IC card

Abstract

To improve the massive feeling of a metallic IC card provided with an IC module.SOLUTION: The IC card 2 includes a metal plate 50 having a through hole 51 penetrating in the Z direction, a metal support member 80 disposed in the through hole 51 in a state of being separated from the metal plate 50, and an IC module 60 supported by the support member 80 in the through hole 51. The support member 80 has a hollow portion 81 that penetrates in the Z direction and accommodates a part of the IC module 60, and a slit 88 that extends from the hollow portion 81 to the peripheral edge.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an IC card. [Background technology]

[0002] Patent Document 1 discloses an IC card that includes a metal layer having a COB (chip on board) receiving space, a COB received in the COB receiving space, and an antenna coil. In the COB receiving space, the COB is held by a PVC insert. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-010670 Summary of the Invention [Problem to be solved by the invention]

[0004] In IC cards with a metal layer such as that described in Patent Document 1, increasing the sense of solidity is an issue to be addressed.

[0005] In this disclosure, a technique for enhancing the solid feel of an IC card equipped with a metal plate is described. [Means for solving the problem]

[0006] An IC card according to one embodiment of the present disclosure comprises a metal plate having a first through hole penetrating in the thickness direction, a metal support member at least a portion of which is positioned within the first through hole while spaced apart from the metal plate, and an IC module supported by the support member within the first through hole, wherein the support member has a hollow portion penetrating in the thickness direction and accommodating a portion of the IC module, and a slit extending from the hollow portion to the periphery. [Effects of the Invention]

[0007] According to the present disclosure, a technique is provided that enhances the sense of solidity of an IC card equipped with a metal plate. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic perspective view showing the appearance of an IC card 2 according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is a schematic exploded perspective view for explaining the structure of the IC card 2. As shown in FIG. [Figure 3] FIG. 3 is a schematic cross-sectional view for explaining the structure of the IC card 2. As shown in FIG. [Figure 4] FIG. 4 is a schematic perspective view of the IC module 60 as seen from the rear side. [Figure 5] FIG. 5 is a schematic diagram showing a state in which the IC card 2 and the card reader 6 communicate with each other. [Figure 6] 6A and 6B are diagrams for explaining the structure of the support member 80 housed in the through-hole 51 of the metal plate 50, where (a) is a schematic perspective view and (b) is a schematic cross-sectional view. [Figure 7] FIG. 7 is a schematic cross-sectional view for explaining the structures of the resin layer 10 and the magnetic body 30. As shown in FIG. [Figure 8] FIG. 8 is a schematic cross-sectional view for explaining the structure of the resin layer 10 and the magnetic body 30 according to a modified example. [Figure 9] FIG. 9 is a partial schematic cross-sectional view showing a first modified example of an IC module 60 and its surrounding structure. [Figure 10] FIG. 10 is a partial schematic cross-sectional view showing a second modified example of an IC module 60 and its surrounding structure. [Figure 11] FIG. 11 is a schematic cross-sectional view illustrating the structure of an IC card 2A according to the second embodiment. [Figure 12] FIG. 12 is a partial schematic cross-sectional view showing a third modified example of an IC module 60 and its surrounding structure. [Figure 13] FIG. 13 is a partial schematic cross-sectional view showing a fourth modified example of an IC module 60 and its surrounding structure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Preferred embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0010] FIG. 1 is a schematic perspective view showing the appearance of an IC card 2 according to a first embodiment of the present disclosure.

[0011] 1, the IC card 2 according to the first embodiment is a plate-like body with the Y direction as the longitudinal direction, the X direction as the lateral direction, and the Z direction as the thickness direction, and has a top surface 2a and a back surface 2b that form the XY plane. The IC card 2 has an IC module (described later) built in, and terminal electrodes E of the IC module are exposed on the top surface 2a of the IC card 2.

[0012] 2 and 3 are a schematic exploded perspective view and a schematic cross-sectional view, respectively, for explaining the structure of the IC card 2 according to the first embodiment.

[0013] 2 and 3, the IC card 2 according to the first embodiment has a structure in which a plastic plate 40, a coil component 1, and a metal plate 50 are layered in this order from the back surface 2b side toward the top surface 2a side. The coil component 1 is composed of a magnetic body 30, a coil pattern CP arranged on one surface side (+Z direction) of the magnetic body 30, and a resin layer 10. The coil pattern CP may be embedded in the resin layer 10. The other surface side (-Z direction) of the magnetic body 30 is covered with a metal plate 50. The magnetic body 30 may be a sheet-like member.

