EP0744061A1 - Combined chip card - Google Patents

Combined chip card

Info

Publication number
EP0744061A1
EP0744061A1 EP95907546A EP95907546A EP0744061A1 EP 0744061 A1 EP0744061 A1 EP 0744061A1 EP 95907546 A EP95907546 A EP 95907546A EP 95907546 A EP95907546 A EP 95907546A EP 0744061 A1 EP0744061 A1 EP 0744061A1
Authority
EP
European Patent Office
Prior art keywords
contact block
connection
contact
film
chip card
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95907546A
Other languages
German (de)
French (fr)
Inventor
Hans-Diedrich Kreft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angewandte Digital Elektronik GmbH
Original Assignee
Angewandte Digital Elektronik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Angewandte Digital Elektronik GmbH filed Critical Angewandte Digital Elektronik GmbH
Priority to EP96113382A priority Critical patent/EP0751478A3/en
Publication of EP0744061A1 publication Critical patent/EP0744061A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07743—External electrical contacts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07745—Mounting details of integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • Plastic cards are known as chip cards, which exchange energy and data with their read / write devices in a contact-free or contact-related manner. These cards are used for a variety of applications such as telephone cards, health cards, access control cards. An overview of such cards and their uses is compiled in three editions of the German trade magazine electronics year 93.
  • the invention is based on the object of designing the known chip card in such a way that its contact block fulfills several functions, namely a connection function, a switching function for the connection and a protective function against mechanical influences.
  • FIG. 1 shows the two ICs, one of which is designed as a microprocessor ( ⁇ C) and the other as a contactless coupling device (CCI).
  • the ICs usually consist of a chip body (1) with semiconductor properties and connection contacts (2), which are used, for example, for bond connections.
  • the CCI establishes the contactless coupling of the ⁇ C with its environment.
  • the coupling can be done inductively, capacitively or in another non-contact manner.
  • the functions of the CCI can also be integrated in the ⁇ C, so that a single-chip solution results.
  • FIG. 2 shows the underside of a carrier film (4) with the conductor track structure (6) and coil turns (5) for the contact-free coupling. Instead of the coil turns, capacitor plates for contact-free coupling could also be contained on the film. Openings (3) are contained in the film at the points at which the connection contacts (2) of the ICs come to rest when the film and ICs are brought together.
  • FIG. 3 shows the top of the film (4).
  • the openings (3) and additional film openings (9) can be seen.
  • the ICs come to rest on this top side of the film.
  • FIG. 4 shows a section of film (4) and IC (1).
  • An IC (1) is attached to the top of the film.
  • the connection contacts (2) are positioned to match the openings (3), so that a galvanic connection between the chip (1) can be made via the connection contacts (2) through the openings (3) with the conductor track structure (6).
  • These conductor track structures are advantageously produced using an additive method.
  • a catalytic material is first applied to the film (4) as a printed pattern of the conductor connections.
  • a conductor (copper, aluminum) is then deposited in a chemical bath at the locations of the catalytic material.
  • FIG. 5 shows a top view of the contact block, containing the stable core material (10) with the contact surfaces (8) for a galvanic connection with card connection devices.
  • FIG. 5a shows the contact block in a side view.
  • the material of the contact surfaces (8) surrounds the core material in such a way that a galvanic connection is created between the top and the bottom.
  • the points that come to rest on the film openings (9) are provided with conductive material.
  • a recess (12) for receiving the ICs (1) is made in the core material.
  • FIG. 6 shows the contact block, film and IC in one figure and is a sectional view and combination of FIG. 4 and 5.
  • the FIG. 6 simultaneously shows a first embodiment of the claims according to the invention.
  • the contact block is provided with its recess (12) above the IC (1) and, due to its mechanically stable design, acts as protection against mechanical influences for the IC (1).
  • the electrically conductive surfaces (8) between the upper side of the contact block and the lower side of the film with their conductor track structure (6) provide a connection.
  • the additional openings (9) specified according to the patent serve this purpose.
  • the signals are connected from the upper side of the contact block to the conductor track structure and can thus be routed to the connection contacts (2) of the ICs.
