WO2014147303A1

WO2014147303A1 - Chip card having a dual communication interface and an incorporated microsd card

Info

Publication number: WO2014147303A1
Application number: PCT/FR2014/000058
Authority: WO
Inventors: Deborah Teboul; Bernard Calvas; Benjamin MEAR
Original assignee: Smart Packaging Solutions
Priority date: 2013-03-19
Filing date: 2014-03-19
Publication date: 2014-09-25
Also published as: FR3003672B1; FR3003672A1

Abstract

The invention relates to a chip card having a dual contact-based and contactless communication interface, comprising a card body (20) provided in the ISO 7810 format and provided with a contact terminal board (26) provided in the ISO 7816-2 format for communicating with a contact-based reader, and further comprising a microelectronic module incorporated in said card body (20) and provided with an antenna (23) for communicating with a contactless reader, and further provided with a contact terminal board (12) in the microSD format for communicating with a contact-based reader, said module being capable of being separated from the card body (20) so as to form a card (21) in the microSD format, and said microelectronic module comprising a microelectronic chip (22) having a contactless communication interface connected to said antenna (23) as well as a contact-based communication interface connected to said contacts (12) provided in the microSD format. Said chip card is characterized in that the contact-based communication interface of the chip is also connected to contacts (24) which are the counterparts of the contacts provided in the ISO 7816-2 format, and which are located on the card (21) provided in the microSD format, and in that the contact terminal board (26) provided in the ISO 7816-2 format is located on the card body (20) but outside the surface of the card (21) provided in the microSD format.

Description

Smart card with dual communication interface with built-in micro SD card

The invention relates to dual-interface smart cards for contact and contactless communication with a smart card reader.

State of the art

Already in the state of the art, smart cards with mixed operation with contact and without contact, also called dual smart cards. Most of these cards have a microelectronic module provided with contacts, said module having a radiofrequency communication interface connected to the terminals of an antenna which is itself made in the card body, and not on the module itself.

Thus, most of these dual communication interface cards according to the state of the art consist of:

an electronic module comprising a microelectronic chip and a contact terminal block in accordance with ISO 7810 intended to be brought into contact with the corresponding terminals of a contact chip card reader, and two contacts located opposite. rear allowing connection to the antenna.

- A card or a plastic insert, including an antenna.

- An electrically conductive material for connection between the two aforementioned contacts of the electronic module and the antenna.

Also known cards say micro SD. They comprise a microcircuit including memory, and a range of contacts aligned along one side of the card and connected to the corresponding pads of the microcircuit. These micro SD cards have the advantage, besides their small size, of being data carriers independent of operators, at the difference of SIM cards that depend on a telephone operator, or bank-based smart cards, which depend on a bank.

Some micro SD cards include, in addition to the contacts, an antenna integrated into the body of the micro SD card (or to a module receiving the micro SD card and provided with an antenna, as described in patent CN102163273) and connected to a radiofrequency communication interface of the micro SD card chip, which turns the micro SD card into a contactless micro SD card.

Moreover, the document WO 2011/145829 A2 describes a chip card in ISO 7810 format, including a micro SD card provided with contact pads conforming to the ISO 7816-2 standard. In order to capitalize on the enormous installed base of contact chip card manufacturing equipment according to the ISO 7816-2 standard, this micro SD card is made in a card body in ISO 7810 format (also called ID1 format). way to be detachable with respect to the IDl card by the touch of a finger. Thus, the chip of the micro SD card is reported in the card body ID1 format, then electrically customized using conventional personalization equipment for smart cards contact, and finally the micro SD card is cut or detached to from the ID card body.

But the aforementioned document does not provide the possibility of customizing the contactless micro SD card using the radio frequency channel. The same applies to the document FR 2 964 063 which provides a card in micro SD format provided with a set of contacts in ISO 7816-2 format and a set of contacts in micro SD format in order to electrically customize the micro card. SD in various types of equipment, but only by contact, since this micro SD card has no antenna.

But the revolution of smart cards and their uses leads to more contactless operating cards, or dual cards, operating both contact and contactless.

Given the reduced and advantageous form factor of the micro card

SD, from the point of view of market demand, as was the case with ISO 7810 format cards, a similar micro SD cards with contacts, to micro SD cards without contact, or to dual micro SD cards with and without contact with a reader.

