Classifications

• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06K19/0701—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 at least one of the integrated circuit chips comprising an arrangement for power management
  • G06K19/0702—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 at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
  • G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
  • G06K19/07707—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual the visual interface being a display, e.g. LCD or electronic ink
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06K19/0772—Physical layout of the record carrier
  • G06K19/07722—Physical layout of the record carrier the record carrier being multilayered, e.g. laminated sheets
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; 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
  • G06K19/07758—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 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
  • G06K19/0776—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 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
  • H02J7/70—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction
  • H02J7/751—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2220/00—Batteries for particular applications
  • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the invention relates to a method of manufacturing an electronic device incorporating an electronic / electrical circuit buried in a body of the device and implementing a data exchange step with the buried device.
• the invention is aimed primarily at display devices or display modules such as smart cards including banking, implementing a display of variable information as a function of time given by a powered time base available in the device.
• Cards with an integrated battery are already known, so that the card can perform various functions requiring an internal source of energy, making it possible to ensure the operation of the various components or electronic modules independently of any connection, material or not, with a external source of energy.
• a battery can also, for example, compensate for a lack of energy in the case of an immaterial connection, by electromagnetic coupling, for example in the case of cards called "contactless" where an integrated antenna is used on the card to transmit both the energy necessary for the operation of the card and the information exchanged between the card and a card reader.
• a smart card display means for example for displaying a password for single use (known by the acronym OTP for one time pass ord) or a verification value (dCW for dynamic code verification value).
• a known method of manufacturing cards comprising a display screen consists of assembling on the same substrate the various electronic components of the card, such as a display, a battery, a microcontroller, etc. and inserting the module thus formed into a cavity formed in a card body. Then resin is injected to fill the free spaces between the components, and between the components and the edges of the cavity, and the surface sheets are arranged on both sides of the body and laminated with it to ensure their final assembly, thereby integrating in said body and between the surface layers said electronic module and its components.
• the electronic circuit can be connected to an electrical communication interface with the outside via an ISO 7816 contact module type smart card, or via a radio frequency antenna contactless interface .
• This method makes it possible to exchange data after assembly to customize, program and / or test, electrically adjust the electronic circuit.
• the use of an electrical communication interface via the ISO 7816 contact module has the disadvantage of requiring a more complex circuit board to be produced and integrated.
• the use of radiofrequency communication requires in particular a contactless chip and a radio frequency antenna that increase the cost of manufacturing the final device.
• the invention aims to solve the aforementioned drawbacks.
• the invention proposes a simple and inexpensive method of manufacturing an electronic / electrical circuit device buried in a body of the device and requiring a step of data exchange after being buried.
• the invention makes it possible to solve simply and economically the problem of electrical adjustment of an RTC clock after incorporation and connection of a display module to a battery inside a device including a smart card.
• the subject of the invention is a method of manufacturing an electronic device comprising an electronic / electrical circuit.
• the method is distinguished in that it comprises the following steps:
• the electronic / electrical circuit comprises electrical data exchange terminals tracks extending inside the cavity and not outside;
• the electronic / electrical circuit comprises electrical data transfer tracks / terminals extending outside the cavity;
• the display is inserted into the cavity and connected to the electronic / electrical circuit after said data exchange step;
• At least a portion of the electrical data exchange tracks / terminals opening out of the cavity are cut after electrical customization
• the display and the electronic / electrical circuit connected together are inserted into the cavity and connected to the battery;
• the electronic circuit comprises a real time clock (HTR) and in that the data exchange step comprises a step of setting or setting time clock.
• HTTP real time clock
• the electronic / electrical circuit has a larger surface area relative to that of the display so as to leave said tracks / electrical data exchange terminals accessible in the cavity;
• a space (E) located above the tracks / electrical terminals (13) is filled with filler.
• the invention also relates to a device corresponding to the method above.
• FIG. 1 illustrates a first step of providing / producing a device according to the invention with a receiving cavity of an electronic display as an electrical / electronic circuit;
• FIG. 2 illustrates a second display control electronic circuit transfer step in the device of the previous figure
• FIG. 3 illustrates a third data exchange step (electrical customization / time setting, programming test, etc.) with the electronic circuit of the preceding figure;
• FIG. 4 illustrates a fourth step of posting and connecting a display to the electronic circuit illustrated in the previous figure
• FIG. 5 illustrates a second step of an alternative mode showing a transfer and connection of a complete display (with control circuit including RTC clock circuit) to the battery of the device illustrated in FIG. 1;
• Figure 6 illustrates a third step of the alternative mode showing a data exchange (electrical customization / time setting / programming);
• Figure 7 illustrates a fourth step of the alternative mode showing an elimination of the contact pads for data exchange (electrical customization / time setting, programming ).
