EP1590854A2 - Antenne et procede de fabrication - Google Patents
Antenne et procede de fabricationInfo
- Publication number
- EP1590854A2 EP1590854A2 EP04700269A EP04700269A EP1590854A2 EP 1590854 A2 EP1590854 A2 EP 1590854A2 EP 04700269 A EP04700269 A EP 04700269A EP 04700269 A EP04700269 A EP 04700269A EP 1590854 A2 EP1590854 A2 EP 1590854A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- track
- notch
- antenna
- strip
- insulating strip
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Definitions
- the invention relates to an antenna and a method of manufacturing such an antenna.
- the invention is more particularly intended for the field of smart cards, such as for example the field of contactless smart cards.
- the invention could also be applied in other fields, such as for example the field of radio frequency identification labels (or RFID).
- a contactless smart card has at least one antenna.
- An antenna can be connected to an electronic chip.
- the antenna forms a printed circuit or an electrically conductive track which consists of at least one turn.
- a track can be formed by a series of turns arranged one after the other.
- the electrically conductive track begins with a first pad and ends with a second pad.
- the antenna and the electronic chip being intended to connect with each other, and the electronic chip being of very small dimension compared to the antenna, the connection of the antenna with the chip is carried out with a pad auxiliary and the second pad, which auxiliary pad being located near the second pad.
- the auxiliary pad is connected to the first pad by a conductive connector or electrical connector, which connector emerging from the first pad and which connector being intended to cross the electrically conductive track to be connected to the auxiliary pad.
- To insulate the conductive connector from the track it is known to place an insulating strip between the track and the conductive connector.
- a method of manufacturing an antenna by screen printing is known. The antenna is then produced in three successive stages.
- the first step consists in screen printing the turns of the antenna on a support constituted by an insulating dielectric substrate. In this same step is also printed a first pad, a second pad and an auxiliary pad.
- the second step of the process consists in depositing, by screen printing, a dielectric ink constituting the insulating strip above the turns.
- This manufacturing process can then have the drawback of obtaining a conductive connection liable to be weakened by possible torsional or bending forces which could occur at a location where there is a superposition of the connection and of the insulating strip and around this same overlay.
- the connector may be liable to come off the insulating strip as a result of these efforts.
- a discontinuity in the electrical properties in the track, or even a stop in the electrical conductivity in the antenna may occur. The performance of the antenna may be greatly disturbed, or may even cancel out.
- D1 another method of manufacturing an antenna is known.
- a method of manufacturing a planar antenna is described following an application of an electrically conductive ink on the dielectric support by means of a gravure process followed by a metallization of the ink. deposited electrolytically or chemically.
- This manufacturing process includes the same steps as those previously mentioned in the manufacturing process using the screen printing technique.
- This technique involving the gravure technique has the advantage of printing ink layers of relatively thinner thicknesses.
- the connector was always caused to be weakened by possible friction at a place where the superposition of the connector and the insulating strip is situated and around this same insulating strip.
- the invention provides for facilitating the printing of the fitting or of the track on the insulating tape by printing on the insulating tape at least one first notch. intended to receive the connection or the track.
- This first notch has a slope at the bottom of this same notch, connecting one face of the strip to another face of the strip.
- the insulating strip can also comprise at least a second notch having a slope inversely oriented with respect to the first notch. The first notch and the second notch are made in such a way so that they allow a passage of the fitting or the track or at least one conductive turn.
- the first notch and / or the second notch make it possible to facilitate the deposition of the conductive ink on this same insulating strip.
- the insulating strip can also be produced in one or more applications of dielectric ink.
- the invention provides for producing the insulating strip forming a stepped pyramid according to a longitudinal section of the antenna passing at the location of the superposition of the track and of the fitting.
- the stepped pyramid shape of the insulating strip also makes it easier to deposit the conductive ink on this same insulating strip.
- the invention can be applied to printing techniques requiring metallization of the product thus printed, such as the gravure technique, offset printing, screen printing or the electrostatic printing technique.
- the invention therefore relates to an antenna comprising a dielectric support, an electrically conductive track printed on the support, which track begins with a first pad and ends with a second pad, the first pad being connected to an auxiliary pad by means of a conductive connector, which auxiliary stud being located near the second stud and which conductive connector being intended to cross the track while being isolated from the track by an insulating strip interposed by superposition between the track and the connector , characterized in that - the insulating strip is printed with at least a first notch intended to receive the track or the fitting, and comprising a slope at the bottom of the notch, connecting one face of the strip to another face of the bandaged.