[0014] The magnetic body 30 and the metal plate 50 have through holes 31 and 51, respectively. These through holes 31 and 51 overlap in the Z direction, which is the stacking direction. The plastic plate 40 and the coil component 1 are bonded via an adhesive layer 71. The metal plate 50 and the coil component 1 are bonded via an adhesive layer 72. Examples of materials for the adhesive layers 71 and 72 include acrylic double-sided tape, thermosetting resin, and thermoplastic resin.

[0015] The plastic plate 40 is made of a resin material that does not interfere with magnetic flux. The outer surface of the plastic plate 40 forms the back surface 2b of the IC card 2. The metal plate 50 is made of a metal material such as stainless steel or titanium. The outer surface of the metal plate 50 forms the top surface 2a of the IC card 2. A through hole 51 is provided in the metal plate 50, and at least a part of the support member 80 and the IC module 60 are disposed inside the through hole 51. In this way, the IC card 2 according to this embodiment is a card in which a metal plate is used for the main body.

[0016] 2 and 3, the coil pattern CP is configured by a conductor pattern consisting of multiple turns. Each of the multiple turns constituting the coil pattern CP has a first winding portion 21 that winds in a first direction along the outer edge of the magnetic body 30 so as to overlap with the magnetic body 30, and a second winding portion 22 that is located in an opening region 210 surrounded by the first winding portion 21 and winds in a second direction opposite to the first direction. At least a portion of the second winding portion 22 of the coil pattern CP overlaps with the through hole 31 of the magnetic body 30. As a result, a portion of the second winding portion 22 of the coil pattern CP overlaps in the Z direction with the IC module 60 placed in the through hole 51 of the metal plate 50 via the through hole 31 of the magnetic body 30.

[0017] The first winding portion 21 of the coil pattern CP functions as an antenna coil that magnetically couples with an external card reader during actual use. The second winding portion 22 of the coil pattern CP functions as a coupling coil that magnetically couples with the IC module 60. The second winding portion 22 of the coil pattern CP may function as part of an antenna coil that magnetically couples with an external card reader. For example, if the resonant frequency of the coil pattern CP is set to 13.56 MHz or a frequency band near 13.56 MHz, near-field communication (NFC) becomes possible between the external card reader and the IC card 2. [0]

[0018] FIG. 4 is a schematic perspective view of the IC module 60 as seen from the rear side.

[0019] As shown in FIG. 4, the IC module 60 includes a module substrate 61, an IC chip 62 mounted on or built into the module substrate 61, and a coupling coil 63. The IC chip 62 is protected by being covered with a dome-shaped protective resin 64. The protective resin 64 is made of an insulating material. Terminal electrodes E shown in FIG. 1 are provided on the front surface of the module substrate 61. The IC module 60 having such a configuration is housed in a through-hole 51 formed in a metal plate 50 and supported by a support member 80. When the IC module 60 is housed in the through-hole 51, the coupling coil 63 and a second winding portion 22, which is a part of the coil pattern CP, are magnetically coupled. The second winding portion 22 of the coil pattern CP is connected to a first winding portion 21, which is another part of the coil pattern CP that functions as an antenna coil. This enables the IC module 60 to communicate with the outside via the first winding portion 21 of the coil pattern CP.

[0020] 5, when the back surface 2b of the IC card 2 is faced to the card reader 6, communication can be performed between the card reader 6 and the IC chip 62. In other words, the card reader 6 is magnetically coupled to the coupling coil 63 of the IC module 60 via the coil pattern CP, thereby realizing communication with the IC chip 62.

[0021] 6A and 6B are diagrams for explaining the structure of the support member 80 housed in the through-hole 51 of the metal plate 50, where (a) is a schematic perspective view and (b) is a schematic cross-sectional view.