  • FIG. 7 shows according to claim 4 a separation of IC (1) and contact block (8, 10).
  • FIG. 8 shows the embedding of the elements from FIG. 6 in the plastic material of a card body (11).
  • FIG. 9 shows the embedding of the elements from FIG. 6 in the plastic material of a card body (11).
  • a reinforcement plate (14) is introduced into the card body.
  • a mechanically stable contact block (10, 8) contains ICs in its recess, which are mechanically protected by the stability of the contact block.
  • the upper side of the contact block contains galvanically conductive material, which are designed on the upper side as contact surfaces (8) for contact-type chip cards.
  • the contact areas serve to connect the connection devices outside the card and the ICs, which are in the recess are included.
  • Another IC (CCI) which is used for contactless coupling and is connected to coils (5) or capacitors, sits protected under the contact block.
  • This second IC (CCI) establishes contact-free coupling with connection devices outside the chip card.
  • the contact block By simultaneously connecting the surface of the contact block, for example as a capacitively sensitive surface, to the base of a field effect transistor in the second IC, it serves as a switch in the event of a capacitive charge change in the surface of the contact block.
  • the contact block thus fulfills the additional function of a switch.
  • contact-free functions of the card can be switched on or off by the card holder. This can be useful if contactless remote access is to be excluded.
  • FIG. 7 shows an embodiment in which ICs and contact block are arranged spatially separated.
  • the contact block no longer represents additional security for the ICs (1), but can still be used as a switch which is located at the places where the contact surfaces usually sit on cards with contacts.
  • a reinforcement plate (14) which protects the unprotected side of the ICs against mechanical influences (FIG. 9).
  • mechanical connecting pieces (15) are firmly mounted on the reinforcing plate.
  • the lower contact surfaces of the contact block lie on these connecting pieces (15), thus providing galvanically conductive connections between the contact surfaces of the contact block and the reinforcement plate.
  • the reinforcement plate can continue this connection to conductor tracks of the film, thus establishing a connection between the contact surfaces of the contact block and the IC.
  • the contact block can be arranged interchangeably, since the connection between contact fields of the contact block and IC is no longer produced by the galvanizing material, but by a connecting element between the contact block and the reinforcement plate (14).
  • the reinforcement plate (14) which remains unchanged with its mechanical connecting pieces (15) when the contact block is exchanged, thus ensures the flawless and undisturbed connection between the IC and the contact surfaces of the contact block.
  • the connecting pieces (15) are guided through additional holes (9) in the film (FIG. 2, 3).
  • the contact block (10, 8) is designed to be replaceable (FIG. 9).
  • the reinforcement plate (14) is mechanically or, for example, magnetically connected to the exchangeable contact block (10, 8) with its connecting pieces (15).
  • the reinforcement plate (14) additionally establishes the connection of contact surfaces (8) of the contact block (10, 8) to the conductor track structures (6) of the film (4). It is possible in this way to replace the contact block in the event of damaged or worn contact surfaces (8) and to ensure the perfect contacting of ICs and connection devices outside the card.
  • Chip cards on the market have the disadvantage of wearing contact surfaces.
  • a worn contact block can be exchanged for chip cards which are equipped with a contact block described in accordance with the patent. Chip cards with their extensive memory information are therefore more durable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Credit Cards Or The Like (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The description relates to a contact block (10, 8) for contacting and contactless plastic cards with embedded IC (1) which provides additional protection for the embedded ICs and may also be used as a sensitive switching component for electronic purposes. In particular, the operation as a switching component can make it possible for the contactless functions of the card to be switched on or off by a card user for the purposes of remote transmission. In addition, the contact block can be exchanged and thus contact card functions are maintained even when the contacts are worn.