- the invention also provides a method of manufacturing an antenna in which the track or the connection can be directly printed in a single step and continuously on the dielectric support while passing without interruption above the insulating strip.
- the invention therefore relates to a method of manufacturing an antenna comprising a dielectric support, an electrically conductive track printed on the support, which track begins with a first pad and ends with a second pad, the first pad being connected to an auxiliary stud by means of a conductive connector, which auxiliary stud being located near the second stud and which conductive connector being intended to cross the track while being isolated from the track by an insulating strip interposed by superposition between the track and the connector , characterized in that it comprises the following steps carried out in the following order:
- FIG. 1 a schematic representation of an antenna according to the invention
- FIG. 2 a perspective representation of an insulating strip, according to the invention
- FIG. 3 a longitudinal section of an antenna in a direction of formation of a track, according to the invention
- FIG. 4a to 4c a schematic representation of a method of manufacturing an antenna, according to the invention.
- the conductive connector 7 is intended to cross the track 4.
- an insulating strip 8 is interposed by superposition between the track and the connection 7. The insulating strip 8 then prevents the conductive connection 7 from being in direct contact with the track 4.
- the second notch 13 can be made at a second location on the insulating strip 8 intended to be in last contact with a turn 14 or with the track 4.
- the a first notch 12 and the second notch 13 can be made at a location on the strip 8 intended to be first in contact with the connector 7 and at another location on the strip 8 intended to be last in contact with the connector.
- the insulating strip 8 is formed by three first notches such as 12, and by three second notches such as 13.
- the first notches 12 and the second notches 13 are produced in such a way that they allow the passage of track 4 or at least one turn 14.
- the first notch 12 and the second notch 13 can advantageously be made in correspondence of one another in a direction of formation of track 4.
- the direction of formation at least one turn 14 or turn 4 is represented by an arrow in each of Figures 2 and 3.
- the first notch 12 and / or the second notch 13 are each intended to accommodate a single turn 14 so as to make the passage of each turn more reliable.
- the method of manufacturing this antenna 1 on the dielectric support 3 can advantageously be carried out in the following manner, FIGS. 4a to 4c.
- the conductive connector 7 is first printed on the dielectric support 3 with a conductive ink of electricity, figure 4a.
- the conductive ink used may contain electrically conductive elements such as copper, gold, silver.
- the electrically conductive ink is that for example commonly used in gravure printing techniques.
- the insulating strip 8 is printed on the conductive connector 7 with an insulating dielectric ink, FIG. 4b.
- the track 4 and the connector 7 can then be metallized so as to reduce an electrical resistance of the antenna.
- the antenna can be metallized electrolytically or chemically.
- the dielectric ink can be applied in two or four applications.
- Each of the applications is carried out in a direction of formation of the track or in a direction of formation of the fitting 7.
- the applications are carried out one after the other with an increasingly shorter length of the applications and in such a way that the a section is obtained in the form of a stepped pyramid of the insulating strip 8 in a direction of formation of the track 4 or in a direction of formation of the connector 7.
- FIG. 3 illustrates an insulating strip 8 produced in four applications of dielectric ink while forming a stepped pyramid according to a longitudinal section of the antenna 1 at a place where the track 4 and the connector 7 are superimposed.
- the conductive connector 7 comprises a first external portion 15, a second external portion 16 and a central portion 17.
- the first external portion 15 and the second external portion 16 are interconnected by the central portion 17.
- the first external portion 15 is connected to the first pad 5 and the second external portion 16 is connected to the auxiliary pad 19.
- the central portion 17 of the conductive connector 7 corresponds to a portion of the conductive connector 7 located between the dielectric support 3 and the insulating strip 8.
- this central portion 17 is intended to be non-metallized.
- the antenna thus produced comprises a single portion of conductive connector located in contact with the insulating strip which will not be metallized. It is possible to compensate for the absence of metallization on this portion of conductive connection by widening at least this central portion 17 of the conductive connection 7, as shown in dotted lines in FIGS. 2 and 3. One could also widen the conductive connection 7 in all of it, that is, we could widen the central portion 17, the first portion outer 15 and the second outer portion 16 of the conductive connector 7, Figure 2.
- the insulating strip 8 is then increased in size accordingly so that the conductive connector 7 is not in contact with the track 4.