A micro SD card with contactless operation is described in document WO 2012/140169, which does not describe any possibility of customization by the contact channel, but seeks to optimize the radio frequency coupling between a contactless reader and the micro SD card, by integrating two antennas and a specific communication stage.

But this foreseeable evolution is hampered by technical problems.

Thus, there is no specific electrical customization equipment available on the market for electrically personalizing contactless micro SD cards or dual micro SD cards.

An expensive way to solve this problem would be to make personalization equipment dedicated to contactless micro SD cards or dual micro SD cards.

Another more economical way to proceed would be to find a technical way to customize contactless micro SD cards or dual micro SD cards, allowing you to use the equipment usually used for customizing contactless smart cards or smart cards. dual format ISO 7810. This is the path pursued by the present invention.

In a so-called dual smart card, whether it is a chip in ISO 7810 format or in micro SD format, part of the microelectronic component is addressable by contact customization, and another part of the component is addressable by contactless personalization.

The fleet of customization equipment is either contact or contactless, which is particularly suitable when the card to customize is a so-called hybrid card, namely a smart card having a hybrid module with two chips, namely a chip to operation by contact, and a non-contact operation chip. Indeed, when the contact and contactless functions are dissociated and spread over two chips, there is a need for both corresponding customization modes for writing the personalization data in each memory by the appropriate customization mode.

In contrast, a dual chip card has a single chip that can be addressed indifferently by both contact and non-contact modes.

Contact customization typically favors personalization performance, that is, the percentage of custom cards without scrapping, whereas contactless customization usually favors personalization speed, that is, time to customization required by card.

The personalization mode chosen by a smart card manufacturer for electrical customization essentially depends on its internal constraints and the equipment available to it.

But the best solution for a micro SD chip manufacturer would be to be able to customize a dual SD card dual both by contact and without contact, which would make the electrical customization of these micro cards

SD compatible with the equipment already available, without the need for new specific equipment.

Goals of the invention

A general object of the invention is therefore to provide a dual micro SD microchip card, which has no aforementioned drawbacks, and a suitable manufacturing and customization process.

A particular object of the invention is to propose a micro SD chip card whose design allows its electrical customization either by the contact way, or by the contactless way via its antenna, so that the manufacturer of the micro SD card can choose the most appropriate electric personalization mode, depending on the available equipment.

Summary of the invention According to the principle of the invention, a smart card with dual operation contact and contactless is proposed. It comprises a single microelectronic module comprising a micro SD card breakable or otherwise separable from the card body. This micro SD card is provided with an antenna, the terminals of which are connected to contact pads of the terminal block in micro SD format.

In an innovative way, the smart card according to the invention comprises ISO contacts compliant with the ISO 7816-2 standard, deported next to the micro SD card on the body of the smart card in ID1 format, and connected to contacts corresponding on the micro SD card, but in a much smaller format. In this way, before separation of the micro SD card, it is possible to communicate with the microelectronic chip of the module, in particular for electrical customization purposes, either via the ISO contacts of the card body and the corresponding contacts of the micro SD card. either via the contacts in micro SD format of the module, or again via the antenna of the micro SD module. And this in particular depending on the manufacturing equipment or electrical customization available.

In this way, the contents of the memory of the micro SD card can notably be accessed via the ISO contacts of the smart card and the corresponding contacts located on the micro SD card, which makes it possible in particular to carry out the electrical personalization and the test. micro SD card using conventional personalization equipment generally used for electrical customization of ISO 7810 format cards.

In addition, the dual chip card according to the invention may comprise a second antenna (also called "booster" in English terminology) in its card body, so that there is an inductive coupling between the antenna of the micro SD card and the antenna "booster" of the smart card, capable of improving the communication performance between micro SD card and external equipment, and thus improve the performance of the electrical customization step.

The antenna of the micro SD card is connected to appropriate pins of the microcircuit of the micro SD card, which allows, in addition to personalization Electric micro SD card via the smart card ISO contacts, another mode of electrical customization, by contactless communication between the ISO smart card antenna, the micro SD card antenna, and a reader external used for contactless customization.

Whatever the mode of communication between an external smart card reader and the microcircuit of the micro SD card, the invention further provides that the micro SD card is breakable with respect to the smart card that incorporates it, and after separation of the micro SD card, the ISO 7816-2 format contacts remain on the card body which becomes useless.

