JP2008015834A - Noncontact ic tag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To recover an IC chips and to make the IC tag invalidated, after use. <P>SOLUTION: The device is a noncontact IC tag, having (a) the IC inlet that has a surface circuit having a plane coil and a facing electrode formed in the base material; the IC chip mounted in the facing electrode, (b) a closed notched perforated line formed in circumference of the IC chip penetrating the base material and a surface circuit, (c) a first adhesion part formed in a region, including the closed notched perforated line of the base material surface and a second adhesion part formed covering the base material surface, excluding the region, (d) a surface protection layer adhered covering the first and the second adhesion parts, (e) a third adhesion part formed in a side opposite to the IC chip mounting side of the base material, excluding the area corresponding to the region that includes the closed notched perforated line, and (f) the adhesive power of the first and the third adhesion parts is higher than three times of the adhesive power of the second adhesive part in it. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a non-contact IC tag used for personal authentication, merchandise management, logistics management, and the like. More specifically, the present invention relates to a non-contact IC tag that can destroy the function of the IC tag circuit after using the non-contact IC tag, and can recover the IC on which data is recorded.

  In recent years, non-contact IC tags (hereinafter abbreviated as IC tags) that are attached to managed persons and products (hereinafter referred to as adherends) and manage distribution and the like of these managed objects have become widespread. This IC tag can store data in a built-in IC chip, and can exchange data to be managed with the interrogator by communicating with the interrogator without contact.

  IC tags are used in various fields, such as commuter pass tickets for various transportation facilities, entry / exit management of people and goods in companies, etc., inventory management of goods, and logistics management. Various types of IC tags are used depending on these fields of use.

  For example, disposable IC tags are attached to products and lined up in stores, and when the products are sold, the data stored in the IC chip is read by the interrogator, whereby the role of the IC tag is terminated.

  Since this disposable IC tag remains as it is, the data stored in the IC chip remains, so management of the data stored in the IC chip after use of the IC tag is important. For example, it is conceivable that an IC tag once attached to a product and used properly is removed from the product, data stored in the IC chip is read, and this data is used for unauthorized use. It is also possible to tamper with the stored data of the discarded IC tag and use it for unauthorized use.

  In order to prevent such unauthorized use, in the case of a resonance tag, a method for disabling the resonance tag by generating an induced current in the resonance circuit of the resonance tag using an interrogator having a function of generating a high output electric field is disclosed. (Patent Document 1). This revocation method needs to have a function of generating a high output electric field in the interrogator. Furthermore, according to this method, the revocation process is unstable and the resonance performance of the resonance tag may be restored after the revocation process. Furthermore, according to this method, there is a problem that it is not possible to visually confirm that it has expired.

In addition to the above-mentioned revocation method, a non-contact data carrier label is formed when a non-contact data carrier label is formed on a base material of a non-contact data carrier label and the non-contact data carrier label attached to the product is peeled off and collected. There has been proposed a method of making the circuit expired at the time of recovery by preliminarily configuring the circuit to be destroyed (Patent Document 2). In this proposal, circuit breakage occurs due to the difference in peel force, so that stable control of peel force is required, and a process for forming a plurality of peel layers having different peel forces is required, which complicates the manufacturing process. There's a problem.
JP 2002-185281 A (paragraph number 0002) JP 2000-57292 A (Claim 1)

  While various studies have been made by the present inventors to solve the above problem, a notched broken line (perforation) is provided in the antenna circuit constituting the IC tag, and the antenna circuit is arranged along the notched broken line. It was conceived that the IC tag could be invalidated by cutting, and patent applications were filed first (Japanese Patent Application Nos. 2004-195949 and 2004-315938).

  The IC tags according to these inventions have the advantage that a revoked state can be confirmed visually without requiring a special device for revocation. However, since these IC tags have a cut-out broken line formed, if attention is paid to this part, there is a possibility that the IC tag can be peeled off from the product etc. without causing it to expire. In this case, a malicious person intentionally There is a possibility that revocation can be avoided.

  Furthermore, although the circuit of the IC tag is destroyed, the management data in the IC chip is not destroyed. Therefore, there is a possibility that the IC tag may be misused by some method.

  As a result of various studies to solve the above-mentioned problems, the present inventors have determined that the adhesive force on the side to be applied to the product in the region including the closed notch broken line is 1 / By setting the number to 3 or less, the IC tag circuit can be destroyed and the IC chip can be recovered from the adherend when the IC tag is removed from the adherend and recovered, and the IC chip can be recovered from the adherend. I came up with an IC tag that can avoid misuse of the data recorded on the other person. Furthermore, it has been found that the above operation can be performed more effectively when a peeling tab is formed on an IC tag.

  The present invention has been completed on the basis of the above knowledge, and the object of the present invention is that it can be expired without using a special device, and an IC chip can be recovered by collecting an IC chip mounted on an IC tag. An object of the present invention is to provide an IC tag that can prevent data in a chip from passing on to another person.

  The present invention which achieves the above object is described below.

[1] (a) an antenna circuit having a base material, a planar coil circuit portion formed on the base material, and a surface circuit including at least a pair of counter electrodes respectively connected to the planar coil circuit portion; connected to the counter electrode An IC inlet having an IC chip mounted thereon;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) IC of the base material except for the first adhesive portion formed in the region including the closed notched broken line and the region including the closed notched broken line on the substrate surface on which the IC chip is mounted. A second adhesive portion formed to cover the substrate surface on which the chip is mounted;
(D) a surface protective layer that covers the first adhesive part and the second adhesive part and is adhered to the first adhesive part and the second adhesive part;
(E) a third adhesive portion formed on the surface opposite to the IC chip mounting surface of the substrate, excluding a region corresponding to a region including the closed cut-out broken line;
Have
(F) The adhesive force of the first adhesive part and the third adhesive part is at least three times the adhesive force of the second adhesive part.
A non-contact IC tag having a void portion where no adhesive is present in a region including a closed notched broken line on a surface opposite to an IC chip mounting surface of the substrate.

[2] (a) an antenna circuit having a base material, a planar coil circuit portion formed on the base material, and a surface circuit including at least a pair of counter electrodes respectively connected to the planar coil circuit portion; connected to the counter electrode An IC inlet having an IC chip mounted thereon;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) IC of the base material except for the first adhesive portion formed in the region including the closed notched broken line and the region including the closed notched broken line on the substrate surface on which the IC chip is mounted. A second adhesive portion formed to cover the substrate surface on which the chip is mounted;
(D) a surface protective layer that covers the first adhesive part and the second adhesive part and is adhered to the first adhesive part and the second adhesive part;
(E) a third adhesive portion formed on the surface opposite to the IC chip mounting surface of the substrate, excluding a region corresponding to a region including the closed cut-out broken line;
Have
(F) The adhesive strength of the first adhesive portion and the third adhesive portion is three times or more the adhesive strength of the second adhesive portion, and (g) the opposite surface of the substrate to the IC chip mounting surface is closed. A non-contact IC tag, wherein a fourth adhesive portion having an adhesive strength equal to or less than 1/3 of the adhesive strength of the first adhesive portion and the third adhesive portion is formed in a region including the notched broken line.