• Figures 8, 9 and 10 illustrate steps of a third embodiment of the method of manufacturing an electronic device according to the invention.
• the method comprises a first step providing / producing a device 1A according to the invention with a cavity 3 for receiving an electrical and / or electronic module M 5) and with a battery 6.
• the device 1A in the example is a smart card and the electrical / electronic module is a display module or electronic display M (4, 5).
• the device 1A, 1B can be any electronic device such as an electronic passport, a USB key, a PDA device, a mass memory card, any object having an electronic function buried in the body of the object.
• the buried module M (4, 5) can be any electrical / electronic module such as a fingerprint capture module, a temperature sensor, a display, etc.
• This step is formed in particular in two stages comprising the formation of a support body C comprising a battery inside, in particular by lamination of sheets or polymer layers and / or adhesive 7, 8, 9 respectively for front face, for front back and middle layer.
• this step can be performed by injecting material around a battery 6.
• the method also comprises a step of producing a cavity 3 opening preferably at the rear surface 10 of the support body C, said cavity revealing connection terminals 11 of the battery.
• a cavity 3 is made by machining to reveal the ranges / interconnection terminals 11 of the battery. These terminals are made to interconnect corresponding pads or terminals of the module M.
• the cavity can be made during the eventual molding of the body of the device 1A, 1B in a single step with a molding core corresponding substantially to the dimensions of the cavity and leaving or reserving the cavity 3.
• this embodiment provides a connection of an electronic circuit 4 to the battery via the terminals in said cavity.
• the drops of anisotropic conductive adhesive (not shown) have been deposited on the ranges / interconnection terminals 11 of the battery or circuit 4.
• Other modes of connection may be considered as ACF technology (anisotropic conductive adhesive) or conductive silicone).
• the module here has a size / dimensions comparable / adjusted substantially to the dimensions of the cavity.
• the electronic circuit is here a printed circuit 4 made on a thin and flexible substrate of less than about 200 ⁇ .
• the thickness of the flexible substrate may be equal to about ⁇ .
• the circuit here comprises at least one real-time clock (HTR or RTC). It can include any other function including a control function / control of the information display on a screen / display.
• HTR real-time clock
• the method comprises a data exchange step (personalization, programming of the electronic circuit, time setting, etc.) by electrical contact illustrated in FIG.
• the electronic circuit here comprises accessible tracks / pads or electrical interconnection terminals 13 which extend inside the cavity 3 to perform the data exchange.
• the method provides for at least one time setting or setting of the clock after that it is connected to the battery.
• Data exchange is preferably carried out here by electrical contact of data transfer needles 14 on the data exchange terminals 13 provided for this purpose.
• the device 1A can be moved to a data exchange station after a partial embedding station of a portion of the electronic / electrical module.
• a complementary portion 5 of the electronic / electrical module M is inserted into the cavity.
• the display 5 itself (without the clock, the control / control chip) which is inserted into the cavity and connected to the electronic circuit 4 after said data exchange step by electrical contact.
• connection can be made as before with anisotropic conductive adhesive.
• the screen may be generally connected to the flexible circuit by another type of conductive adhesive not necessarily anisotropic.
• the method of the invention can also be implemented according to an alternative illustrated in FIGS. 1, 5, 6, 7.
• This alternative may have in common the steps of the first mode illustrated and described in connection with FIG.
• This alternative may differ in that the electronic / electrical circuit 4 comprises data exchange tracks (transfer, programming, etc.) 18 extending outside the cavity 3 of the device 1B.
• the electronic module M is complete and comprises interconnection tracks / contact pads 18 which extend out of the cavity.
• the complete electronic module includes interconnection tracks / contact pads 18 which extend from the printed circuit 4 along the wall of the cavity 3 to emerge at the surface 10 of the body of the device.
• These electrically conductive tracks / terminals can be folded preferably substantially at right angles to fit the surface of the body of the device.
• the invention preferably provides a press or tool for folding or shaping the tracks / terminals so that they keep themselves folded against the outer surface 10 of the device.
• the tracks are here carried by a thin substrate but could be freely available without substrate at least at the level of the tracks 18 of data exchange.