Thus, after electrical customization of the micro SD card, the micro SD card is independent and can be inserted into a micro SD card reader, and communicate with him or via contacts in micro SD format, or directly without contact, via the micro SD card antenna.

Advantageously, the micro SD card provided with an antenna is configured to be compatible with the Near Field Communication (NFC) communication standard (acronym for "Near Field Communication").

In this case, it can in particular be inserted into the micro SD card slot of an NFC mobile phone, acting as NFC card reader, or NFC card.

Finally, the subject of the invention is a smart card with a dual contact and contactless communication interface, comprising an ISO 7810 format card body provided with an ISO 7816-2 format contact terminal block for communication with a contact reader, and further comprising a microelectronic module incorporated in said card body, this module being provided with an antenna for communication with a contactless reader and a contact terminal block in micro SD format for communication with a contact reader. In addition, said module is able to be separated from the card body to form a micro SD card. Finally, said microelectronic module comprises a microelectronic chip having on the one hand a contactless communication interface connected to said antenna and, on the other hand, a contact communication interface connected to said micro SD format contacts, and said contact communication interface. is connected in in addition to contacts located on the micro SD card and connected by electrical connections to corresponding contacts of the ISO 7816-2 format terminal block, which is located on the card body but on the outside of the surface of the card in micro SD format. Thus, during the separation of the micro SD card from the card body, said electrical connections are broken and the contact terminal block ISO 7816-2 format remains on the card body.

In this way, before separation of the card body, the micro SD card can communicate with an external reader, in particular for electrical personalization purposes, either via the terminal block contacts in ISO 7816-2 format, or via the micro format contacts. SD, or else via an electromagnetic coupling using the antenna of the micro SD card, which allows to customize the micro SD card on all the customization equipment.

After separation of the micro SD card from the card body, the contacts in ISO 7816-2 format and the possible card body amplification antenna have become useless, but the micro SD card can still communicate with its card. environment, for example a suitable reader, either via the micro SD format contacts or via the antenna of the micro SD card.

Advantageously, the body of the ISO 7810 format smart card comprises a second antenna, namely an amplification antenna called "booster" antenna, disposed in particular in the vicinity of the periphery of the card body so as to amplify the received electromagnetic flux. by the antenna of the micro SD card from an external contactless reader.

Advantageously, said electrical connections between terminals of the terminal block in ISO 7816-2 format and terminal blocks of the terminal block in micro SD format, are conductive tracks screen printed on the surface of the card body, which allows their easy break during the separation between the card body and the micro SD card.

In order to facilitate the removal of the micro SD card from its reader in the use phase of the micro SD card, the invention provides in another variant that the part of the micro SD card opposite to the part that carries them. contacts in micro SD format, called the rear part of the micro SD card, includes gripping means to facilitate the extraction of the micro SD card from a micro SD card reader.

These gripping means are configured for example in the form of a notch, through or not, located on the micro SD card on the opposite side to the one carrying the micro SD contacts.

Alternatively, said gripping means are configured in the form of a flange, and / or a zone with a higher coefficient of friction located on the micro SD card on its side opposite to that which carries the contacts. said gripping means are configured in the form of notches provided on the rear sides of the micro SD card, which allows to easily clear the micro SD card with a finger or a stylus.

The invention also relates to a method of manufacturing a smart card as described above, characterized in that it comprises, after machining the card body and the preparation of a cavity for receiving a module electronics consisting of a micro SD card, a step of making electrical contacts in ISO 7816-2 format located on the card body, and connecting tracks between these ISO contacts and corresponding contacts located on the micro SD card.

The invention also relates to the use of a smart card as described above, consisting of:

before separating it from the card body in ISO 7810 format, electrically customizing the micro SD card from a smart card reader, either via the contacts of said reader placed in electrical contact with the ISO 7816-2 contacts of the smart card, either via the antenna of the micro SD card;

separating the micro SD card from the card body, so as to obtain on the one hand a micro SD card provided with a microelectronic chip connected to contacts in the micro SD format and on an antenna, and on the other hand a body of card with a contact terminal block in ISO 7816-2 format and possibly an amplification antenna; - use the micro SD card for a transaction, by inserting it in a slot of reception of a micro SD card reader.