[3] (a) an antenna circuit having a base material, a planar coil circuit portion formed on the base material, and a surface circuit including at least a pair of counter electrodes respectively connected to the planar coil circuit portion; connected to the counter electrode An IC inlet having an IC chip mounted thereon;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) Corresponding to a fifth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and a region including the closed notched broken line A sixth adhesive part formed so as to cover the opposite surface of the substrate surface on which the IC chip of the substrate is mounted except for the area to be formed;
(D) a surface protective layer that covers the fifth adhesive portion and the sixth adhesive portion and is adhered to the fifth adhesive portion and the sixth adhesive portion;
(E) a seventh adhesive portion formed on the base material surface on which the IC chip of the base material is mounted except for the region including the closed notched broken line;
Have
(F) The adhesive force of the fifth adhesive part and the seventh adhesive part is at least three times the adhesive force of the sixth adhesive part.
A non-contact IC tag having a void portion in which an adhesive is not present in a region including a closed cut-out broken line on an IC chip mounting surface of the substrate.

[4] (a) an antenna circuit having a base material, a planar coil circuit portion formed on the base material, and a surface circuit including at least a pair of counter electrodes respectively connected to the planar coil circuit portion; connected to the counter electrode An IC inlet having an IC chip mounted thereon;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) Corresponding to a fifth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and a region including the closed notched broken line A sixth adhesive part formed so as to cover the opposite surface of the substrate surface on which the IC chip of the substrate is mounted except for the area to be formed;
(D) a surface protective layer that covers the fifth adhesive portion and the sixth adhesive portion and is adhered to the fifth adhesive portion and the sixth adhesive portion;
(E) a seventh adhesive portion formed on the base material surface on which the IC chip of the base material is mounted except for the region including the closed notched broken line;
Have
(F) The adhesive strength of the fifth adhesive portion and the seventh adhesive portion is three times or more the adhesive strength of the sixth adhesive portion, and (g) a broken notch broken line on the IC chip mounting surface of the substrate. A non-contact IC tag, wherein an eighth adhesive portion having an adhesive strength of 1/3 or less of the adhesive strength of the fifth adhesive portion and the seventh adhesive portion is formed in a region including

[5] (a) an antenna circuit having a base material, a planar coil circuit portion formed on the base material, and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit portion; and connected to the counter electrode An IC inlet having an IC chip mounted thereon;
(B) a ninth adhesive part formed so as to cover the substrate surface on which the IC chip is mounted; an intermediate base material adhered to the ninth adhesive part;
(C) a closed notch broken line formed around the IC chip through the base material, the surface circuit and the intermediate base material;
(D) Corresponds to the tenth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and the region including the closed notched broken line An eleventh adhesive portion formed so as to cover the base material surface opposite to the base material surface on which the IC chip of the base material is mounted except for the area to be formed;
(E) a surface protective layer that covers the tenth adhesive part and the eleventh adhesive part and is adhered to the tenth adhesive part and the eleventh adhesive part;
(F) The 12th adhesive part formed in the surface opposite to the 9th adhesion part adhesion side of the above-mentioned intermediate base material except the field containing the above-mentioned closed notch broken line, and the 9th adhesion part pasting of the above-mentioned intermediate base material A thirteenth adhesive portion formed in a region corresponding to a region including the closed notched broken line on the opposite surface to the wearing surface;
(H) The adhesive strength of the ninth adhesive portion, the tenth adhesive portion, and the twelfth adhesive portion is three times or more the adhesive strength of the eleventh adhesive portion and the thirteenth adhesive portion, respectively.
A non-contact IC tag characterized by the above.

  [6] The non-conducting device according to any one of [1] to [5], wherein a notched broken line forming terminal is formed in each lead portion connecting the planar coil circuit portion and each of the at least one pair of counter electrodes. Contact IC tag.

  [7] The non-contact IC tag according to any one of [1] to [6], wherein the surface protective layer is opaque.

  [8] The non-contact IC tag according to any one of [1] to [7], which includes a tab protruding outward from the surface protective layer at a peripheral portion of the surface protective layer.

  [9] The non-contact IC tag according to any one of [1] to [8], wherein a release material is attached to a surface opposite to the surface of the non-contact IC tag to which the surface protective layer is attached.

  Since the IC tag of the present invention has a cut-out broken line around the IC chip of the IC inlet on which the IC chip is mounted, the IC tag can be destroyed and expired after the IC tag is used. Furthermore, on the front and back of the base material, the adhesive strength on the side to be applied to the product in the region including the notched broken line is 1/3 or less of the adhesive strength on the opposite side, or is eliminated. For this reason, the IC chip can be easily collected when the IC tag is peeled off from the product after use. In this case, when an opaque protective layer is used as the surface protective layer, it is practically difficult to peel off the IC tag from the product or the like without losing it because the portion where the broken line is formed can be concealed.

  With regard to the expiration of the IC tag of the present invention, it is possible to visually confirm the absence of the region cut along the broken broken line, so that the presence or absence of the expiration can be easily and reliably confirmed.

  When a tab is formed on the surface protective layer, the IC tag can be more easily destroyed by starting peeling from the tab portion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First form)
FIG. 1 is a plan view showing an example of an IC inlet constituting the non-contact IC tag of the present invention.

  In FIG. 1, 100 is an IC inlet and 2 is a base material. This base material 2 functions as a support for holding a surface circuit, an IC chip and the like which will be described later.

  As the substrate 2, paper such as high-quality paper and coated paper, a synthetic resin film, and the like are preferable. The resin material constituting the synthetic resin film is not particularly limited. Polyester such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polynaphthalene terephthalate, polyvinyl acetate, polybutene, polyacrylic acid ester, polymethacrylic acid Examples include ester, polyacrylonitrile, polyimide, polycarbonate, polyamide, ethylene-vinyl acetate copolymer, polyvinyl acetal, acrylonitrile-butadiene-styrene copolymer, and the like. 10-200 micrometers is preferable and, as for the thickness of the base material 2, 25-125 micrometers is especially preferable.

  An external extraction electrode 4 is formed on one corner side of the substrate 2. Reference numeral 6 denotes a planar coil circuit portion which is formed in a rectangular spiral shape on one surface of the substrate 2, and the external extraction electrode 4 and the planar coil circuit portion 6 are formed apart from each other. One end 17 inside the planar coil circuit unit 6 is connected to the internal extraction electrode 8.

  An insulating layer 10 is formed in the vicinity of the external extraction electrode 4 so as to cover the upper surface of the planar coil circuit portion 6. The internal extraction electrode 8 inside the planar coil circuit portion 6 and the external extraction electrode 4 are electrically connected by a jumper 12 formed on the upper surface of the insulating layer 10. However, the jumper 12 is insulated from the planar coil circuit unit 6 by the insulating layer 10.

  Reference numerals 16 and 18 denote a pair of counter electrodes formed on the outside of the planar coil circuit portion 6 at a predetermined distance from each other. The external lead electrode 4 and one counter electrode 16 are connected by one lead portion 14. Has been.

  The other counter electrode 18 and the other end 19 outside the planar coil circuit portion 6 are connected by the other lead portion 20.

  The lead portions 14 and 20 are formed with a pair of notched broken line forming terminals 24 and 26 formed in a substantially fan shape.

  FIG. 2 is a plan view showing an example of an antenna circuit before an IC chip is mounted on the IC inlet shown in FIG.