Description

Kombinierte ChipkarteCombined chip card
Beschreibungdescription
Technisches Gebiet / Stand der TechnikTechnical field / state of the art
Es sind Plastikkarten als Chipkarten bekannt, welche kontaktfrei oder kontaktbehaftet mit ihren Schreib/Lesegeräten Energie und Daten austau¬ schen. Diese Karten werden für vielfache Anwendungen wie beispielsweise Telefonkarten, Gesundheitskarten, Zutrittskontrollkarten eingesetzt. Einen Überblick über solche Karten und deren Anwendungen ist in drei Ausgaben der Deutschen Fachzeitschrift Elektronik Jahrgang 93 zusammengestellt.Plastic cards are known as chip cards, which exchange energy and data with their read / write devices in a contact-free or contact-related manner. These cards are used for a variety of applications such as telephone cards, health cards, access control cards. An overview of such cards and their uses is compiled in three editions of the German trade magazine electronics year 93.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, die bekannte Chipkarte so aus- zubilden, daß ihr Kontaktblock mehrere Funktionen, nämlich eine Verbin¬ dungsfunktion, eine Schaltfunktion für die Verbindung und eine Schutz¬ funktion gegen mechanische Einwirkungen erfüllt.The invention is based on the object of designing the known chip card in such a way that its contact block fulfills several functions, namely a connection function, a switching function for the connection and a protective function against mechanical influences.
Kurze Beschreibung der Zeichnungen Diese Aufgabe wird durch die im Kennzeichnenden Teil des Patentanspru¬ ches 1 angegebenen Merkmale gelöst und anhand der Zeichnungen nach¬ folgend beschrieben:BRIEF DESCRIPTION OF THE DRAWINGS This object is achieved by the features specified in the characterizing part of patent claim 1 and described below with reference to the drawings:
FIG. 1 zeigt die beiden ICs , von denen einer als Mikroprozessor (μC) und der andere als kontaktlose Koppeleinrichtung (CCI) ausgebildet ist. Die ICs bestehen überlicherweise aus einem Chipkörper (1 ) mit Halbleiterei¬ genschaften und Anschlußkontakten (2), welche beispielsweise für Bond¬ verbindungen genutzt werden. Der CCI stellt die kontaktfreie Kopplung des μC mit seiner Umwelt her. Die Kopplung kann induktiv, kapazitiv oder auf andere kontaktfreie Weise geschehen. Die Funktionen des CCI können auch in den μC integriert sein, so daß sich eine Einzel-Chip Lösung ergibt. FIG. 2 zeigt die Unterseite einer Trägerfolie (4) mit der Leiterbahnstruktur (6) und Spulenwindungen (5) für die kontaktfreie Kopplung. Statt der Spu¬ lenwindungen könnten auch Kondensatorplatten zur kontaktfreien Kopp¬ lung auf der Folie enthalten sein. In die Folie sind an den Stellen öffnun- gen (3) enthalten, an denen die Anschlußkontakte (2) der ICs bei einem Zusammenbringen von Folie und ICs zu liegen kommen.FIG. 1 shows the two ICs, one of which is designed as a microprocessor (μC) and the other as a contactless coupling device (CCI). The ICs usually consist of a chip body (1) with semiconductor properties and connection contacts (2), which are used, for example, for bond connections. The CCI establishes the contactless coupling of the μC with its environment. The coupling can be done inductively, capacitively or in another non-contact manner. The functions of the CCI can also be integrated in the μC, so that a single-chip solution results. FIG. 2 shows the underside of a carrier film (4) with the conductor track structure (6) and coil turns (5) for the contact-free coupling. Instead of the coil turns, capacitor plates for contact-free coupling could also be contained on the film. Openings (3) are contained in the film at the points at which the connection contacts (2) of the ICs come to rest when the film and ICs are brought together.
FIG. 3 zeigt die Oberseite der Folie (4). Es sind die Öffnungen (3) und zu¬ sätzliche Folienöffnungen (9) erkennbar. Auf dieser Oberseite der Folie kommen die ICs zu liegen.FIG. 3 shows the top of the film (4). The openings (3) and additional film openings (9) can be seen. The ICs come to rest on this top side of the film.