[0022] The support member 80 is a single metal member used to support the IC module 60 in the through-hole 51 of the metal plate 50. The support member 80 may be composed of multiple metal members, but if it is composed of a single member, the support member is stable and the mounting position of the IC module 60 is stable. For example, the IC module 60 is inserted into the through-hole 51 of the metal plate 50 while being supported by and adhered to the support member 80. The entire support member 80 may be disposed in the through-hole 51 of the metal plate 50, or only a portion of the support member 80 may be disposed in the through-hole 51 of the metal plate 50. As shown in FIG. 6( a), the support member 80 has an outer shape that is approximately rectangular parallelepiped and has a hollow portion 81 that penetrates in the Z direction. More specifically, the support member 80 has an upper surface 82 and a lower surface 83 that form the XY plane and are located opposite each other, side surfaces 84 and 87 that form the YZ plane and are located opposite each other, and side surfaces 85 and 86 that form the XZ plane and are located opposite each other, and is provided with a hollow portion 81 that runs from the center of the upper surface 82 to the center of the lower surface 83.

[0023] 3, a part of the IC module 60, for example, a part of the protective resin 64, is housed in a hollow portion 81 of the support member 80. An upper surface 82 of the support member 80 is adhered to the resin layer 10 via an adhesive layer 73 provided at a position overlapping the through-hole 51 of the metal plate 50 and the through-hole 31 of the magnetic body 30. A lower surface 83 of the support member 80 is adhered to the module substrate 61 of the IC module 60 via an adhesive layer 74 made of a hot-melt resin or the like.

[0024] Furthermore, the support member 80 has a slit 88 extending from the hollow portion 81 to the periphery. The periphery refers to the outer peripheral surface of the support member 80, which is the side surfaces 84 to 87 of the support member 80 that are parallel to the Z direction. In the example shown in FIG. 6(a), the slit 88 is provided from the hollow portion 81 to the side surface 84. The slit 88 completely divides the side surface 84. In the example shown in FIG. 6(a), the side surface 84 is divided by the slit 88 into two regions 84a and 84b. By providing such a slit 88, the support member 80 is not a perfect cylinder, and has a structure in which current cannot circulate around the hollow portion 81 when the Z direction is the axial direction.

[0025] As a result, magnetic coupling between the second winding portion 22 of the coil pattern CP and the coupling coil 63 of the IC module 60 is ensured even though the support member 80 is made of metal. Furthermore, at least the metal portion of the support member 80 is disposed in the through-hole 51 while being separated from the metal plate 50 and not in contact with it, thereby ensuring insulation from the metal plate 50. To further ensure insulation between the support member 80 and the metal plate 50, an insulating member 89 may be provided to cover the surface of the support member 80, as shown in FIG. 6(b). Furthermore, in this embodiment, the support member 80 is made of a single member, which reduces the number of parts.

[0026] Furthermore, because the support member 80 is made of metal, the weight of the IC card 2 increases, thereby giving the IC card 2 a sense of solidity. To further enhance the sense of solidity of the IC card 2, the metal constituting the support member 80 may be a metal with a greater specific gravity than the metal constituting the metal plate 50. For example, if the metal plate 50 is made of stainless steel or titanium, the metal constituting the support member 80 may be tungsten, gold, platinum, lead, or the like. Furthermore, the sense of solidity of the IC card 2 can be further enhanced by increasing the thickness of the support member 80 in the Z direction within the range that allows the IC module 60 to be accommodated in the through-hole 51 of the metal plate 50. For example, the thickness of the support member 80 in the Z direction may be greater than the combined thickness of the module substrate 61 and the IC chip 62 in the Z direction.

[0027] Furthermore, the support member 80, the second winding portion 22 of the coil pattern CP, and the coupling coil 63 of the IC module 60 may partially overlap in a plan view seen in the Z direction, which is the thickness direction. In the example shown in Fig. 3, the inner wall of the cavity 81 of the support member 80 is located between the outer and inner edges of the second winding portion 22 of the coil pattern CP, and is also located between the outer and inner edges of the coupling coil 63, when seen in the Z direction. This makes it possible to ensure a sufficient mass of the support member 80 while ensuring magnetic coupling between the second winding portion 22 of the coil pattern CP and the coupling coil 63.

[0028] FIG. 7 is a schematic cross-sectional view for explaining the structures of the resin layer 10 and the magnetic body 30. As shown in FIG.

[0029] 7, the coil pattern CP is embedded in a resin layer 10. The resin layer 10 has a structure in which a first layer 11 and a second layer 12 are stacked in the Z direction, but if the first layer 11 and the second layer 12 are made of the same material, the interface 13 between them is not necessarily clear.