  As shown in FIG. 2, the width P of the pair of notched broken line forming terminals 24, 26 is larger than the line width of the lead portions 14, 20, and preferably 1 to 20 mm. Further, the length Q is preferably 1 mm or more, particularly 1 to 20 mm in consideration of processing accuracy and the like. The shape is preferably formed to have a dimension that can include at least a circle having a diameter of 1 mm. These notched broken line forming terminals 24 and 26 are electrically connected to the pair of lead portions 14 and 20 so as to surround an IC chip 22 described later.

  Here, in FIG. 2, the extraction electrodes 4 and 8, the planar coil circuit portion 6, one counter electrode 16, the other counter electrode 18, the jumper 12, the insulating layer 10, the lead portions 14 and 20, and a notched broken line forming terminal 24. , 26 constitute a surface circuit.

  Furthermore, what consists of a surface circuit and the base material 2 is named the antenna circuit 110 generically. However, the notched broken line forming terminals 24 and 26 may not be included in the surface circuit and the antenna circuit 110.

  The antenna circuit 110 can be manufactured by forming a surface circuit on the base material 2 using a conductive metal such as gold, silver, copper, or aluminum, or a conductive paste such as silver paste or conductive ink. As a method for forming a surface circuit, a conventional electronic method such as a method for producing a surface circuit by a screen printing method using a conductive paste or conductive ink, or a method for forming a surface circuit pattern by etching using a resist or the like is used. Various methods for circuit manufacture can be arbitrarily adopted.

  For example, an unnecessary copper foil is obtained by printing a resist pattern for forming a surface circuit by a screen printing method on a copper foil surface of a laminate film obtained by bonding a copper foil and a polyethylene terephthalate film, and then etching the copper foil portion. The method of removing the part and forming the planar coil circuit unit 6 is mentioned. Further, a part of the antenna circuit 110, for example, the notched broken line forming terminals 24 and 26, is not formed in advance by etching, and these can be formed with silver paste or the like after the planar coil circuit portion 6 is formed.

  The thickness of the planar coil circuit portion 6, the counter electrodes 16, 18, the extraction electrodes 4, 8, the notched broken line forming terminals 24, 26, etc. is preferably 1 to 100 μm, particularly preferably 3 to 50 μm.

  As the insulating layer 10, an insulating resin such as an acrylic resin, a urethane resin, or an acrylic urethane resin can be used. The insulating layer 10 can be formed by screen printing so as to cover the upper surface of the planar coil circuit portion 6 between the external extraction electrode 4 and the internal extraction electrode 8. The insulating layer 10 only needs to have a thickness that allows the planar coil circuit portion 6 and the upper surface of the insulating layer 10 to be electrically insulated, and is not particularly limited, but is preferably 1 to 100 μm, particularly preferably 3 to 50 μm.

  The jumper 12 can be formed using a conductive paste such as a silver paste or a conductive ink. The jumper 12 can be formed on the upper surfaces of the external extraction electrode 4, the internal extraction electrode 8, and the insulating layer 10 using a screen printing method. The jumper 12 only needs to be able to electrically connect the external extraction electrode 4 and the internal extraction electrode 8, and its shape and thickness are not particularly limited. For example, a rectangular linear shape or a shape obtained by bending a rectangle as shown in FIG. 1 at a right angle may be used. The thickness is preferably 1 to 100 μm, particularly preferably 3 to 50 μm.

  As shown in FIG. 1, an IC chip 22 is mounted on the opposing electrodes 16 and 18, and the IC chip 22 and the opposing electrodes 16 and 18 are electrically connected.

  When mounting the IC chip 22, for example, an adhesive material such as anisotropic conductive adhesive (ACP) is applied between the opposing electrodes 16, 18, and the IC chip is provided with wire bumps, plating bumps, etc. , 18 between. As a method for fixing the IC chip, for example, thermocompression bonding can be mentioned.

  In FIG. 1, reference numeral 28 denotes a closed notched broken line (perforation), which is formed in a substantially circular shape that passes through the pair of notched broken line forming terminals 24 and 26 and surrounds the IC chip 22. . The closed notched broken line 28 forms a closed region 30 that is separated from other regions of the IC inlet 100.

  The notch cutting portion of the notched broken line 28 is formed through the notched broken line forming terminals 24 and 26 and the substrate 2.

  The notched broken line 28 is preferably formed by using a punching blade with perforations at the same time in the process of cutting each IC inlet 100 into each inlet size in the mass production process.

    FIG. 3 is a partially enlarged view of the notched broken line 28. The notched broken line 28 includes a notched cut portion 32 (cut portion length X) and a non-cut portion 34 (non-cut portion length Y).

  The ratio of the non-cut portion length Y to the cut portion length X of the cut broken line 28 is preferably 1: 1 to 1:20, and more preferably 1: 2 to 1:15.

  The non-cut portion length Y of the notched broken line 28 is preferably 0.08 to 1.5 mm, more preferably 0.2 to 1 mm, and still more preferably 0.4 to 0.8 mm. When the non-cut portion length Y is less than 0.08 mm, it is difficult to form the non-cut portion 34 accurately, and the non-cut portion is easily broken. When the non-cut portion length Y exceeds 1.5 mm, the IC tag circuit may not easily be destroyed during the IC tag invalidation operation described later.

  As shown in FIG. 1, the lengths a and b of the notch broken line forming terminals 24 and 26 through which the notched broken line passes are each preferably 1 mm or more, and more preferably 1 to 20 mm.

  The above configuration may be variously changed without departing from the gist of the present invention. For example, the shape and size of the notched broken line forming terminals 24 and 26 are not particularly limited. The shape is arbitrary, such as a circle, a rectangle, a triangle, and an indefinite shape.

  The notched broken line 28 is not necessarily a curved line, and the closed region 30 may be configured in a rectangular shape with a straight line shown in FIG.

  Further, in the above embodiment, the notched broken line forming terminals 24 and 26 are formed and the notched broken line forming terminals 24 and 26 are passed through the notched broken line 28, but the present invention is not limited to this. Without forming the notched broken line forming terminals 24 and 26, as shown in FIG. 5, the notched broken line 28 simply passes through any part of the surface circuit (in this figure, the lead parts 14 and 20). Thus, a closed region including the IC chip 22 may be formed. However, in this case, since the notched broken line 28 may cut the surface circuit, it is preferable to form the notched broken line forming terminals 24 and 26 in consideration of the processing accuracy of the notched broken line. In FIG. 5, reference numeral 180 denotes an antenna circuit, and other configurations are the same as those in FIG. 2, and therefore, the same reference numerals are assigned to the same portions as those in FIG.

  Further, the thickness, shape, and the like of the notched broken line are not particularly limited, and may be, for example, a series of holes having a predetermined radius (for example, the shape of a punching hole in a stamp cut line).

  FIG. 6 is a side sectional view of the IC tag 120 manufactured using the IC inlet, and shows a section taken along the line AA of FIG.

  In FIG. 6, on one surface 2A of the substrate 2 (IC chip mounting surface, upper surface in FIG. 6), the planar coil circuit portion 6, the IC chip 22, the counter electrode 16, the notched broken line forming terminal 24, A substantially circular closed cut-out broken line 28 formed around the internal extraction electrode 8, the insulating layer 10, the jumper 12, and the IC chip 22 is formed. A region 29 including a closed notched broken line is formed outside the closed region 30 formed by the closed notched broken line 28. There is no particular limitation on the size and shape of the region 29 including the closed notched broken line, but it is sufficient that the closed region 30 formed by at least the closed notched broken line 28 is completely included and wider. The shape of the closed region 30 can be an arbitrary shape such as a circle, an ellipse, a quadrangle, a rectangle, or a rhombus.

