JPH07228081A - Preventive method for unfair use of ic card, and its ic card - Google Patents

Abstract

PURPOSE:To protect an IC card until just before it use by enabling its unfair use by a third party to be discriminated and preventing an internal data from being electrostatically destructed by a method wherein a false adhesive layer is stuck to an external contact terminal in the IC card having the external contact terminal. CONSTITUTION:An IC card has a semiconductor integrated circuit built-in, and is equipped with an external contact terminal 2 for giving and receiving data with a reader-writer at least on a part of a surface. In that case, a false adhesive layer 3 is stuck to at least a part of the external contact terminal 2. Then, the false adhesive layer 3 is tuck by adhesive force to the extent wherein, for example, when once peeled off, it can not be stuck again, and prevents destruction or the like of the data owing to static electricity from outside by using a seal having an insulating property. Further, a hologram seal which is high in a forgery preventive effect, a notched seal wherein when once peeled off, it can not return to an original state, etc., may be used. Furthermore, the false adhesive layer 3 is stuck in manufacture and in issuing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC memory card with a built-in semiconductor integrated circuit or an IC card with a built-in CPU, which has an electrical contact terminal with an external device, until the card is issued. Method for preventing unauthorized use of data and its IC card.

[0002]

2. Description of the Related Art In recent years, the sophistication of information in society has been remarkable, and cards have become indispensable in social life. Compared to conventional stripe cards, IC cards equipped with or incorporating ICs such as microcomputers and memories have the characteristics of high security, high privacy protection, and large storage capacity. The use is spreading. For example, in the company, it is used as an employee ID card for multiple purposes such as employee cafeteria / store use, in-house deposit use, compound benefit use, entry / exit management, attendance / leaving management, health management, and financial, medical, and sales. -Experimental use is spreading in fields such as services, transportation, manufacturing, and education.

These IC cards are usually supplied from the card manufacturer to the issuer, and issued from the issuer to the holder who actually uses the card. When supplied to the issuer from the card manufacturer, the first issuance process of the IC card is performed to suit the mode of use,
When issuing from the issuer to the holder, I
Second, the individual information such as the D number and the personal identification number is written.

[0004]

However, such an IC card has an external contact terminal for connection for electrically and mechanically connecting the IC circuit and an external data processing device for information exchange. Since it has electrodes, there are problems such as data destruction due to static electricity from the outside of the IC circuit and unauthorized use such as data rewriting by a third party. Also, IC
When a card is used, whether the IC card is before use or not is not marked with a hole or the like like a prepaid card. I could not do it.

[0005]

In order to solve the above-mentioned problems, the inventor has found that at least the external contact terminal portion of an IC card before use, that is, an IC card that has just undergone the first or second issuing processing Then, a pseudo adhesive layer is provided.

[0006]

Since the pseudo adhesive layer is provided on at least the contact terminal portion of the IC card, there is no fear of being affected by static electricity from the outside, and the pseudo adhesive layer cannot be replaced once it is peeled off. You can judge by appearance.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the IC card of the present invention. 2 shows a second embodiment of the IC card of the present invention, and FIG. 3 shows a third embodiment of the IC card of the present invention.

In FIG. 1, reference numeral 1 denotes an IC card according to the present invention, which contains a semiconductor integrated circuit (IC circuit), and an external contact terminal 2 for exchanging data with a reader / writer on the upper surface of the card. Is equipped with. 3 is a pseudo adhesive layer.

The pseudo adhesive layer is attached when the card manufacturer supplies it to the issuer, or when the issuer issues it to the holder. The pseudo adhesive layer may be provided on at least the external contact terminal, and may be provided on the entire surface of the card as shown in FIG. This pseudo adhesive layer is provided with an adhesive force such that it cannot be reattached once it is peeled off, and if an insulative seal is used, data destruction inside the IC card due to static electricity from the outside can be prevented. In addition, a hologram sticker having a high anti-counterfeiting effect or a cut sticker that does not return to the original shape once peeled off can be provided as needed.

FIG. 3 shows an embodiment in which the IC card has a magnetic stripe or a bar code. In this case, not only the external contact terminal but also the magnetic stripe or the bar code portion which is affected by the magnetic field or dirt. By attaching a pseudo adhesive layer, data protection of the entire card is possible.

When an insulative seal is used as the pseudo adhesive layer, any material may be used as long as the external contact terminals are not affected by external static electricity or the like.

[0012]

Since the appearance of the IC card can be judged whether it is unused or not by the presence or absence of the pseudo adhesive layer, it is possible to judge illegal use by a third party. In addition, the data in the IC card and the function of the IC circuit are not impaired by static electricity or dirt from the outside before use, and the IC card can be protected until just before use.

[Brief description of drawings]

FIG. 1 is a first embodiment of an IC card of the present invention.

FIG. 2 is a second embodiment of the IC card of the present invention.

FIG. 3 shows a third embodiment of the IC card of the present invention.

[Explanation of reference numerals] 1 IC card of the present invention 2 External contact terminal 3 Pseudo adhesive layer 4 Magnetic stripe 5 Bar code

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Claims (3)

[Claims] 1. An IC card having an external contact terminal, wherein a pseudo adhesive layer is attached to at least the contact terminal portion to prevent unauthorized use of the IC card. 2. An IC card having an external contact terminal, wherein a pseudo adhesive layer is provided at least on the contact terminal portion. 3. The pseudo adhesive layer is an insulating material.
The listed IC card.