Other features and advantages of the invention will appear on reading the detailed description and the accompanying drawings in which:

FIG. 1 illustrates in plan view a smart card according to the state of the art, provided with a breakable micro SD card;

FIGS. 2A, 2B illustrate a plan view of a smart card according to the invention, FIG. 2B being an enlarged view of the zone corresponding to the micro SD card;

FIG. 3 illustrates a block diagram of a smart card according to the invention incorporating a micro SD card according to a first embodiment;

FIG. 4 illustrates a block diagram of a smart card according to the invention incorporating a micro SD card according to a second embodiment;

Figure 5 schematically illustrates a first case of use of a micro SD card according to the invention, when integrated in a mobile phone;

FIG. 6 schematically illustrates a second use case of a micro SD card according to the invention when it is integrated in a mobile telephone;

FIG. 7 schematically illustrates a third use case of a micro SD card according to the invention when it is integrated in a mobile telephone;

FIGS. 8A, 8B, 8C schematically illustrate three variants of micro SD cards according to the invention, provided with gripping means to facilitate removal of the micro SD card from an electronic terminal, for example a mobile phone.

Detailed description of the figures Referring to FIG. 1, there is shown in this figure a known smart card according to the document WO 2011/145829, provided with a card 11 in micro SD format. The numerical references of this figure are those of the previous document. The micro SD card 11 is breakable with respect to the chip card 20 of larger size. It comprises electrical contacts 12 compliant with the micro SD standard and allowing its use in card reading devices compatible with micro SD cards. The micro SD card 11 further comprises electrical contacts 13 compatible with the ISO 7816 standard, which allows to electrically customize this micro SD card in personalization devices used for the electrical customization of smart cards in accordance with ISO 7816.

In contrast, the micro SD card 11 has no antenna. It can not therefore be electrically customized by a non-contact operation device. As a result, the micro SD card according to this document is not a card with dual operation, or even with contactless operation.

In order to overcome these drawbacks, the present invention proposes to manufacture micro SD cards of a new type, as described below.

FIG. 2A shows a smart card 20 in ID1 format, on which a micro SD card 21 is made which can be detached from the smart card 20. The micro SD card 21 has electrical contacts 24 connected by electrical connections. 25 to corresponding electrical contacts 26 in ISO 7816-2 format, made on the body of the smart card 20. The card body 20 further comprises an antenna 40 "booster" magnetically coupled with the antenna 23 of the card micro SD, which allows in particular to increase the range or quality of communication with a contactless reader (not shown).

FIG. 2B shows on a larger scale the micro SD card 21 and the contacts 26 in the ISO 7816-2 format carried on the body of the smart card 20.

The micro SD card 21 according to the invention comprises a microelectronic chip 22 which is on the one hand electrically connected to contacts 12 micro SD format, and which is connected on the other hand to the terminals of an antenna 23 whose turns are also located on the micro SD card, for example in the form of conductive turns engraved or screen-printed around the microelectronic chip 22.

According to the invention, the micro SD card 21 is further provided with contacts or connection pads 24 each of which is electrically connected by one of the tracks 25 to one of the corresponding contacts 26 arranged on the card body according to the standard ISO 7816-2 contact chip cards. As shown in FIG. 2B, the contacts 26 are deported with respect to the micro SD card, and are located on the body of the smart card 20 which carries the micro SD card 21 as long as it has not been detached from the micro SD card. the smart card 20 in ID1 format. Thanks to the contacts 24, micro contacts 21 of the card body are recovered from the micro SD card 21, but in a much smaller physical size than the ISO 7816-2 format, with the advantage that after use of the contacts 26 for personalization purposes, these remain on the card body when cutting the micro SD card.

The invention also provides that the method of producing the smart card comprises, after the machining of the card body and the preparation of a cavity for receiving an electronic module composed of a micro SD card, a step of performing, in particular by screen printing, electrical contacts in ISO 7816-2 format, and connection tracks between these ISO contacts and corresponding contacts located on the micro SD card.

Referring to FIGS. 3 and 4, representing the various functional blocks equipping the smart card 20 and the micro SD card 21, in two variant configurations according to the invention, before removing the micro SD card from its smart card support 20.

In FIG. 3, the micro SD card 21 made in the card body 20 thus comprises its contact field 12 in the micro SD format, a small antenna 23, and a field of electrical contacts 24 connected to the contacts 26 of the card body which are in ISO 7816-2 format.