  The region 29 including the closed notched broken line covers the upper surfaces of the IC chip 22, the counter electrodes 16 and 18 (not shown), and the notched broken line forming terminals 24 and 26 (not shown). Part S1 is formed. Furthermore, on the base material surface of the base material 2 on which the IC chip 22 is mounted, excluding the region 29 including the notched broken line (in this figure, one surface 2A of the base material) A second adhesive portion S2 is formed surrounding the first adhesive portion S1.

  A surface protective layer 54 is laminated on the first adhesive portion S1 and the second adhesive portion S2.

  Any sheet may be used as the surface protective layer 54, for example, films made of various resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene, polypropylene, polyarylate, polyethylene laminated paper, polypropylene laminated paper, clay Various paper materials such as coated paper, resin-coated paper, and glassine paper can be used. The thickness of the surface protective layer is preferably 10 to 200 μm.

  The surface protective layer 54 is preferably opaque. By using an opaque base material as the surface protective layer 54, the formation part of the notch broken line 28 can be concealed.

  A third adhesive portion S3 is formed on the opposite surface (the other surface 2B of the substrate) of the substrate surface (the one surface 2A of the substrate) on which the IC chip 22 is mounted. However, the third adhesive portion S3 is not formed in the region 29b corresponding to the region 29 including the closed notch broken line on the opposite surface of the substrate 2 to the IC chip mounting surface, and the gap portion 48 is formed. Has been.

  Here, the adhesive strength between the first adhesive portion S1 and the third adhesive portion S3 is three times or more the adhesive strength of the second adhesive portion S2, and preferably five times or more the adhesive strength of the second adhesive portion S2. When the adhesive force between the first adhesive part S1 and the third adhesive part S3 is less than three times the adhesive force of the second adhesive part S2, the IC chip is recovered when the IC chip is recovered from the adherend as will be described later. May remain on the surface of the adherend or the antenna circuit may be completely broken.

  Here, the adhesive strength of each adhesive part is a value measured according to JIS Z0237. Specifically, the adhesive of each adhesive part was applied to a polyethylene terephthalate film (thickness 50 μm) with a predetermined coating thickness. It is the value which measured the adhesive sheet based on JISZ0237.

  The adhesive force can be adjusted by selecting the material of the adhesive, adjusting the thickness of the adhesive part, and the like.

  As the adhesive used for the first adhesive part S1, the second adhesive part S2, and the third adhesive part S3, known adhesives can be used without limitation. Specific examples include acrylic adhesives, urethane adhesives, natural rubber and synthetic rubber adhesives, silicone resin adhesives, polyolefin adhesives, polyester adhesives, ethylene-vinyl acetate adhesives, etc. it can.

  As thickness of 1st adhesion part S1, 2nd adhesion part S2, and 3rd adhesion part S3, 5-200 micrometers is preferable and 5-100 micrometers is more preferable.

  As a method of forming the first adhesive portion S1 and the second adhesive portion S2, an adhesive is applied to the surface of the surface protective layer 54 with a predetermined thickness and pattern, and the adhesive application surface is formed on the antenna circuit of the substrate 2 A method of adhering to the surface, IC chip mounting surface (one surface 2A of the base material in FIG. 6) is preferable.

  Examples of the method for applying the pressure-sensitive adhesive to the surface protective layer 54 include a method in which the pressure-sensitive adhesive is applied in a pattern by a screen printer or the like.

  A release material 44 is laminated on the third adhesive portion S3. Any material may be used as the release material 44. For example, films made of various resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene, polypropylene, polyarylate, polyethylene laminated paper, polypropylene laminated paper, clay coat Those based on various paper materials such as paper, resin-coated paper and glassine paper are preferred. As the surface of the base material and the surface to be bonded to the adhesive portion, a surface subjected to a peeling treatment as necessary can be used.

  Examples of the release treatment method include formation of a release agent layer made of a release agent such as a silicone resin, a long-chain alkyl resin, or a fluorine resin. The thickness of the release agent layer is not particularly limited, and may be appropriately selected according to known examples.

  As a method for forming the third adhesive portion S3, an adhesive is applied to the release surface (surface showing peelability) of the release material 44 with a predetermined thickness and pattern, and the adhesive-applied surface is applied to the antenna of the substrate 2. A method of adhering to the circuit forming surface and the surface opposite to the IC chip mounting surface (the other surface 2B of the substrate in FIG. 6) is preferable.

  Next, the case where the IC tag 120 shown in FIG. 6 is expired and the IC chip 22 is collected will be described with reference to FIG.

  FIG. 7A shows a state before peeling of the IC tag 120 attached to the adherend 1000 such as a product.

  When the IC tag 120 is used for data management or the like, first, the release material 44 attached to the IC tag 120 shown in FIG. 6 is peeled off from the third adhesive portion S3, and as shown in FIG. 7 (a). Then, the IC tag 120 is affixed to the adherend 1000 that is a data management object.

  In this state, after the adherend 1000 circulates the distribution route, the data of the IC chip 22 is referred to and predetermined data management is performed. As a result, the role of the IC tag 120 regarding data management ends.

  Thereafter, as shown in FIG. 7B, the IC tag 120 bonded to the adherend 1000 is peeled from the adherend 1000.

  In this case, since the notched broken line 28 is formed in advance in the IC tag 120, the base material 2 and the two notched broken line forming terminals 24 and 26 are provided along the notched broken line 28 surrounding the IC chip 22. The closed region 30 including the IC chip 22 is cut off from the adherend 1000 together with the surface protective layer 54. Thereby, the IC chip 22 is collected. On the other hand, the other part of the IC tag 120 is left behind on the adherend 1000 (FIG. 7C). As a result, the surface circuit formed on the substrate 2 is destroyed, and the IC tag 120 expires.

Further, even if the closed region 30 including the IC chip 22 peeled off together with the surface protective layer 54 is attached to the original IC tag again, it is substantially impossible to restore the surface circuit. Thus, a revocation operation cannot be restored once it has been executed.

(Second form)
FIG. 8 is a side cross-sectional view showing an example of the IC tag 122 of the second form, which is different from the IC tag 120.

  In the IC tag 122, a fourth adhesive portion S4 is formed in the gap 48 of the IC tag 120 shown in FIG. Other configurations are the same as those of the IC tag 120 shown in FIG.

  The fourth adhesive portion S4 needs to have an adhesive strength of 1/3 or less of the adhesive strength of the first adhesive portion S1 and the third adhesive portion S3, and is preferably 1/5 or less.

  As an adhesive which comprises 4th adhesion part S4, the adhesive similar to what was illustrated by said 1st-3rd adhesion part S1-S3 can be utilized without a restriction | limiting.

  The thickness of the fourth adhesive portion S4 is also the same as the thickness of the first adhesive portion S1, the second adhesive portion S2, and the third adhesive portion S3, preferably 5 to 200 μm, more preferably 5 to 100 μm.

  The method of forming the fourth adhesive portion S4 is the same as that of the third adhesive portion S3, and an adhesive is applied to the surface of the release material 44 with a predetermined thickness and pattern, and the adhesive application surface is applied to the antenna circuit of the substrate 2. A method of adhering to the formation surface and the surface opposite to the IC chip mounting surface (the other surface 2B of the substrate in FIG. 8) is preferable.