FIG. 4 zeigt im Schnitt Folie (4) und IC (1 ). Auf der Oberseite der Folie ist ein IC (1 ) angebracht. Die Anschlußkontakte (2) sind passend zu den Öff¬ nungen (3) positioniert, so daß eine galvanische Verbindung zwischen Chip (1 ) über die Anschlußkontakte (2) durch die Öffnungen (3) mit der Leiterbahnstruktur (6) hergestellt werden kann. Die Herstellung dieser Leiterbahnstrukturen geschieht vorteilhafterweise nach einem additiven Verfahren. Es wird zunächst ein katalytisches Material als Druckmuster der Leiterverbindungen auf die Folie (4) aufgebracht. Anschließend wird in ei- nem chemischen Bad an den Stellen des katalytischen Materials ein Leiter (Kupfer, Aluminium) abgeschieden.FIG. 4 shows a section of film (4) and IC (1). An IC (1) is attached to the top of the film. The connection contacts (2) are positioned to match the openings (3), so that a galvanic connection between the chip (1) can be made via the connection contacts (2) through the openings (3) with the conductor track structure (6). These conductor track structures are advantageously produced using an additive method. A catalytic material is first applied to the film (4) as a printed pattern of the conductor connections. A conductor (copper, aluminum) is then deposited in a chemical bath at the locations of the catalytic material.
FIG. 5 zeigt den Kontaktblock in der Draufsicht, enthaltend das stabile Kernmaterial (10) mit den Kontaktflächen (8) für eine galvanische Verbin- düng mit Kartenanschlußgeräten.FIG. 5 shows a top view of the contact block, containing the stable core material (10) with the contact surfaces (8) for a galvanic connection with card connection devices.
FIG. 5a zeigt den Kontaktblock in der Seitenansicht. Das Material der Kontaktflächen (8) umschließt das Kernmaterial derart, daß zwischen der Oberseite und der Unterseite eine galvanische Verbindung entsteht. Die Stellen, welche an den Folienöffnungen (9) zu liegen kommen, sind mit leitendem Material versehen. In das Kernmaterial ist eine Aussparung (12) zur Aufnahme der ICs (1 ) eingebracht. FIG. 6 zeigt den Kontaktblock, Folie und IC in einer Figur und ist eine Schnittdarstellung und Kombination der FIG. 4 und 5. Die FIG. 6 zeigt gleichzeitig eine erste erfindungsgemäße Ausführung der Patentansprüche. Der Kontaktblock ist mit seiner Aussparung (12) über dem IC (1 ) ange¬ bracht und wirkt durch seine mechanisch stabile Ausgestaltung als Schutz vor mechanischer Einwirkung für den IC (1). Gleichzeitig stellen die galva¬ nisch leitenden Flächen (8) zwischen der Oberseite des Kontaktblockes und der Unterseite der Folie mit ihrer Leiterbahnstruktur (6) eine Verbin- düng dar. Hierzu dienen die patentgemäß angegebenen zusätzlichen Öff¬ nungen (9). Durch diese Ausgestaltung werden die Signale von der Ober¬ seite des Kontaktblockes mit der Leiterbahnstruktur verbunden und können derart an die Anschlußkontakte (2) der ICs geführt werden.FIG. 5a shows the contact block in a side view. The material of the contact surfaces (8) surrounds the core material in such a way that a galvanic connection is created between the top and the bottom. The points that come to rest on the film openings (9) are provided with conductive material. A recess (12) for receiving the ICs (1) is made in the core material. FIG. 6 shows the contact block, film and IC in one figure and is a sectional view and combination of FIG. 4 and 5. The FIG. 6 simultaneously shows a first embodiment of the claims according to the invention. The contact block is provided with its recess (12) above the IC (1) and, due to its mechanically stable design, acts as protection against mechanical influences for the IC (1). At the same time, the electrically conductive surfaces (8) between the upper side of the contact block and the lower side of the film with their conductor track structure (6) provide a connection. The additional openings (9) specified according to the patent serve this purpose. As a result of this configuration, the signals are connected from the upper side of the contact block to the conductor track structure and can thus be routed to the connection contacts (2) of the ICs.
FIG. 7 zeigt gemäß Anspruch 4 eine Trennung von IC (1 ) und Kontaktblock (8, 10).FIG. 7 shows according to claim 4 a separation of IC (1) and contact block (8, 10).
FIG. 8 zeigt die Einbettung der Elemente aus FIG. 6 in das Plastikmaterial eines Kartenkörpers (11 ).FIG. 8 shows the embedding of the elements from FIG. 6 in the plastic material of a card body (11).