The micro SD card 21 further comprises its own electronic chip or chip 22, known per se, and comprising for example a memory controller 28, a memory 30, a contactless communication stage 29, in particular according to the NFC or ISO 14443 standard, and a security element 27, for example a crypto processor. These functional blocks are known in themselves in the context of micro SD cards, and will not be described further.

FIG. 4 represents a variant in which the cryptoprocessor necessary for the personalization operations is located on the card body 20 and is connected to the chip 22 by a bus 31.

The card body 20 comprises, if necessary, a booster antenna 40 intended to be coupled by electromagnetic coupling to the small antenna 23 of the micro SD card to increase its range, during a phase of personalization of the micro SD card by the contactless way.

The "booster" antenna 40 is produced for example in the form of a screen-printed antenna disposed in the vicinity of the periphery of the body of the smart card 20. It also makes it possible to communicate with a contactless card reader, not shown. .

Referring to Figures 5, 6 and 7 describing examples of non-exhaustive use cases of the micro SD card 21 dual as described above. The three schematized cases make it possible, for example, to confer a communication functionality according to the NFC standard, to a mobile phone that does not have this functionality of its own, but provided with a slot for receiving and reading a micro SD card.

It is assumed that the dual micro SD card 21 has been electrically customized by the contact or non-contact path as previously described. It therefore includes all the programs and data necessary to implement a radio frequency communication function according to the NFC standard with an external NFC reader (not shown).

In FIG. 5, the micro SD card 21 is inserted in the micro SD card slot of a mobile telephone 60 provided in particular with a screen 61 and a battery 62. The mobile telephone 60 is conventionally provided with an antenna 63 for communication with a cellular telephone network, as for example the GSM network. But the phone is not in itself compatible with the NFC standard, it does not have an antenna for a near field communication according to this standard. In this case, the micro SD card 21 is connected by means of electrical connections 64 to the battery 62 of the telephone. This makes it possible to feed the chip 22 of the micro SD card 21, as well as its radio frequency communication stage NFC using the antenna 23 of the micro SD card 21. As the micro SD card 21 is powered by the battery 62, a communication The NFC type is possible with an external reader via the micro SD card and its antenna 23, although the phone does not have a dedicated NFC antenna.

FIG. 6 shows a variant of use of the micro SD card 21 with a mobile telephone 60 provided with a booster antenna 70, for example made in the form of a sticker provided with an antenna and glued. on the back cover of the phone next to the antenna 23 on the card

15 micro SD 21.

In this case, the micro SD card does not need to be powered by the battery 62 of the phone, since the small antenna 23 of the micro SD card recovers enough energy by electromagnetic coupling with the antenna of a reader, via the antenna "booster" 70 of the phone.

FIG. 7 shows a variant of use in which it is assumed that the chip 22 of the micro SD card is a very low power component, low enough for the antenna 23 of the micro SD card 21 can capture enough energy by electromagnetic coupling with the antenna of an external reader, to be able to power the chip 22 low consumption.

The micro SD card 21 being intended to be inserted in a micro SD card reader, for example a mobile phone provided with the appropriate housing, it may arise the question of the physical design of the micro SD card to 0 allow its easy removal, for example to insert another micro SD card, or a simple micro SD memory card, which may be necessary in particular when changing the phone, or transferring data to another device.

For this purpose, one aspect of the invention provides the micro SD card 21 with gripping means to facilitate the extraction of the micro SD card from the terminal that hosts it.

In a first variant shown diagrammatically in FIG. 8A, the micro SD card 21 comprises, on the opposite side to the front side, which comprises the contacts 12 in SD format, namely on the rear side of the micro SD card, a notch 90, through (orifice) or not, accessible with a tip or a stylus, to exert a withdrawal force of the card relative to the housing of the player where it is inserted.

In a second variant shown diagrammatically in FIG. 8B, the gripping means are in the form of a zone 91 with a high coefficient of friction, situated at the rear of the micro SD card and / or a flange 92, making it possible to grab it by this end to easily remove the micro SD card from its slot. Ideally, the chip of the micro SD card is buried sufficiently in the thickness of the card, so that the card body can be thinner than the end provided with the zone 91 with high friction, which allows to generate the rim 92 to further improve the grip of the micro SD card.