The IC chip recovery method after the IC tag 122 having the above structure is attached to the adherend and used for distribution management and the circuit destruction mode of the IC tag are the same as those described with reference to FIG. Therefore, the description is omitted.

(Third form)
FIG. 9 is a side sectional view showing an example of the third form of the IC tag of the present invention.

  In FIG. 9, reference numeral 140 denotes an IC tag, and the IC inlet 100 has the same configuration as the IC inlet 100 shown in FIG. 1, and the same reference numerals are given to the same components. That is, the IC inlet 100 is formed by forming a surface circuit on one surface 2A of the substrate 2 and mounting the IC chip 22 on the surface circuit. The notch broken line 28 formed in the base material 2, the closed region 30 surrounded by the notched broken line, and the region 29 including the closed notched broken line are formed in the same manner as the IC tag 120 shown in FIG. . The surface circuit and the like are embedded in the seventh adhesive portion S7. However, the adhesive portion is not formed in the closed region 30 surrounded by the notched broken line, and a gap portion 67 is formed between the release material 44 and the substrate 2.

  A fifth adhesive portion S5 is formed in a region 29b corresponding to the region 29 including the closed broken line on the other surface 2B of the substrate 2. Furthermore, a sixth adhesive portion S6 is formed on the other surface 2B of the base material so as to surround the periphery of the fifth adhesive portion S5.

  A surface protective layer 54 is laminated on the fifth adhesive portion S5 and the sixth adhesive portion S6. The surface protective layer 54 has a tab 46 that protrudes outward from the peripheral edge of the sixth adhesive portion S6.

  The tab 46 may be formed on the entire periphery of the peripheral portion of the surface protective layer 54, but is not limited thereto, and may be formed on a part of the peripheral portion. As will be described later, the tab 46 has a handle for removing the IC tag from the adherend by hooking a finger or the like when the role of the IC tag is completed and the IC chip is collected from the adherend. .

  The shape of the tab 46 is not limited to the shape in which the surface protective layer 54 protrudes from the adhesive portion as long as it is a shape that allows the IC tag to be peeled from the adherend and can be grasped with a finger or the like. As other tab shapes, for example, a semi-circular tab 46a as shown in FIG. 14 or a rectangular tab 46b as shown in FIG. 15 may be used.

  Here, the adhesive strength of the fifth adhesive portion S5 and the seventh adhesive portion S7 is three times or more the adhesive strength of the sixth adhesive portion S6, and preferably 5 times or more. There is no particular upper limit on the adhesive strength, but when an ordinary commercially available adhesive is used, the upper limit is about 30 times.

  FIG. 10 shows a state where the IC chip 22 is recovered from the adherend 1000 after the IC tag 140 shown in FIG. 9 is attached to the adherend 1000.

  The peeling is performed by pulling the tab 46 formed on the peripheral edge of the surface protective layer 54 downward in the adherend 1000.

Since the adhesive strength of the fifth adhesive portion S5 and the adhesive strength of the seventh adhesive portion S7 are more than three times larger than the adhesive strength of the sixth adhesive portion S6, the surface circuit is cut along the broken line 28 and the IC tag is expired. At the same time, the IC chip 22 is peeled off from the adherend 1000 together with the surface protective layer 54 and collected.

(4th form)
FIG. 11 is a side sectional view showing an example of the fourth form of the IC tag of the present invention.

  The IC tag 150 shown in FIG. 11 is different from the IC tag 140 shown in FIG. 9 in that the eighth adhesive portion S8 is formed in the gap 67 of the IC tag 140 shown in FIG. The configuration is the same.

The adhesive strength of the eighth adhesive portion S8 and the sixth adhesive portion S6 is 1/3 or less of the adhesive strength of the fifth adhesive portion S5 and the seventh adhesive portion S7. Therefore, the circuit destruction and recovery method when recovering the IC tag 150 from the adherend are the same as those described with reference to FIG.

(5th form)
FIG. 12 shows a side sectional view of an example of the IC tag 160 of the fifth embodiment of the present invention. In FIG. 12, reference numeral 100 denotes an IC inlet, and its configuration is the same as that described in FIG. On the surface (one surface 2A) on which the IC chip 22 of the IC inlet 100 is mounted, a ninth adhesive portion S9 is formed so as to cover the entire surface. Further, an intermediate base material 50 is laminated on the ninth adhesive portion S9. The intermediate substrate 50 can be selected from the sheets exemplified for the surface protective layer 54. A thirteenth adhesive portion S13 is formed in a region 72 of the intermediate substrate 50 corresponding to the closed region 30 surrounded by the broken line. A twelfth adhesive portion S12 is formed around the thirteenth adhesive portion S13 so as to surround it.

  Further, a release material 44 is laminated on the twelfth and thirteenth adhesive portions S12 and S13.

  The base material 2, the ninth adhesive portion S <b> 9, and the intermediate base material 50 are formed with notched broken lines 28 penetrating them.

  On the other hand, a tenth adhesive portion S10 is formed in a region 29b corresponding to the region 29 including the notched broken line on the other surface 2B of the substrate 2 (the surface opposite to the IC chip mounting surface). Further, an eleventh adhesive portion S11 is formed so as to surround the tenth adhesive portion S10.

  A surface protective layer 54 is laminated so as to cover the tenth adhesive part S10 and the eleventh adhesive part S11. The surface protective layer 54 has a tab 46 that protrudes outward from the eleventh adhesive portion S11 at the periphery.

  Here, the adhesive strength of the ninth adhesive portion S9, the tenth adhesive portion S10, and the twelfth adhesive portion S12 is three times or more larger than the adhesive strength of the eleventh adhesive portion S11 and the thirteenth adhesive portion S13, and five times or more. preferable.

  FIG. 13 shows a state where the IC chip 22 is recovered from the adherend 1000 after the IC tag 160 shown in FIG. 12 is attached to the adherend 1000.

  The surface circuit is cut along the notched broken line 28 and the IC tag expires, and the IC chip 22 is peeled off from the adherend 1000 together with the surface protective layer 54 and collected.

  Each antenna circuit forms a surface circuit on one surface of the substrate. However, the present invention is not limited to this, and a part of the surface circuit may be formed on the other surface. For example, the planar coil circuit part formed on one surface of the base material and the counter electrode can be connected via a through hole with a connection line formed on the other surface of the base material. In this case, it is not necessary to form a jumper.

  Furthermore, the planar coil circuit part can be formed on both surfaces of the base material, and these can be connected via a through hole to increase the inductance of the planar coil circuit part.

  Furthermore, for the purpose of improving the reliability of the IC tag, surface circuits having the same or different characteristics may be individually formed on one surface and the other surface of the substrate.

  Furthermore, by forming a plurality of counter electrodes to be connected to the planar coil circuit unit, connecting these counter electrodes to a plurality of intermediate portions of the planar coil circuit unit, and selecting a counter electrode for mounting the IC chip. The inductance of the planar coil circuit unit may be arbitrarily selected.

Example 1
Twenty IC tags whose side sectional views are shown in FIG. 6 were manufactured by the method described below.

(Antenna circuit 110)
The antenna circuit 110 shown in FIG. 2 was manufactured by the following method.