FIG. 9 zeigt die Einbettung der Elemente aus FIG. 6 in das Plastikmaterial eines Kartenkörpers (11 ). Zusätzlich ist gemäß Anspruch 5 ein Verstär- kungsplättchen (14) in den Kartenkörper eingebracht.FIG. 9 shows the embedding of the elements from FIG. 6 in the plastic material of a card body (11). In addition, according to claim 5, a reinforcement plate (14) is introduced into the card body.
Bester Weg zur Ausführung der ErfindungBest way to carry out the invention
Ansprüche 1 , 2, 3 werden anhand der Figuren erläutert: Ein mechanisch stabiler Kontaktblock (10, 8) enthält in seiner Aussparung ICs, welche durch die Stabilität des Kontaktblockes mechanisch geschützt sind. Der Kontaktblock enthält auf seiner Oberseite galvanisch leitendes Material, welche auf der Oberseite als Kontaktflächen (8) für kontaktbehaf¬ tete Chipkarten ausgeführt sind. Die Kontaktflächen dienen zur Verbindung zwischen Anschlußgeräten außerhalb der Karte und den ICs, welche in der Aussparung enthalten sind. Geschützt unter dem Kontaktblock sitzt ein weiterer IC (CCI), der zur kontaktlosen Kopplung dient und mit Spulen (5) oder Kondensatoren verbunden ist. Dieser zweite IC (CCI) stellt die kontak- freie Kopplung mit Anschlußgeräten außerhalb der Chipkarte her. Indem die Oberfläche des Kontaktblockes gleichzeitig beispielsweise als kapazi¬ tiv empfindliche Fläche mit der Basis eines Feldeffektransistors im zweiten IC verbunden ist, dient sie als Schalter bei kapazitiver Ladungsänderung der Oberfläche des Kontaktblockes. Damit erfüllt der Kontaktblock die zu¬ sätzliche Funktion eines Schalters. Mit Hilfe des Schalters können bei- spielsweise kontaktfreie Funktionen der Karte von dem Inhaber der Karte ein oder ausgeschaltet werden. Dies kann zweckmäßig sein, wenn die kontaktfreie Fernabfrage ausgeschlossen sein soll.Claims 1, 2, 3 are explained with reference to the figures: A mechanically stable contact block (10, 8) contains ICs in its recess, which are mechanically protected by the stability of the contact block. The upper side of the contact block contains galvanically conductive material, which are designed on the upper side as contact surfaces (8) for contact-type chip cards. The contact areas serve to connect the connection devices outside the card and the ICs, which are in the recess are included. Another IC (CCI), which is used for contactless coupling and is connected to coils (5) or capacitors, sits protected under the contact block. This second IC (CCI) establishes contact-free coupling with connection devices outside the chip card. By simultaneously connecting the surface of the contact block, for example as a capacitively sensitive surface, to the base of a field effect transistor in the second IC, it serves as a switch in the event of a capacitive charge change in the surface of the contact block. The contact block thus fulfills the additional function of a switch. With the help of the switch, for example, contact-free functions of the card can be switched on or off by the card holder. This can be useful if contactless remote access is to be excluded.
Anspruch 4 wird anhand der Figuren erläutert. Aus FIG. 7 ist ein Ausführungsbeispiel ersichtlich, bei dem ICs und Kon¬ taktblock räumlich getrennt angeordnet sind. Der Kontaktblock stellt keine zusätzliche Sicherheit für die ICs (1 ) mehr dar, kann aber weiterhin als ein Schalter genutzt werden, der sich an den Stellen befindet, an denen übli¬ cherweise die Kontaktflächen bei kontaktbehafteten Karten sitzen.Claim 4 is explained with reference to the figures. From FIG. 7 shows an embodiment in which ICs and contact block are arranged spatially separated. The contact block no longer represents additional security for the ICs (1), but can still be used as a switch which is located at the places where the contact surfaces usually sit on cards with contacts.
Anspruch 5 wird anhand der Figuren erläutert.Claim 5 is explained with reference to the figures.
