thus, in order to record a large amount of information at a time, a postcard with an RFID tag has been devised in which a postcard system as described above is provided with an RFID (Radio Frequency Identification) tag. This postcard with an RFID tag can record a large amount of information on an IC chip constituting the RFID tag, and can additionally record information (for example, Patent Document 1, Patent Document 2, Patent Document) 3).

However, such a conventional postcard with an RFID tag can record a large amount of information on an IC chip, but is provided with means for preventing the information from being read or rewritten by a third party. It wasn't. Therefore, it is possible for a third party to read or rewrite information recorded on the IC chip inadvertently or intentionally by the time it arrives at the recipient's hand from the sender. Further, even if a conventional postcard with an RFID tag performs an illegal act such as reading or rewriting of information by a third party, it cannot be confirmed at first glance. Thus, the conventional postcard with an RFID tag has a problem that the confidentiality of information cannot be maintained.
JP-A-11-126238 JP 2001-126043 A JP 2003-141492 A

  The present invention has been made in view of the above circumstances, and reading and rewriting of information by a third party is not easy, it is possible to confirm the presence or absence of fraud by a third party, and excellent information confidentiality. Another object of the present invention is to provide a concealment information carrier including a semiconductor device having an RFID function.

  In order to solve the above problems, the present invention provides a base material A including a semiconductor device having an RFID function, and a base material B having one surface attached to the base material A through an adhesive member α, A concealment information carrier formed by stacking adhesive members β arranged on the other surface of the base material B, wherein the adhesive member α is difficult or impossible to peel, and the adhesive member β is peelable. Yes, it is made of a laminated film that cannot be reattached after peeling, and the base material B that constitutes the base material A, the adhesive member α, the base material B, and the adhesive member β so as to enclose the semiconductor device; A means for penetrating the film on the side in contact with it and making it separable is provided, and the semiconductor device has an antenna inside surrounded by the means for making it separable, and further making the separable Connected in parallel with the antenna beyond the means Providing hiding information carrier having means for inhibiting the function of the antenna.

  In the concealment information carrier having the above configuration, from the concealment information carrier, from a part of the base material A, the adhesive member α, the base material B, and the adhesive member β along the means for enabling separation of the semiconductor device having the RFID function. By separating the stacked body, the IC that is connected to the IC chip in parallel with the antenna beyond the separable means and the function of obstructing the function of the antenna does not function, so that the IC constituting the semiconductor device having the RFID function Information recorded on the chip can be read or rewritten. In addition, since the adhesive member α is difficult to peel or cannot be peeled, not only the presence of a semiconductor device having an RFID function cannot be confirmed from the outside, but also damage to the semiconductor device having an RFID function can be prevented. In addition, since the adhesive member β can be peeled off even after sticking and cannot be sticked again after peeling, it can be confirmed at a glance when information is read or rewritten. . On the other hand, by peeling off the adhesive member β, it is possible to immediately read or rewrite information recorded on the IC chip constituting the semiconductor device having the RFID function.

  According to the concealment information carrier of the present invention, the adhesive member α is difficult to peel or cannot be peeled, the adhesive member β is peelable and cannot be reattached after peeling, and includes the semiconductor device. And a means for penetrating the film on the side in contact with the base material B constituting the base material A, the adhesive member α, the base material B, and the adhesive member β, and making them separable, and the semiconductor device Since it has an antenna on the inner side surrounded by the means for enabling separation, and further has means for preventing the function of the antenna from being connected in parallel with the antenna beyond the means for enabling separation, it is possible for the sender to the recipient. In the meantime, it is possible to prevent unauthorized actions such as reading or rewriting of print information by a third party and to conceal the information recorded on the IC chip that constitutes the semiconductor device having the RFID function. It conceals both print data and can keep the confidentiality of the information. In addition, the adhesive member is peeled off so as to see the print information, so that the semiconductor device having the RFID function can be used without being aware of it. Furthermore, since the concealment information carrier in which the card having the RFID function and the sending body are integrated can be realized, when sending the card having the RFID function to the recipient, the information attached to the card having the RFID function is concealed. You can send it in the state.

  The concealment information carrier embodying the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic sectional view showing an embodiment of a concealment information carrier according to the present invention. FIG. 2 is a schematic cross-sectional view showing an embodiment of the concealment information carrier according to the present invention and taken along line AA in FIG.
1 and 2, reference numeral 10 is a concealment information carrier, 11 is a semiconductor device having an RFID function (hereinafter abbreviated as “RFID device”), 12 is an IC chip, 13 is an antenna, and 14 is a first base. 15 is a first adhesive member, 16 is a second substrate, 17 is a second adhesive member, 18 is a third adhesive member, 19 is a slit, and 20 is a card having an RFID function (hereinafter referred to as “RFID”). (Abbreviated as “card”) and 21 indicate conductive portions.