  First, on the copper foil surface of the trade name Nikaflex (Cu / PET = 35 μm / 50 μm manufactured by Nikkan Kogyo Co., Ltd.) in which copper foil and polyethylene terephthalate film (PET) are bonded together, the external extraction electrode 4 and the planar coil circuit A resist pattern for forming the portion 6, the internal extraction electrode 8, the counter electrodes 16, 18, the lead portions 14, 20, and the notched broken line forming terminals 24, 26 was printed. This was etched to remove unnecessary copper foil portions, and an integrated wiring pattern was manufactured.

  The line width of the circuit was 0.2 mm.

  Next, an insulating layer 10 was formed between the external extraction electrode 4 and the internal extraction electrode 8 so as to cover the planar coil circuit portion 6 by using an insulating resist ink (ML25089 manufactured by Nippon Atson Co., Ltd.). Further, the external extraction electrode 4 and the internal extraction electrode 8 were connected by a jumper 12 using a silver paste (DW250L-1 manufactured by Toyobo Co., Ltd.). The insulating layer 10 and the jumper 12 were formed using a screen printing method.

  Twenty antenna circuits 110 shown in FIG. 2 were produced by the above method.

(IC inlet 100)
An RFID-IC chip (manufactured by Philips, ICode) was mounted on the manufactured antenna circuit. For the mounting, a flip chip mounting machine (manufactured by Kyushu Matsushita, FB30T-M) was used. An anisotropic conductive adhesive (TAP0402E, manufactured by Kyocera Chemical Co., Ltd.) is used as a bonding material, and 20 IC inlets 100 shown in FIG. 1 are thermocompression bonded under the conditions of 220 ° C., 1.96 N, 7 seconds. Produced.

(Formation of third adhesive portion S3)
Then, surrounding the periphery of the region corresponding to the region 29 including the closed notch broken line of the release treatment surface of the release material 44 (SP-8KX 80 μm thickness manufactured by Lintec Co., Ltd. in which a silicone resin is applied to glassine paper). An acrylic pressure-sensitive adhesive (PA-T1 manufactured by Lintec Corporation) was applied and dried so that the thickness after drying was 20 μm, thereby forming a third pressure-sensitive adhesive portion S3. The adhesive was applied by screen printing. The release material having the third adhesive portion S3 formed on the surface thereof as described above was bonded to the other surface 2B of the substrate 2 of the IC inlet 100.

(Formation of notched broken line 28)
A notched broken line 28 having a diameter of 17 mm was formed by using a mainspring blade in which notched broken line forming perforations were formed in the 20 manufactured IC tags. The notched broken line forming terminals 24 and 26 forming the notched broken line 28 have a length of 4 mm (corresponding to Q in FIG. 2), and the notched broken line formed on each of the notched broken line forming terminals 24 and 26. The length (corresponding to a and b in FIG. 1) was 13 mm each.

  The notched broken line 28 was a non-cut portion 34 length Y: a notch cut portion 32 length X = 1: 3, and a non-cut portion length Y was 0.5 mm.

  Notched broken lines were formed in notched broken line forming terminals for all IC tags.

(Lamination of surface protective layer 54)
As the surface protective layer 54, a PET film (Crisper K2411 manufactured by Toyobo Co., Ltd., thickness 50 μm) was prepared. In the region corresponding to the region including the closed cut-out broken line of the surface protective layer 54, the acrylic pressure-sensitive adhesive (PA-T1 manufactured by Lintec Corporation) is previously applied and dried so that the thickness after drying becomes 20 μm. Thus, the first adhesive portion S1 was formed. In addition to the region corresponding to the region including the closed notched broken line, an acrylic adhesive (M-209HZ, manufactured by Lintec Corporation) is applied and dried so that the thickness after drying becomes 9 μm, and then the second adhesive. Part S2 was formed. Thus, the surface protective layer 54 in which the adhesive portions S1 and S2 were formed was bonded to one surface 2A of the IC inlet base material in which the broken line 28 was formed.

  The pressure-sensitive adhesive PA-T1 (thickness after drying 20 μm) used for the first pressure-sensitive adhesive part S1 and the third pressure-sensitive adhesive part S3 and the pressure-sensitive adhesive M-209HZ (thickness after drying 9 μm) used for the second pressure-sensitive adhesive part S2 Were coated on a support (PET) having a thickness of 50 μm to prepare a test piece. Using these test pieces, the adhesion to the stainless steel plate was measured according to JIS-Z0237. The adhesive strength of PA-T1 was 18 N / 25 mm, the adhesive strength of M-209HZ was 1.3 N / 25 mm, and the adhesive strength of PA-T1 was about 14 times that of M-209HZ.

(Operation check method)
The operation of the manufactured IC tag was confirmed by a Read / Write test using an I Code evaluation kit SLEV400 manufactured by Philips. It was confirmed that all 20 produced IC tags were operating normally.

(Expiration test)
Twenty IC tag release materials 44 were peeled off, and the IC tag was attached to a polypropylene resin plate. After 24 hours, the surface protective layer 54 was clawed and the IC tag was peeled off from the polypropylene resin plate. As a result, 20 IC tags were cut along the broken lines, and the surface circuit was physically destroyed. As a result, the IC tag was destroyed and its function expired. The closed region 30 cut along the broken line is attached to the surface protective layer 54, and 20 IC chips 22 are collected. The results are shown in Table 1.

Example 2
In the same manner as in Example 1, 20 IC tags shown in FIG. However, formation of 3rd adhesion part S3 and 4th adhesion part S4 was based on the method shown below.

  That is, an acrylic pressure-sensitive adhesive (in the region corresponding to the region 29 including the closed notch broken line) of the release treatment surface of the release material 44 (SP-8KX, thickness 80 μm manufactured by Lintec Co., Ltd. in which a silicone resin is applied to glassine paper) Lintec M-209HZ) was applied and dried so that the thickness after drying was 9 μm, thereby forming a fourth adhesive portion S4. Further, an acrylic pressure-sensitive adhesive (PA-T1 manufactured by Lintec Co., Ltd.) was applied and dried so as to surround the fourth pressure-sensitive adhesive part S4 so that the thickness after drying was 20 μm, thereby forming a third pressure-sensitive adhesive part S3. Each adhesive was applied by screen printing. The release material 44 on which the third adhesive portion S3 and the fourth adhesive portion S4 were formed as described above was bonded to the other surface 2B of the substrate 2 of the IC inlet 100.

  After confirming that the IC tag operates normally in the same manner as in Example 1, the IC tag was attached to a polypropylene resin plate. After 24 hours, when the attached IC tag was peeled off, the surface circuits of the 20 IC tags were physically destroyed. The results are shown in Table 1.

Example 3
An IC tag similar to that of Example 1 except that the surface protective layer 54 having a tab 46 not coated with an adhesive, which protrudes 10 mm outward from the adhesive portion over the entire periphery of the surface protective layer 54. 20 sheets were manufactured. That is, this IC tag was an IC tag having the same configuration as the IC tag shown in FIG. 6 except that it had a tab.

  The operation of the manufactured IC tag was confirmed in the same manner as in Example 1. All 20 sheets operated normally.

  The revocation test was performed in the same manner as in Example 1. All 20 sheets were cut along the broken line, the circuit was physically destroyed, and the function of the IC tag expired.

  The closed region 30 cut along the broken line is attached to the surface protective layer 54, and all the IC chip 22 is recovered. The results are shown in Table 1.