Unterhalb der Folie (4) und der ICs (1) ist ein Verstärkungsplättchen (14) angebracht, welches die ungeschützte Seite der ICs gegen mechanische Einwirkungen schützt (FIG. 9). Zur Aufrechterhaltung eines mechanischen Abstandes bei Druckeinwirkung auf den Kontaktblock sind mechanische Verbindungsstücke (15) fest auf dem Verstärkunsplättchen montiert. Auf diesen Verbindungsstücken (15) liegen die unteren Kontaktflächen des Kontaktblockes, womit galvanisch leitende Verbindungen zwischen Kon¬ taktflächen des Kontaktblockes und Verstärkungsplättchen gegeben ist. Zusätzlich kann das Verstärkungsplättchen diese Verbindung weiter zu Leiterbahnen der Folie weiterführen, womit eine Verbindung zwischen Kontaktflächen des Kontaktblockes und IC hergestellt ist. Damit ergibt sich der Vorteil, daß der Kontaktblock austauschbar angeordnet werden kann, da die Verbindung zwischen Kontaktfeldern des Kontaktblockes und IC nicht mehr durch das Galvanisierungsmaterial hergestellt wird, sondern durch ein Verbindungselement zwischen Kontaktblock und Verstärkungs¬ plättchen (14). Das Verstärkungsplättchen (14) welches mit seinen me¬ chanischen Verbindungsstücken (15) bei einem Kontaktblockaustausch un¬ verändert bleibt, gewährleistet somit die einwandfreie und ungestörte Ver¬ bindung zwischen IC und Kontaktflächen des Kontaktblockes. Die Verbin¬ dungsstücke (15) sind durch zusätzliche Löcher (9) in der Folie (FIG. 2, 3) geführt.Under the film (4) and the ICs (1) there is a reinforcement plate (14) which protects the unprotected side of the ICs against mechanical influences (FIG. 9). To maintain a mechanical distance when pressure is exerted on the contact block, mechanical connecting pieces (15) are firmly mounted on the reinforcing plate. The lower contact surfaces of the contact block lie on these connecting pieces (15), thus providing galvanically conductive connections between the contact surfaces of the contact block and the reinforcement plate. In addition, the reinforcement plate can continue this connection to conductor tracks of the film, thus establishing a connection between the contact surfaces of the contact block and the IC. This has the advantage that the contact block can be arranged interchangeably, since the connection between contact fields of the contact block and IC is no longer produced by the galvanizing material, but by a connecting element between the contact block and the reinforcement plate (14). The reinforcement plate (14), which remains unchanged with its mechanical connecting pieces (15) when the contact block is exchanged, thus ensures the flawless and undisturbed connection between the IC and the contact surfaces of the contact block. The connecting pieces (15) are guided through additional holes (9) in the film (FIG. 2, 3).
Anspruch 6 wird anhand der Figuren erläutert.Claim 6 is explained on the basis of the figures.
Der Kontaktblock (10, 8) ist austauschbar ausgeführt (FIG. 9). Zu diesem Zweck ist das Verstärkungsplättchen (14) mit seinen Verbindungsstücken (15) mechanisch oder beispielsweise magnetisch mit dem austauschbaren Kontaktblock (10, 8) verbunden. Das Verstärkungsplättchen (14) stellt zu¬ sätzlich die Verbindung von Kontaktflächen (8) des Kontaktblockes (10, 8) zu den Leiterbahnstrukturen (6) der Folie (4) her. Es ist derart möglich, den Kontaktblock im Falle beschädigter oder abgenutzter Kontaktflächen (8) auszutauschen und die einwandfreie Kontakttierung von ICs und An- Schlußgeräten außerhalb der Karte zu gewährleisten.The contact block (10, 8) is designed to be replaceable (FIG. 9). For this purpose, the reinforcement plate (14) is mechanically or, for example, magnetically connected to the exchangeable contact block (10, 8) with its connecting pieces (15). The reinforcement plate (14) additionally establishes the connection of contact surfaces (8) of the contact block (10, 8) to the conductor track structures (6) of the film (4). It is possible in this way to replace the contact block in the event of damaged or worn contact surfaces (8) and to ensure the perfect contacting of ICs and connection devices outside the card.