[0030] The coil pattern CP includes a seed portion S containing resin and a main portion M made of a metal material laminated on the seed portion S. The metal material constituting the main portion M may be Cu. The seed portion S may contain a material that functions as a catalyst when plating the main portion M. The conductivity of the main portion M may be higher than the conductivity of the seed portion S. Furthermore, the thickness of the main portion M may be thicker than the thickness of the seed portion S. This makes it possible to reduce the resistance value of the coil pattern CP. In the example shown in FIG. 7, the entire surface of the coil pattern CP is covered with a resin layer 10 and is not exposed.

[0031] The coil pattern CP may be formed on the surface of a substrate (not shown), embedded with a first layer 11, and then the substrate is peeled off and a second layer 12 is formed. The resin layer 10 may contain particles and a binder resin R1. The particles contained in the resin layer 10 may be inorganic filler particles or black color pigment particles. Non-magnetic inorganic materials such as alumina, aluminum hydroxide, talc, magnesium hydroxide, silica, calcium carbonate, barium titanate, zirconium titanate, and zinc zirconate may be used as the inorganic filler particles. When inorganic filler particles are used as the particles contained in the resin layer 10, insulating inorganic filler particles F1 to F3 having different particle sizes may be used. In this way, using three types of inorganic filler particles F1 to F3 having different particle size distributions increases the filling rate of the inorganic filler particles in the resin layer 10.

[0032] The magnetic body 30 covers the first winding portion 21 of the coil pattern CP to prevent magnetic flux from being applied to the metal plate 50. The magnetic body 30 is not disposed in at least a portion of the area overlapping the second winding portion 22 of the coil pattern CP, which is a coupling coil, and a through-hole 31 is provided instead. The magnetic body 30 may be a magnetic resin layer containing flat magnetic powder F4 and binder resin R2. The flat magnetic powder F4 may be composed of a metal magnetic material such as sendust, permalloy, Fe-Si-Cr-based alloy magnetic material, Fe-Si-Al-Cr-based alloy magnetic material, or Fe-Al-Cr-based alloy magnetic material. The thickness direction of the flat magnetic powder F4 is the Z direction, and the longitudinal direction is the XY plane direction perpendicular to the Z direction. The flat magnetic powder F4 is oriented so that the longitudinal direction is approximately parallel to the XY plane direction. This increases the magnetic permeability of the magnetic body 30 in the XY plane direction.

[0033] FIG. 8 is a schematic cross-sectional view for explaining the structure of the resin layer 10 and the magnetic body 30 according to a modified example.

[0034] In the modified example shown in FIG. 8, the second layer 12 of the resin layer 10 is removed at a position overlapping the through-hole 31 of the magnetic body 30, thereby exposing the second winding portion 22 of the coil pattern CP from the resin layer 10. Since the other basic configuration is the same as the structure shown in FIG. 7, the same elements are given the same reference numerals and redundant explanations will be omitted. The structure shown in FIG. 8 makes it possible to prevent interference between the IC module 60 and the resin layer 10 even when the IC module 60 is thicker. Here, the surface of the second winding portion 22 of the coil pattern CP that is exposed from the resin layer 10 is made of a seed portion S that has lower conductivity than the main body portion M, so a decrease in reliability due to exposure of the coil pattern CP can be suppressed.

[0035] FIG. 9 is a partial schematic cross-sectional view showing a first modified example of an IC module 60 and its surrounding structure.

[0036] The first modified example shown in FIG. 9 differs from the structure shown in FIG. 3 in that the adhesive layer 73 is omitted and a resin member 65 is included. Since the other basic structure is the same as the structure shown in FIG. 3, the same elements are denoted by the same reference numerals and redundant description will be omitted. The first modified example shown in FIG. 9 is applicable to the case where the coil pattern CP is not exposed at the position overlapping the through-hole 31 of the magnetic body 30 and the entire surface is made of the binder resin R1 of the adhesive resin layer 10, as shown in FIG. 7. In this case, the support member 80 is directly bonded to the binder resin R1 of the resin layer 10. This not only eliminates the need for the adhesive layer 73, but also increases the thickness of the support member 80 in the Z direction by the thickness of the adhesive layer 73, thereby further enhancing the solid feel of the IC card 2. On the other hand, when the coil pattern CP is exposed at the position overlapping the through-hole 31 of the magnetic body 30, as shown in FIG. 8, the support member 80 can be bonded using the adhesive layer 73, as described with reference to FIG. 3.

[0037] 9, a resin member 65 is filled in the gap between the metal plate 50 and the support member 80 in the through hole 51. The resin member 65 may be in contact with the magnetic body 30. Filling the through hole 51 with such a resin member 65 not only more reliably fixes the IC module 60 in the through hole 51 but also improves the insulation between the metal plate 50 and the support member 80.