Example 4
An IC tag similar to that of Example 2 except that the surface protective layer 54 having a tab 46 not coated with an adhesive, which protrudes 10 mm outward from the adhesive portion over the entire periphery of the peripheral portion of the surface protective layer 54. 20 sheets were manufactured. That is, this IC tag was the same as the IC tag shown in FIG. 8 except that it had a tab.

  The operation of the manufactured IC tag was confirmed in the same manner as in Example 1. All 20 sheets operated normally.

  The revocation test was performed in the same manner as in Example 1. All 20 sheets were cut along the broken line, the circuit was physically destroyed, and the function of the IC tag expired.

  The closed region 30 cut along the broken line is attached to the surface protective layer 54, and all the IC chip 22 is recovered. The results are shown in Table 1.

Example 5
Twenty IC tags shown in FIG. 12 were produced according to the method of Example 2. The same PET film as the surface protective layer 54 was used for the intermediate substrate 50. The ninth adhesive portion S9, the tenth adhesive portion S10, and the twelfth adhesive portion S12 of this IC tag were formed by applying and drying the acrylic adhesive PA-T1 so that the thickness after drying was 20 μm. The 11th adhesive part S11 and the 13th adhesive part S13 were formed by applying and drying an acrylic adhesive M-209HZ so that the thickness after drying was 9 μm. The length of the tab 46 protruding outward was 10 mm.

  The operation of the manufactured IC tag was confirmed in the same manner as in Example 1. All 20 sheets operated normally.

  The revocation test was performed in the same manner as in Example 1. All 20 sheets were cut along the broken line, the circuit was physically destroyed, and the function of the IC tag expired.

  The closed region 30 cut along the broken line is attached to the surface protective layer 54, and all the IC chip 22 is recovered. The results are shown in Table 1.

Example 6
An IC tag was produced in the same manner as in Example 4 except that an acrylic adhesive (M-4 manufactured by Lintec Corporation) was used for the first adhesive part S1 and the third adhesive part S3. When the adhesive strength of M-4 was measured by the same method as the adhesive strength measurement method performed in Example 1, it was 6.8 N / 25 mm, and the adhesive strength of M-4 was that of M-209HZ (1 3N / 25mm).

  The operation of the manufactured IC tag was confirmed in the same manner as in Example 1. All 20 sheets operated normally.

  The revocation test was performed in the same manner as in Example 1. All 20 sheets were cut along the broken line, the circuit was physically destroyed, and the function of the IC tag expired.

  The closed region 30 cut along the broken line is attached to the surface protective layer 54, and all the IC chip 22 is recovered. The results are shown in Table 1.

Comparative Example 1
Twenty IC tags were manufactured in the same manner as in Example 1 except that notched broken lines were not formed.

  The operation was carried out in the same manner as in Example 1, and after confirming that the IC tag operated normally, it was bonded to a polypropylene resin plate. After 24 hours, when the attached IC tag was peeled off, the surface protective layer 54, the first adhesive portion S1, and the second adhesive portion S2 were peeled off from the interface with the antenna circuit. Although the adhesive strength of the first adhesive portion S1 was strong and peeling was difficult, the destruction of the antenna circuit of the 20 IC tags was not confirmed.

  Thereafter, when the operation was confirmed using the SLEV 400, the operation as an IC tag for all 20 sheets was normal. From the above results, the revocation effect of these IC tag functions was not recognized.

Comparative Example 2
Twenty IC tags were produced in the same manner as in Example 4 except that the same adhesive PA-T1 (the thickness after drying was 20 μm) was used for all of the adhesive portions S1 to S3.

  After confirming normal operation as in Example 1, it was bonded to a polypropylene resin plate. After 24 hours, when the attached IC tag was peeled off, the third adhesive portion S3 was broken (part of the adhesive remained on the polypropylene resin plate) and peeled off from the polypropylene resin plate. The destruction of the antenna circuit of the 20 IC tags was not confirmed.

  Thereafter, when the operation was confirmed using the SLEV 400, the operation as an IC tag for all 20 sheets was normal. From the above results, the revocation effect of these IC tag functions was not recognized.

Comparative Example 3
In Example 5, 20 IC tags were produced in the same manner as in Example 5 except that the adhesive PA-T1 was used for the 11th adhesive part S11.

  After confirming normal operation as in Example 1, it was bonded to a polypropylene resin plate. After 24 hours, when the attached IC tag was peeled off, the twelfth adhesive portion S12 was broken (part of the adhesive remained on the polypropylene resin plate) and peeled off from the polypropylene resin plate. The destruction of the antenna circuit of the 20 IC tags was not confirmed.

  Thereafter, when the operation was confirmed using the SLEV 400, the operation as an IC tag was normal for all 20 sheets. From the above results, the revocation effect of these IC tag functions was not recognized.

Comparative Example 4
The first adhesive part S1 and the third adhesive part S3 are acrylic adhesives (PA-10 made by Lintec), the second adhesive part S2 and the fourth adhesive part S4 are acrylic adhesives (M-4 made by Lintec Corporation) and An IC tag was produced in the same manner as in Example 4 except that. When the adhesive strength of PA-10 was measured by the same method as the adhesive strength measurement method performed in Example 1, it was 11.9 N / 25 mm, and the adhesive strength of PA-10 was the adhesive strength of M-4 (6 .8 N / 25 mm).

  After confirming normal operation as in Example 1, it was bonded to a polypropylene resin plate. After 24 hours, when the attached IC tag was peeled off, it peeled off between the third adhesive part S3, the fourth adhesive part S4 and the polypropylene resin plate, and the notched broken line was not broken. The destruction of the antenna circuit of the 20 IC tags was not confirmed.

  Thereafter, when the operation was confirmed using the SLEV 400, the operation as an IC tag for all 20 sheets was normal. From the above results, the revocation effect of these IC tag functions was not recognized.

It is a top view which shows an example of the IC inlet which comprises the IC tag of this invention. It is a top view which shows an example of the antenna circuit used for IC inlet shown in FIG. It is the elements on larger scale which show an example of a notch broken line. It is explanatory drawing which shows the other example of a notch broken line. It is a top view which shows the other example of an antenna circuit. It is side surface sectional drawing which shows an example of the 1st form of the IC tag of this invention. It is explanatory drawing which shows the revocation effect | action of the IC tag of the 1st form of this invention, (a) is the state bonded together to the adherend before peeling, (b) and (c) were divided | segmented after peeling. Indicates the state of the IC tag. It is side surface sectional drawing which shows an example of the 2nd form of the IC tag of this invention. It is side surface sectional drawing which shows an example of the 3rd form of the IC tag of this invention. It is explanatory drawing which shows the revocation effect | action of the IC tag of the 3rd form of this invention, (a) is the state bonded together to the adherend before peeling, (b) and (c) were divided | segmented after peeling. Indicates the state of the IC tag. It is side surface sectional drawing which shows an example of the 4th form of the IC tag of this invention. It is side surface sectional drawing which shows an example of the 5th form of the IC tag of this invention. It is explanatory drawing which shows the revocation effect | action of the IC tag of the 5th form of this invention, (a) is the state bonded together to the to-be-adhered body before peeling, (b) and (c) are the amount after peeling. It is a perspective fragmentary view which shows an example of the tab form of the IC tag of this invention. It is a perspective fragmentary view which shows the other example of the tab form of the IC tag of this invention.