Gewerbliche AnwendbarkeitIndustrial applicability
Im Markt befindliche Chipkarten haben den Nachteil der Abnutzung von Kontaktflächen. Bei Chipkarten welche mit einem patentgemäß beschrie- benen Kontaktblock ausgestattet sind, kann ein abgenutzter Kontaktblock ausgetauscht werden. Chipkarten mit ihren umfangreichen Speicherinfor¬ mationen sind somit länger haltbar. Chip cards on the market have the disadvantage of wearing contact surfaces. A worn contact block can be exchanged for chip cards which are equipped with a contact block described in accordance with the patent. Chip cards with their extensive memory information are therefore more durable.

Claims

Patentansprüche: Claims:
1. Chipkarte mit einem Kontaktblock zur wahlfreien Kopplung eines als Mi¬ kroprozessor ausgebildeten ersten IC (μC) mit einem Anschlußgerät über Kontakte (nach ISO 7816) oder kontaktfreie Elemente (nach ISO 10536), dadurch gekennzeichnet, daß der Kontaktblock (10, 8)1. Chip card with a contact block for optional coupling of a first IC (μC) designed as a microprocessor with a connecting device via contacts (according to ISO 7816) or contact-free elements (according to ISO 10536), characterized in that the contact block (10, 8)
- Anschlußkontakte (2) zur galvanischen Verbindung des ersten IC (μC) mit dem Anschlußgerät aufweist,Has connection contacts (2) for the galvanic connection of the first IC (μC) to the connection device,
- einen als kontaktlose Kopplungseinrichtung ausgebildeten zweiten IC (CCI) zur kontaktlosen Verbindung des ersten IC (μC) mit dem An¬ schlußgerät beinhaltet,contains a second IC (CCI) designed as a contactless coupling device for contactless connection of the first IC (μC) to the connection device,
- die beiden IC (μC + CCI) zum Schutz gegen mechanische Einwirkungen umschließt, und- encloses the two IC (μC + CCI) for protection against mechanical influences, and
- als auf physikalische Einwirkungen wie Druck, elektrische Felder etc. empfindlicher Sensor ausgebildet ist, dessen Ausgangssignal den ersten IC (μC) auf die gewünschte Kopplung schaltet.- Is designed as a sensor sensitive to physical influences such as pressure, electrical fields, etc., the output signal of which switches the first IC (μC) to the desired coupling.
2. Chipkarte nach Anspruch 1, dadurch gekennzeichnet, daß der Kon¬ taktblock (10, 8) aus einem stabilem Kernmateria! (10) besteht, weiches an einer Oberseite galvanisch leitende Kontaktflächen (8) enthält, die von die¬ ser Oberseite des Kontaktblockes bis zu Stellen auf der gegenüberliegen¬ den Unterseite reichen, an denen in einer Trägerfolie (4) zusätzliche Öff¬ nungen (9, 13) enthalten sind, durch die eine galvanische Verbindung durch die Trägerfolie (4) zu einer Leiterbahnstruktur (6) auf der, dem Kon- taktblock (10, 8) gegenüberliegenden Folienseite besteht.2. Chip card according to claim 1, characterized in that the Kon¬ contact block (10, 8) from a stable core material! (10), which contains galvanically conductive contact surfaces (8) on an upper side, which extend from this upper side of the contact block to locations on the opposite underside at which additional openings (9 , 13), by means of which there is a galvanic connection through the carrier film (4) to a conductor track structure (6) on the side of the film opposite the contact block (10, 8).
ERSATZBLATT REPLACEMENT LEAF
3. Chipkarte nach Anspruch 2, dadurch gekennzeichnet, daß der Kon¬ taktblock (10, 8) an seiner Unterseite eine Aussparung (12) enthält, welche zur Aufnahme von ICs dient.3. Chip card according to claim 2, characterized in that the Kon¬ contact block (10, 8) contains on its underside a recess (12) which serves to hold ICs.