[0038] FIG. 10 is a partial schematic cross-sectional view showing a second modified example of an IC module 60 and its surrounding structure.

[0039] The second modified example shown in FIG. 10 differs from the structure shown in FIG. 3 in that the adhesive layer 73 and the resin layer 10 are partially removed at a position that overlaps with the opening region surrounded by the second winding portion 22 of the coil pattern CP in a plan view, and the size of the protective resin 64 is larger. Since the other basic structure is the same as the structure shown in FIG. 3, the same elements are denoted by the same reference numerals and redundant description will be omitted. The through hole 14 provided in the resin layer 10 overlaps with the through hole 51 of the metal plate 50 and the through hole 31 of the magnetic body 30. According to the second modified example shown in FIG. 10, even if the height of the protective resin 64 of the IC module 60 in the Z direction is large, it is possible to prevent interference between the protective resin 64 and the resin layer 10.

[0040] FIG. 11 is a schematic cross-sectional view illustrating the structure of an IC card 2A according to the second embodiment.

[0041] 11, the IC card 2A according to the second embodiment differs from the IC card 2 according to the first embodiment in that the coil pattern CP is provided on one surface 91 of a substrate 90 made of a PET film or the like. The other surface 92 of the substrate 90 is adhered to the magnetic body 30 via an adhesive layer 75. Since the other basic structure is the same as that of the IC card 2 according to the first embodiment, the same elements are denoted by the same reference numerals and redundant explanations will be omitted.

[0042] As exemplified by the IC card 2A according to the second embodiment, it is not essential to embed the coil pattern CP in the resin layer 10, and it is also possible to use a coil pattern CP provided on the surface 91 of a base material 90 made of a PET film or the like. In the example shown in FIG. 11, a support member 80 is adhered to the adhesive layer 75.

[0043] FIG. 12 is a partial schematic cross-sectional view showing a third modified example of an IC module 60 and its surrounding structure.

[0044] The third modified example shown in Fig. 12 differs from the structure shown in Fig. 11 in that the adhesive layer 75 is removed and another adhesive layer 76 is provided instead in the region overlapping the through hole 51 of the metal plate 50 and the through hole 31 of the magnetic body 30. Since the other basic structure is the same as the structure shown in Fig. 11, the same elements are given the same reference numerals and redundant description will be omitted. According to the third modified example shown in Fig. 12, different materials can be used for the adhesive layer 75 and the adhesive layer 76, and after the adhesive layer 76 is adhered to the support member 80, the IC module 60 can be accommodated in the through hole 51 of the metal plate 50.

[0045] FIG. 13 is a partial schematic cross-sectional view showing a fourth modified example of an IC module 60 and its surrounding structure.

[0046] The fourth modified example shown in FIG. 13 differs from the structure shown in FIG. 11 in that the adhesive layer 75 and the base material 90 are partially removed at a position that overlaps with the opening region surrounded by the second winding portion 22 of the coil pattern CP in a plan view, and the size of the protective resin 64 is larger. Since the other basic structure is the same as the structure shown in FIG. 11, the same elements are denoted by the same reference numerals, and redundant description will be omitted. The through hole 93 provided in the base material 90 overlaps with the through hole 51 of the metal plate 50 and the through hole 31 of the magnetic body 30. According to the fourth modified example shown in FIG. 13, even if the height of the protective resin 64 of the IC module 60 in the Z direction is large, interference between the protective resin 64 and the base material 90 can be prevented.

[0047] The above describes preferred embodiments of the present disclosure, but the present disclosure is not limited to the above embodiments, and various modifications are possible within the scope of the present disclosure, and it goes without saying that these modifications are also included within the scope of the present disclosure.

[0048] The technology according to the present disclosure includes, but is not limited to, the following configuration examples.

[0049] An IC card according to an embodiment of the present disclosure includes a metal plate having a first through hole penetrating the metal plate in a thickness direction, a metal support member at least a portion of which is disposed in the first through hole while spaced apart from the metal plate, and an IC module supported by the support member in the first through hole, wherein the support member has a cavity penetrating the metal plate in a thickness direction and accommodating a portion of the IC module, and a slit extending from the cavity to a periphery, thereby giving the IC card a sense of solidity.

[0050] In the IC card described above, the support member may be made of a single member, which makes it possible to reduce the number of parts.