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)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0300942 | 2003-01-24 | ||
FR0300942A FR2850490A1 (fr) | 2003-01-24 | 2003-01-24 | Antenne et procede de fabrication |
PCT/FR2004/050001 WO2004068632A2 (fr) | 2003-01-24 | 2004-01-06 | Antenne et procede de fabrication |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1590854A2 true EP1590854A2 (fr) | 2005-11-02 |
Family
ID=32669283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04700269A Withdrawn EP1590854A2 (fr) | 2003-01-24 | 2004-01-06 | Antenne et procede de fabrication |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060164321A1 (fr) |
EP (1) | EP1590854A2 (fr) |
JP (1) | JP2006518137A (fr) |
CN (1) | CN1742404A (fr) |
FR (1) | FR2850490A1 (fr) |
WO (1) | WO2004068632A2 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7728728B2 (en) | 2005-09-28 | 2010-06-01 | International Business Machines Corporation | Method and systems for collecting user's choices using RFIDs |
CA2563634A1 (fr) | 2006-10-12 | 2008-04-12 | Ibm Canada Limited - Ibm Canada Limitee | Systeme et methode pour la fourniture de securite au moyen d'identification par radiofrequence |
CN101335376B (zh) * | 2008-08-06 | 2012-05-30 | 厦门大学 | 一种电子标签天线的制备方法 |
CN101571929B (zh) * | 2009-06-09 | 2011-09-28 | 上海东方磁卡工程有限公司 | 一种在基材上植入线圈引出线的方法 |
JP5501114B2 (ja) * | 2010-06-25 | 2014-05-21 | 東洋アルミニウム株式会社 | Icカード・タグ用アンテナ回路構成体とその製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9222460D0 (en) * | 1992-10-26 | 1992-12-09 | Hughes Microelectronics Europa | Radio frequency baggage tag |
GB2279907B (en) * | 1993-07-02 | 1996-11-06 | Gec Avery Ltd | An integrated circuit card |
US5541399A (en) * | 1994-09-30 | 1996-07-30 | Palomar Technologies Corporation | RF transponder with resonant crossover antenna coil |
EP0917688B1 (fr) * | 1996-08-02 | 2000-06-28 | SCHLUMBERGER Systèmes | Carte a circuit integre a connexion mixte |
FR2753305B1 (fr) * | 1996-09-12 | 1998-11-06 | Schlumberger Ind Sa | Procede de fabrication d'un ensemble de modules electroniques pour cartes a memoire sans contact |
JPH11175676A (ja) * | 1997-12-12 | 1999-07-02 | Hitachi Maxell Ltd | 非接触式icカード |
FR2787609B1 (fr) * | 1998-12-21 | 2001-02-09 | Gemplus Card Int | Procede de fabrication de carte a puce sans contact |
FR2796183B1 (fr) * | 1999-07-07 | 2001-09-28 | A S K | Ticket d'acces sans contact et son procede de fabrication |
JP2001202489A (ja) * | 2000-01-20 | 2001-07-27 | Denso Corp | Icカードおよびその製造方法 |
WO2001078908A1 (fr) * | 2000-04-04 | 2001-10-25 | Parlex Corporation | Procede d'assemblage ultra rapide ce puces retournees |
FR2825228B1 (fr) * | 2001-05-25 | 2003-09-19 | Framatome Connectors Int | Procede de fabrication d'un circuit imprime et antenne planaire fabriquee avec celui-ci |
-
2003
- 2003-01-24 FR FR0300942A patent/FR2850490A1/fr active Pending
-
2004
- 2004-01-06 EP EP04700269A patent/EP1590854A2/fr not_active Withdrawn
- 2004-01-06 WO PCT/FR2004/050001 patent/WO2004068632A2/fr active Application Filing
- 2004-01-06 US US10/540,278 patent/US20060164321A1/en not_active Abandoned
- 2004-01-06 CN CNA2004800027136A patent/CN1742404A/zh active Pending
- 2004-01-06 JP JP2006502165A patent/JP2006518137A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2004068632A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004068632A3 (fr) | 2004-09-10 |
WO2004068632A2 (fr) | 2004-08-12 |
CN1742404A (zh) | 2006-03-01 |
FR2850490A1 (fr) | 2004-07-30 |
US20060164321A1 (en) | 2006-07-27 |
JP2006518137A (ja) | 2006-08-03 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20050824 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
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DAX | Request for extension of the european patent (deleted) | ||
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GOSSART, SYLVAIN Inventor name: MATHIEU, CHRISTOPHE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GOSSART, SYLVAIN Inventor name: MATHIEU, CHRISTOPHE |
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17Q | First examination report despatched |
Effective date: 20080131 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20080611 |