IC card

• US 6,900,767 B2
• Filed: 09/18/2002
• Issued: 05/31/2005
• Est. Priority Date: 09/28/2001
• Status: Expired due to Fees

• Current Assignee: Konica Corporation (Konica Minolta Inc.)
• Original Assignee: Konica Corporation (Konica Minolta Inc.)
• Inventors: Hattori, Ryoji
• Primary Examiner(s): Wimer, Michael C.
• Application Number:
  US10/246,211
• Publication Number:
  US 20030132302A1
• Time in Patent Office: 986 Days
• Field of Search: 343/700.MS, 343/702, 343/866, 343/867, 343/873, 343/895, 235/380, 235/488, 235/492
• US Class Current: 343/702
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/0775 arrangements for connecting the integrated circuit to the antenna
• CPC Class Codes: H01L 2224/16 of an individual bump connector
• CPC Class Codes: H01L 2224/16225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/16227 the bump connector connecting to a bond pad of the item
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/01019 Potassium [K]
• CPC Class Codes: H01L 2924/0102 Calcium [Ca]
• CPC Class Codes: H01L 2924/01025 Manganese [Mn]
• CPC Class Codes: H01L 2924/01079 Gold [Au]
• CPC Class Codes: H01L 2924/12041 LED
• CPC Class Codes: H01L 2924/12044 OLED
• CPC Class Codes: H01L 2924/3025 Electromagnetic shielding

Abstract

An IC card comprising: a first sheet member; a second sheet member; and a core layer fixed therein an electronic part by an adhesive agent and provided between the first sheet member and the second sheet member. The electronic part comprises an antenna coil formed by an antenna wire and an IC module comprising an IC chip. The antenna wire has a structure represented by following General Formula 1,
Antenna Shape X1 ≧Antenna Shape Y1×1.2
wherein Antenna Shape X1 represents the cross sectional width of the antenna wire being parallel to the surface of the IC card; Antenna Shape Y1 represents the cross sectional width of the antenna wire being perpendicular to the surface of the IC card.

Claims

1. An IC card comprising:

a first sheet member;

a second sheet member; and

a core layer fixed therein an electronic part by an adhesive agent and provided between the first sheet member and the second sheet member, the electronic part comprising an antenna coil formed by an antenna wire and an IC module comprising an IC chip,

wherein the antenna wire has a structure represented by following General Formula 1,

Antenna Shape Y1×

7.0≧

Antenna Shape X1≧

Antenna Shape Y1×

1.2

wherein Antenna Shape X1 represents the cross sectional width of the antenna wire being parallel to the surface of the IC card; and

Antenna Shape Y1 represents the cross sectional width of the antenna wire being perpendicular to the surface of the IC card.

2. The IC card of claim 1, wherein the electronic part further comprises a connecting section between the antenna coil and the IC chip, the connecting section having a structure represented by following General Formula 2,

Antenna Shape Y2×

7.0≧

Antenna Shape X2≧

Antenna Shape Y2×

1.2

wherein Antenna Shape X2 represents the cross sectional width of the connecting section being parallel to the surface of the IC card; and

Antenna Shape Y2 represents the cross sectional width of the connecting section being perpendicular to the surface of the IC card.

3. The IC card of claim 2, wherein the structure of the antenna wire and the connecting section satisfy the following General Formula 3 and General Formula 4,

Antenna Shape Y1>

Antenna Shape Y2

Antenna Shape X2>

Antenna Shape X1.

4. The IC card of claim 1, wherein the IC card further comprising a image receptive layer and a write-able layer at least on a part of surface of the IC card,

wherein the image receptive layer comprises personal identification information including a name and a face image, the personal identification information being recorded by a sublimation thermal transfer method, a fusion thermal transfer method or an ink jet method.

5. The IC card of claim 1, wherein the adhesive agent comprises a adhesive agent being capable of being hardened without heat.

6. The IC card of claim 4, wherein the IC card further comprises a transparent protective layer on the image receptive layer, the transparent protective layer comprising an actinic light curable resin.

7. The IC card of claim 1, wherein the antenna wire is consisted of copper windings.

8. The IC card of claim 1, wherein the X1 and Y1 is in the range of 0.1 to 800.0 μ

m.

9. The IC card of claim 1, wherein the antenna wire further has a structure represented by the following formula,

Antenna Shape Y1×

2.0≧

Antenna Shape X1≧

Antenna Shape Y1×

1.2

wherein Antenna Shape X1 represents the cross sectional width of the antenna wire being parallel to the surface of the IC card; and

Antenna Shape Y1 represents the cross sectional width of the antenna wire being perpendicular to the surface of the IC card.

10. An IC card comprising:

a first sheet member;

a second sheet member; and

a core layer fixed therein an electronic part by an adhesive agent and provided between the first sheet member and the second sheet member, the electronic part comprising an antenna coil formed by an antenna wire, an IC module comprising an IC chip and a connecting section between the antenna coil and the IC chip,

wherein the connecting section has a structure represented by following General Formula 2,

Antenna Shane Y2×

7.0≧

Antenna Shape X2≧

Antenna Shape Y2×

1.2

wherein Antenna Shape X2 represents the cross sectional width of the connecting section being parallel to the surface of the IC card; and

Antenna Shape Y2 represents the cross sectional width of the connecting section being perpendicular to the surface of the IC card.

11. The IC card of claim 10, wherein the connecting section is consisted of wire.

12. The IC card of claim 10, wherein the X2 and Y2 is in the range of 0.1 to 800.0 μ

m.

13. An IC card comprising:

a first sheet member;

a second sheet member; and

a core layer fixed therein an electronic part by an adhesive agent and provided between the first sheet member and the second sheet member, the electronic part comprising an antenna coil formed by an antenna wire and an IC module comprising a reinforcing plate having thereon an IC chip,

wherein the IC card further comprises a IC chip hiding part to hide at least 5% of the IC chip or the reinforcing plate.

14. The IC card of claim 13, wherein the IC chip hiding part is printed on the first sheet member or the second sheet member.

15. The IC card of claim 13, wherein the difference in transmission density between the hiding part and an IC chip layer which is located in a portion of the IC card in which the electronic part is not arranged is at most 0.7.