4. Chipkarte nach einem der Ansprüche 1 bis 3, dadurch gekennzeich¬ net, daß der Kontaktblock getrennt von den ICs auf der Folie (4) unterge¬ bracht ist und zur Herstellung einer galvanischen Verbindung zwischen dem Anschlußgerät und dem ersten IC (μC) dient..4. Chip card according to one of claims 1 to 3, characterized gekennzeich¬ net that the contact block is housed separately from the ICs on the film (4) and is used to establish a galvanic connection between the connection device and the first IC (μC) ..
5. Chipkarte nach einem derAnsprüche 1 bis 4, dadurch gekennzeich¬ net, daß ein mechanisch stabiles Verstärkungs-Plättchen (14) zum Schutz gegen mechanische äußere Einflüsse auf die ICs (μC und CCI) auf der Seite der Folie (4) angebracht ist, welche dem Kontaktblock (10, 8) gegen¬ überliegt.5. Chip card according to one of claims 1 to 4, characterized in that a mechanically stable reinforcement plate (14) for protection against mechanical external influences on the ICs (μC and CCI) is attached to the side of the film (4), which is opposite the contact block (10, 8).
6. Chipkarte nach einem der Ansprüche 1 bis 5, dadurch gekennzeich¬ net, daß der Kontaktblock (10, 8) mechanisch austauschbar ist, indem eine mechanische Verbindung über Verbindungsstücke (15) zu einem stabilen Verstärkungs-Plättchen (14) durch Öffnungen (9) in der Folie (4) vorhan- den ist, wobei diese Verbindungsstücke (15) eine galvanische Verbindung zwischen den Kontaktflächen (8) des Kontaktblockes und dem stabilen Verstärkungs-Plättchen (14) herstellen und das stabile Verstärkungs- Plättchen Leiterbahnstrukturen (6) enthält, mit denen die richtig zugeordne¬ te Verbindung zwischen den Kontaktflächen (8) und den Leiterbahnstruktu- ren (6) der Folie (4) hergestellt werden, wobei die mechanische Lösung und Anheftung des Kontaktblockes an die Verbindungsstücke durch ma¬ nuelle Betätigung erfolgen kann, so daß bei Verschleiß der Kontaktflächen (8) der Kontaktblock erneuert werden kann und die Funktion der ICs nach Austausch des Kontaktblockes gewährleistet ist. 6. Chip card according to one of claims 1 to 5, characterized gekennzeich¬ net that the contact block (10, 8) is mechanically interchangeable by a mechanical connection via connectors (15) to a stable reinforcement plate (14) through openings (9 ) is present in the film (4), these connecting pieces (15) producing a galvanic connection between the contact surfaces (8) of the contact block and the stable reinforcement plate (14) and the stable reinforcement plate containing interconnect structures (6) with which the correctly assigned connection between the contact surfaces (8) and the conductor track structures (6) of the film (4) is produced, the mechanical release and attachment of the contact block to the connecting pieces being able to take place by manual actuation, so that if the contact surfaces (8) wear, the contact block can be renewed and the function of the ICs is guaranteed after the contact block has been replaced.
EP95907546A 1994-02-08 1995-01-28 Combined chip card Withdrawn EP0744061A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (3)

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DE4403753 1994-02-08
DE4403753A DE4403753C1 (en) 1994-02-08 1994-02-08 Combined chip card
PCT/DE1995/000119 WO1995022121A1 (en) 1994-02-08 1995-01-28 Combined chip card

Related Child Applications (1)

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Publications (1)

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EP0744061A1 true EP0744061A1 (en) 1996-11-27

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EP (2) EP0744061A1 (en)
JP (1) JPH09507931A (en)
KR (1) KR970700887A (en)
CN (1) CN1140502A (en)
AU (1) AU1574395A (en)
DE (1) DE4403753C1 (en)
WO (1) WO1995022121A1 (en)

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KR970700887A (en) 1997-02-12
WO1995022121A1 (en) 1995-08-17
EP0751478A2 (en) 1997-01-02
CN1140502A (en) 1997-01-15
JPH09507931A (en) 1997-08-12
DE4403753C1 (en) 1995-07-20
EP0751478A3 (en) 2001-05-16
US5773812A (en) 1998-06-30
AU1574395A (en) 1995-08-29

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