Explanation of symbols

120, 122, 140, 150, 160 IC tag 2 Substrate 4 External extraction electrode 6 Planar coil circuit portion 8 Internal extraction electrode 10 Insulating layer 12 Jumper 14 One lead portion 16 One counter electrode 17 One end 18 The other counter Electrode 19 Outside other end 20 Other lead 22 IC chip 24, 26 Notched broken line forming terminal P Width Q Length 28 Notched broken line 29 Region including closed notched broken line 29b Enclosed closed notched broken line Region corresponding to region 30 Closed region 32 Notch cut part 34 Non-cut part 44 Release material 46, 46a, 46b Tab 48, 67 Void part 50 Intermediate base material 54 Surface protective layer 2A One side of base material 2B Other base material Surface S1 1st adhesive part S2 2nd adhesive part S3 3rd adhesive part S4 4th adhesive part S5 5th adhesive part S6 6th adhesive part S7 7th adhesive part S8 8th adhesive part S9 9th adhesive part S10 10th adhesive part S11 11th adhesive part S12 12th adhesive part S13 13th adhesive part T Arrow X Cutting part length Y Non-cutting part length a, b Notch Broken line length 100 IC inlet 110, 180 Antenna circuit 1000 Substrate

Claims (9)

(A) an antenna circuit having a substrate and a planar circuit formed on the substrate and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit unit; An IC inlet having: an IC chip;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) IC of the base material except for the first adhesive portion formed in the region including the closed notched broken line and the region including the closed notched broken line on the substrate surface on which the IC chip is mounted. A second adhesive portion formed to cover the substrate surface on which the chip is mounted;
(D) a surface protective layer that covers the first adhesive part and the second adhesive part and is adhered to the first adhesive part and the second adhesive part;
(E) a third adhesive portion formed on the surface opposite to the IC chip mounting surface of the substrate, excluding a region corresponding to a region including the closed cut-out broken line;
Have
(F) The adhesive force of the first adhesive part and the third adhesive part is at least three times the adhesive force of the second adhesive part.
A non-contact IC tag having a void portion where no adhesive is present in a region including a closed notched broken line on a surface opposite to an IC chip mounting surface of the substrate. (A) an antenna circuit having a substrate and a planar circuit formed on the substrate and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit unit; An IC inlet having: an IC chip;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) IC of the base material except for the first adhesive portion formed in the region including the closed notched broken line and the region including the closed notched broken line on the substrate surface on which the IC chip is mounted. A second adhesive portion formed to cover the substrate surface on which the chip is mounted;
(D) a surface protective layer that covers the first adhesive part and the second adhesive part and is adhered to the first adhesive part and the second adhesive part;
(E) a third adhesive portion formed on the surface opposite to the IC chip mounting surface of the substrate, excluding a region corresponding to a region including the closed cut-out broken line;
Have
(F) The adhesive strength of the first adhesive portion and the third adhesive portion is three times or more the adhesive strength of the second adhesive portion, and (g) the opposite surface of the substrate to the IC chip mounting surface is closed. A non-contact IC tag, wherein a fourth adhesive portion having an adhesive strength equal to or less than 1/3 of the adhesive strength of the first adhesive portion and the third adhesive portion is formed in a region including the notched broken line. (A) an antenna circuit having a substrate and a planar circuit formed on the substrate and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit unit; An IC inlet having: an IC chip;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) Corresponding to a fifth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and a region including the closed notched broken line A sixth adhesive part formed so as to cover the opposite surface of the substrate surface on which the IC chip of the substrate is mounted except for the area to be formed;
(D) a surface protective layer that covers the fifth adhesive portion and the sixth adhesive portion and is adhered to the fifth adhesive portion and the sixth adhesive portion;
(E) a seventh adhesive portion formed on the base material surface on which the IC chip of the base material is mounted except for the region including the closed notched broken line;
Have
(F) The adhesive force of the fifth adhesive part and the seventh adhesive part is at least three times the adhesive force of the sixth adhesive part.
A non-contact IC tag having a void portion in which an adhesive is not present in a region including a closed cut-out broken line on an IC chip mounting surface of the substrate. (A) an antenna circuit having a substrate and a planar circuit formed on the substrate and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit unit; An IC inlet having: an IC chip;
(B) a closed notched broken line formed around the IC chip through the substrate and the surface circuit;
(C) Corresponding to a fifth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and a region including the closed notched broken line A sixth adhesive part formed so as to cover the opposite surface of the substrate surface on which the IC chip of the substrate is mounted except for the area to be formed;
(D) a surface protective layer that covers the fifth adhesive portion and the sixth adhesive portion and is adhered to the fifth adhesive portion and the sixth adhesive portion;
(E) a seventh adhesive portion formed on the base material surface on which the IC chip of the base material is mounted except for the region including the closed notched broken line;
Have
(F) The adhesive strength of the fifth adhesive portion and the seventh adhesive portion is three times or more the adhesive strength of the sixth adhesive portion, and (g) a broken notch broken line on the IC chip mounting surface of the substrate. A non-contact IC tag, wherein an eighth adhesive portion having an adhesive strength of 1/3 or less of the adhesive strength of the fifth adhesive portion and the seventh adhesive portion is formed in a region including (A) an antenna circuit having a substrate and a planar circuit formed on the substrate and a surface circuit including at least a pair of counter electrodes connected to the planar coil circuit unit; An IC inlet having: an IC chip;
(B) a ninth adhesive part formed so as to cover the substrate surface on which the IC chip is mounted; an intermediate base material adhered to the ninth adhesive part;
(C) a closed notch broken line formed around the IC chip through the base material, the surface circuit and the intermediate base material;
(D) Corresponds to the tenth adhesive portion formed in a region corresponding to the region including the closed notched broken line on the opposite surface of the substrate surface on which the IC chip is mounted, and the region including the closed notched broken line An eleventh adhesive portion formed so as to cover the base material surface opposite to the base material surface on which the IC chip of the base material is mounted except for the area to be formed;
(E) a surface protective layer that covers the tenth adhesive part and the eleventh adhesive part and is adhered to the tenth adhesive part and the eleventh adhesive part;
(F) The 12th adhesive part formed in the surface opposite to the 9th adhesion part adhesion side of the above-mentioned intermediate base material except the field containing the above-mentioned closed notch broken line, and the 9th adhesion part pasting of the above-mentioned intermediate base material A thirteenth adhesive portion formed in a region corresponding to a region including the closed notched broken line on the opposite surface to the wearing surface;
(H) The adhesive strength of the ninth adhesive portion, the tenth adhesive portion, and the twelfth adhesive portion is three times or more the adhesive strength of the eleventh adhesive portion and the thirteenth adhesive portion, respectively.
A non-contact IC tag characterized by the above. 6. The non-contact IC tag according to claim 1, wherein a notched broken line forming terminal is formed in each lead portion connecting the planar coil circuit portion and each of the at least one pair of counter electrodes. The contactless IC tag according to claim 1, wherein the surface protective layer is opaque. The non-contact IC tag according to any one of claims 1 to 7, further comprising a tab projecting outward from the surface protective layer at a peripheral edge portion of the surface protective layer. The non-contact IC tag according to any one of claims 1 to 8, wherein a release material is attached to a surface opposite to the surface of the non-contact IC tag to which the surface protective layer is attached.

Images