  The concealment information carrier 10 of this embodiment includes an RFID device 11, a first base member 14 provided with the RFID device 11, a first adhesive member 15, and a first adhesive member 15. The second adhesive member 17 disposed on the surface opposite to the surface facing the first substrate 14 of the second substrate 16 and the second substrate 16 attached to the substrate 14. And a third adhesive member 18 that is overlapped and adhered to the second adhesive member 17. Further, the RFID device 11 is schematically configured from an IC chip 12 and an antenna 13 connected thereto.

  In this concealment information carrier 10, the first adhesive member 15 is difficult to peel or cannot be peeled off, and the second adhesive member 17 and the third adhesive member 18 are peelable, and cannot be reattached after peeling. It is a good film.

  In the concealment information carrier 10, the slit 19 penetrating the first base material 14, the first adhesive member 15, the second base material 16, and the second adhesive member 17 so as to enclose the RFID device 11. A laminated body composed of the first base material 14, the first adhesive member 15, the second base material 16, and the second adhesive member 17 can be separated along the slit 19. It is like that. Then, the laminated body composed of the first base material 14, the first adhesive member 15, the second base material 16, and the second adhesive member 17 is separated from the concealment information carrier 10 along the slit 19. Thus, this laminated body functions as the RFID card 20.

  Further, as shown in FIG. 2, in the concealment information carrier 10, the RFID device 11 has an antenna 13 on the inner side surrounded by the slit 19, and the RFID device 11 passes the slit 19 in parallel with the antenna 13. And a conductive portion 21 made of a conductor connected to the IC chip 12. That is, in the state where the RFID card 20 is integrated with the concealment information carrier 10, the slit 19 is provided to the vicinity of the conductive portion 21, but the slit 19 is not provided in the conductive portion 21. The unit 21 forms a continuous circuit.

  The RFID device 11 is not particularly limited as long as it has a non-contact automatic recognition function using electromagnetic waves, and any device can be applied. As the RFID device 11, for example, an IC chip mounted on a coil-shaped, pole-shaped, or loop-shaped antenna, or an IC chip 12 and an antenna 13 are connected and integrated as shown in FIG. And those having a communication function such as an antenna formed on an IC chip. Specifically, a minute RFID chip capable of communication in the entire frequency band from 13.56 MHz to 2.45 GHz is exemplified.

  The first substrate 14 is not particularly limited as long as it can print characters, patterns, or images, and any material can be applied, and examples thereof include paper and resin materials.

  The first adhesive member 15 is formed of an adhesive that is difficult to peel or cannot be peeled after sticking, as compared with a second adhesive member 17 and a third adhesive member 18 described later. As such an adhesive, an adhesive having a peeling force of about 220 gf / 25 mm to 340 gf / 25 mm is used.

  The second substrate 16 is not particularly limited as long as it can print characters, patterns, or images, and any material can be applied, and examples thereof include paper and resin materials.

 The second adhesive member 17 and the third adhesive member 18 are formed of a thermoplastic resin film that can be peeled even after sticking, cannot be stuck again after peeling, and can be heat-sealed. As such a heat-sealable thermoplastic resin film, a material having a peeling force of about 110 gf / 25 mm to 170 gf / 25 mm is used.

  Examples of such a thermoplastic resin film include polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-methacrylic acid copolymer, ethylene-methacrylic acid ester copolymer, ethylene-acrylic acid copolymer, ethylene. -Films composed of acrylic acid ester copolymers and cross-linked products of these metals can be mentioned, and among these, transparent ones are desirable.

  Examples of the conductor forming the conductive portion 21 include a conductive metal foil, a metal plate, a metal net, and a conductive film made of a conductive paste. The metal forming such a conductor is not particularly limited, and examples thereof include copper (Cu) and silver (Ag).

 In the concealment information carrier 10 of this embodiment, a unit that enables separation of the laminate composed of the first base material 14, the first adhesive member 15, the second base material 16, and the second adhesive member 17 is possible. As an example, the slit 19 provided so as to penetrate these is exemplified, but the concealment information carrier of the present invention is not limited to this. In the concealment information carrier of the present invention, the means for making it possible to separate the laminate composed of a part of the base material A, the adhesive member α, the base material B, and the adhesive member β is a notch excluding the conductive portion, It may be a full cut or a perforation line provided so as to enclose a semiconductor device having an RFID function.