[0051] The IC card may further include an insulating member that covers the surface of the support member, which makes it possible to easily ensure insulation between the support member and the metal plate.

[0052] In the IC card described above, the IC module includes an IC chip and a module substrate on which the IC chip is mounted or embedded, and the support member may be thicker than the combined thickness of the module substrate and the IC chip, thereby enhancing the sense of solidity of the IC card.

[0053] In the IC card, the metal constituting the support member may have a greater specific gravity than the metal constituting the metal plate, which can further enhance the solid feel of the IC card.

[0054] The IC card may further include a coil pattern and a magnetic body located between the metal plate and the coil pattern in the thickness direction, the magnetic body having a second through hole overlapping the first through hole, the coil pattern having a first winding portion overlapping the magnetic body and a second winding portion connected to the first winding portion and winding along the second through hole of the magnetic body, and the IC module may have a coupling coil magnetically coupled to the second winding portion of the coil pattern. This enables communication between the IC module and an external card reader via the first winding portion of the coil pattern.

[0055] In the above IC card, the inner wall of the cavity of the support member may be located between the outer and inner edges of the coupling coil when viewed in the thickness direction, which makes it possible to increase the mass of the support member while ensuring magnetic coupling between the second winding part of the coil pattern and the coupling coil of the IC module.

[0056] The IC card may further include a resin layer supporting the coil pattern, and the resin layer may have a third through hole overlapping the first through hole and the second through hole, thereby reducing interference between the IC module and the resin layer.

[0057] The IC card may further include a resin member that fills the gap between the metal plate and the support member in the first through hole, thereby fixing the support member in the first through hole and improving the insulation between the metal plate and the support member. [Explanation of symbols]

[0058] 1 Coil parts 2,2A IC card 2a Top of IC card 2b Back of IC card 6. Card Reader 10 Resin layer 11 1st layer 12 2nd layer 13 Interface 14 Through holes 21 First Lap 22 2nd lap section 30 Magnetic material 31 Through hole 40 plastic plates 50 Metal Plates 51 Through hole 60 IC modules 61 Module Board 62 IC chips 63 Coupling coil 64 Protective Resin 65 Resin parts 71~76 Adhesive layer 80 Support member 81 Cavity 82 Top surface 83 Bottom surface 84~87 Side 84a,84b area 88 Slit 89 Insulating materials 90 Base material 91,92 Surface of the substrate 93 Through Hole 210 Opening area CP coil pattern E terminal electrode F1~F3 Inorganic filler particles F4 flat magnetic powder M Main body R1, R2 binder resin S Seed Section

Claims

1. a metal plate having a first through hole penetrating in a thickness direction; a metal support member at least a portion of which is disposed within the first through hole while being spaced apart from the metal plate; an IC module supported by the support member in the first through hole; Equipped with The support member has a hollow portion that penetrates in a thickness direction and accommodates a part of the IC module, and a slit that extends from the hollow portion to a peripheral edge. IC card.

2. The support member is composed of a single member.

2. The IC card according to claim 1.

3. Further provided is an insulating member covering a surface of the support member.

2. The IC card according to claim 1.

4. the IC module includes an IC chip and a module substrate on which the IC chip is mounted or embedded, the support member is thicker than the total thickness of the module substrate and the IC chip; 2. The IC card according to claim 1.

5. The metal constituting the support member has a larger specific gravity than the metal constituting the metal plate.

2. The IC card according to claim 1.

6. The coil pattern, a magnetic body located between the metal plate and the coil pattern in a thickness direction; Furthermore, the magnetic body has a second through hole overlapping with the first through hole, the coil pattern has a first winding portion that overlaps the magnetic body, and a second winding portion that is connected to the first winding portion and winds around the second through hole of the magnetic body, the IC module has a coupling coil that is magnetically coupled to the second winding portion of the coil pattern; 2. The IC card according to claim 1.

7. an inner wall of the hollow portion of the support member is located between an outer peripheral edge of the coupling coil and an inner peripheral edge of the coupling coil when viewed from the thickness direction; 7. The IC card according to claim 6.

8. Further, a resin layer is provided to support the coil pattern. the resin layer has a third through hole overlapping the first through hole and the second through hole; 7. The IC card according to claim 6.

9. The housing further includes a resin member that fills a gap between the metal plate and the support member in the first through hole. The IC card according to any one of claims 1 to 8.

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