In a third variant shown schematically in FIG. 8C, the gripping means are in the form of notches 94 arranged on the rear sides of the micro SD card, designed to allow the engagement of a fingernail or a removal tool. micro SD card from its slot in a drive.

Advantages of the invention

Finally, the invention proposes a particular micro SD card design in that it allows a dual electrical personalization contact and / or contactless. As long as the micro micro SD card is integrated into the smart card that carries it, the chip of the micro SD card can be personalized either by the contact way, by means of a standard equipment for personalization of smart cards to contact according to ISO 7816-2, either by the non-contact way, using non-contact personalization equipment, interacting with the antenna of the micro SD card.

Of course, it can be noted that the dual chip card according to the invention can also be used as such, without detaching the micro SD card, for example for use as a dual bank card.

Claims

1 - Smart card with dual contact and contactless communication interface, comprising a card body (20) in ISO 7810 format provided with a contact terminal block (26) in ISO 7816-2 format for communication with a reader contacting, and further comprising a microelectronic module incorporated in said card body (20) and provided with an antenna (23) for communication with a non-contact reader and a contact terminal block (12) in micro SD format for communication with a contact reader, said module being adapted to be separated from the card body (20) to form a micro SD card (21), and said microelectronic module including a microelectronic chip (22) having a part of a contactless communication interface connected to said antenna (23) and secondly a contact communication interface connected to said contacts (12) in micro SD format, characterized in that said contact communication interface is connected e further to contacts (24) on the micro SD card (21) at corresponding contacts (26) of the ISO 7816-2 format terminal block via electrical connections (25), and said contact terminal block (26) in ISO 7816-2 format is located on the card body (20) but outside the surface of the micro SD card (21), so that during the separation of the micro SD card (21) with respect to the card body (20), said electrical connections (25) are broken and the contact terminal (26) in ISO 7816-2 format remains on the card body (20).

2 - Smart card according to claim 1, characterized in that it comprises a second antenna (40), arranged on the card body (20) in ISO 7810 format so as to amplify the electromagnetic flux received by the antenna ( 23) of the micro SD card (21) from an external contactless reader. 3 - chip card according to claim 2, characterized in that the second antenna (40) is disposed in the vicinity of the periphery of the card body (20). 4 - Smart card according to any one of the preceding claims, characterized in that said electrical connections (25) between pads (26) of the terminal block format ISO 7816-2 and pads (24) located on the card (21). ) in micro SD format, are conductive tracks screen printed on the surface of the card body (20).

5 - Chip card according to any one of the preceding claims, characterized in that the part of the micro SD card (21) opposite the part which carries the contacts (12) micro SD format, comprises gripping means ( 90; 91; 94) to facilitate removal of the micro SD card (21) from a micro SD card reader.

6 - chip card according to claim 5, characterized in that said gripping means are configured in the form of a notch (90) located on the micro SD card (21) on its side opposite to that which carries the micro contacts SD (12).

7 - Chip card according to claim 5, characterized in that said gripping means are configured in the form of a flange (92) and / or a zone (91) with a higher coefficient of friction located on the card micro SD (21) on its side opposite to the one carrying the contacts.

8 - chip card according to claim 5, characterized in that said gripping means are configured in the form of notches (94) provided on the rear sides of the micro SD card.

9 - Use of a smart card (20) according to one of the preceding claims, characterized in that it consists of: before separating it from the card body (20) in the ISO 7810 format, electrically customizing the micro SD card (21) from a chip card reader, either via the contacts of said reader placed in electrical contact with the contacts ISO 7816-2 of the smart card, either via the antenna (23) of the micro SD card;

separating the micro SD card (21) from the card body (20) so as to obtain on the one hand a micro SD card (21) provided with a microelectronic chip connected to micro-SD format contacts and to an antenna (23), and on the other hand a card body provided with a terminal block (26) in ISO 7816-2 format and optionally an amplification antenna (40);

- use the micro SD card (21) for a transaction, inserting it into the receiving slot of a micro SD card reader. 10 - A method of manufacturing a chip card according to any one of claims 1 to 8, characterized in that it comprises, after machining the card body (20) and the preparation of a cavity to receive an electronic module composed of a micro SD card (21), a step of making electrical contacts (26) in ISO 7816-2 format located on the card body (20), and connecting tracks (25) between these ISO contacts (26) and corresponding contacts (24) located on the micro SD card.