 In the concealment information carrier 10, the conductive portion 21 is illustrated as a means that is connected in parallel with the antenna 13 and obstructs the function of the antenna. However, the concealment information carrier of the present invention is not limited to this. In the concealed information carrier of the present invention, the means for inhibiting the function of the antenna may be a capacitor, a resistor, or the like.

 In addition, the concealment information carrier 10 includes a second substrate 16 on a surface opposite to the surface facing the first substrate 14 or a third adhesive member 18 of the second adhesive member 17. Printing information may be provided on the surface to be bonded. This print information is printed on the above-mentioned surface by any character or pattern printed by a thermal transfer printer, inkjet printer, microdrive printer, sublimation thermal transfer printer, thermoautochrome printer, etc. Is an image. In this way, printing is performed on the surface of the second substrate 16 opposite to the surface facing the first substrate 14 or on the surface of the second adhesive member 17 that is bonded to the third adhesive member 18. By providing the information, not only cannot the print information be read by a third party between the sender and the recipient, but also the deterioration of the print information can be prevented.

 In the concealment information carrier 10 of this embodiment, the RFID device 11 has a conductive portion 21 made of a conductor connected to the IC chip 12 in parallel with the antenna 13 beyond the slit 19. Is integrated with the concealment information carrier 10, information recorded on the IC chip 12 constituting the RFID device 11 cannot be read or rewritten. Therefore, in order to read or rewrite information recorded on the IC chip 12, the first base material 14, the first adhesive member 15, and the second are disposed along the slit 19 from the concealment information carrier 10. By separating the laminate composed of the base material 16 and the second adhesive member 17, the conductive portion 21 constituting the circuit must be cut. In addition, since the slit 19 is provided to the vicinity of the electroconductive part 21, the electroconductive part 21 can be easily cut | disconnected by isolate | separating said laminated body from the concealment information carrier 10. FIG. In addition, since the first adhesive member 15 is difficult to peel or cannot be peeled, not only the presence of the RFID device 11 cannot be confirmed from the outside, but also damage to the RFID device 11 can be prevented. Furthermore, since the second adhesive member 17 and the third adhesive member 18 can be peeled even after being stuck and cannot be stuck again after peeling, when information is read or rewritten, At first glance it can be confirmed. On the other hand, by peeling the second adhesive member 17 and the third adhesive member 18, the information recorded in the RFID device 11 can be read or rewritten immediately. In addition, when the second adhesive member 17 is made of a transparent thermoplastic resin film, the RFID card 20 separated from the concealment information carrier 10 faces the first substrate 14 of the second substrate 16. The surface opposite to the surface has a glossy surface covered with the second adhesive member 17. Therefore, when printing information is provided on the surface opposite to the surface facing the first substrate 14 of the second substrate 16, the printing information can be protected and looks good.

  As described above, if the RFID card 20 can be separated from the concealment information carrier 10, when the RFID card 20 is sent to a customer or the like, the RFID card 20 is integrated with the sending body to form the concealment information carrier 10. You can also. Therefore, by manufacturing the concealment information carrier 10 including the RFID card 20 and the sending body, it is possible to prevent an error in collating the RFID card 20 and the sending body. In addition, information attached to the RFID card 20 can be concealed, personal information written on the surface of the RFID card 20 can be concealed, and electronic data written in the RFID device 11 can be concealed.

  The concealment information carrier of the present invention can also be applied to cases where an admission ticket to an event venue that requires pre-registration is mailed to the home, or where voting tickets are delivered to the home.

It is a schematic plan view which shows one Embodiment of the concealment information carrier which concerns on this invention. FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. 1, showing an embodiment of the concealment information carrier according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Concealment information carrier, 11 ... RFID apparatus, 12 ... IC chip, 13 ... Antenna, 14 ... First base material, 15 ... First adhesive member, 16 ... 2nd base material, 17 ... 2nd adhesive member, 18 ... 3rd adhesive member, 19 ... Slit, 20 ... RFID card, 21 ... Conductive part.

Claims (1)

Arranged on a base material A provided with a semiconductor device having an RFID function, a base material B having one surface attached to the base material A through an adhesive member α, and the other surface of the base material B A concealment information carrier formed by stacking adhesive members β,
The adhesive member α is difficult to peel or not peelable, the adhesive member β is peelable, and is made of a laminated film that cannot be reattached after peeling, and the base material A so as to enclose the semiconductor device, The adhesive member α, the base material B, and a film on the side in contact with the base material B constituting the adhesive member β are provided so as to be separated from each other, and the semiconductor device is provided with the separation A concealment characterized in that it has an antenna on the inner side surrounded by the enabling means, and further has means for blocking the function of the antenna connected in parallel with the antenna beyond the separating means Information carrier.

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