• the terminals or tracks 18 are oriented outwards when they are folded flat against the surface of the device body with the aid of the press or folding tool 15.
• the electronic / electrical module M is complete for inserting compared to the previous mode (that is to say that in the example, the parts 4 and 5 are already pre-assembled and pre-assembled.
• This module M could have been inserted in two parts as in the first mode
• the electronic circuit 4 comprises at least the clock HTR and is fixed to the display 5.
• the module M can also include a chip of integrated circuit (not shown) for controlling / controlling the screen / display as well as the screen itself.
• the method provides for the data exchange step as previously with data exchange electric needles 14 of a data exchange station 17, coming into contact with the terminals 18 whereas the latter are arranged on the surface of the device.
• the method can provide for eliminating at least a portion of the electrical data exchange tracks 18 opening out of the cavity 3 after the exchange of data is completed.
• the portions of tracks are sectioned by laser beam 16 along the edge of the interface 18 located between the cavity and the module.
• the tracks 18 are held fixed on the outside and can form at least a part of a terminal block of standard contact pads, in particular ISO 7816.
• the tracks can be glued to the surface of the body after having been folded by the tool 15.
• the tracks and / or the substrate of the tracks 18 comprise a precut or embrittlement located closest to the cavity 3 for example close to the interface 18 or preferably deeper in the cavity.
• the tracks / terminals are cut by simply pulling on the tracks and the cutting edge of the tracks / terminals is located in the cavity invisibly.
• the invention can provide for filling the gap that may exist at the interface 18 (between the module and the cavity wall) left by the elimination of interconnection tracks 18 so as to mask or isolate from the outside tracks 18 and sectioned at the interface 19 (or deeper into the cavity).
• the filling can be done by jet of insulating material assisted by VAO (Computer Aided Vision) or for example deposit of insertable material by capillarity.
• VAO Computer Aided Vision
• the invention can provide, on at least the face of the body having the module, to add one or more layer (s) of coverage. These layers may be transparent or translucent at least at the display screen.
• the device can manufacture inexpensively an object having an electrical / electronic circuit to be personalized after burying in the body of the device.
• a contactless communication interface including radio frequency (antenna and radio frequency chip) which would have allowed electrical customization after embedding and connection of the circuit to the battery.
• radio frequency antenna and radio frequency chip
• a bank chip card having an integrated circuit chip module and standard electrical contact pads (ISO 7816)
• ISO 7816 standard electrical contact pads
• the display may have a surface of a dimension of approximately 3 x 3 mm visible on the main external surface of the bank card.
• the screen 5 may be of the electronic paper type, preferably bistable.
• the screen can be of type "Kindle” of the “Amazon company”. It includes small two-color balls that are oriented white or black side depending on the electric field.
• the electronic circuit comprises in the examples, a chip comprising a real-time clock (HTR or RTC) including crystal quartz.
• the invention makes it possible to have, at reduced cost, an object comprising a dynamic CVV function as a function of time or an OTP function (One time password word) for generating a one-time number or password.
• the screen may have a larger dimension and / or be disposed on the front main face of the object.
• the electronic / electrical circuit 4 has a larger surface area relative to that of the display so as to leave a surface of the circuit comprising the tracks / electrical data exchange terminals (13), accessible in the cavity.
• a surface of the circuit 4 comprising the electric data exchange tracks / terminals 13, accessible in the cavity and protruding laterally from the edge of the display.
• the display is substantially centered on the surface of the circuit 4 so as to leave the tracks / terminals (13) at the edge of the display.
• the display may preferably be assembled prior to insertion and connection of the assembly M to the battery. This allows to use a traditional method of insertion based on pressure and temperature because there is no contact with the screen or pressure exerted on it. Inserting is done now the pressure on the area of the circuit not covered by the screen 5 (or display).
• connection between the circuit and the battery by thermo-compression or ultrasound also through the circuit substrate 4 (the connection or interconnection terminals of the circuit to the battery can be located directly above the groove around the display).
• FIG. 9 is illustrated the step of exchanging data with the electronic / electrical circuit (4) by electrical contact.
• the electric transfer needles can freely access the electrical data exchange tracks / terminals (13) disposed inside the cavity, since they are not covered by the display 5.
• programming can be performed ( or initialization and prepersonalization).
• Figure 10 is illustrated a step of filling the existing space above the tracks / terminals 13.
• the space is filled by filling material.
• the tracks / terminals 13 can be masked by an ink jet type printing process, a material jet or by fixing a pre-printed label.
• the masked area or space (E) preferably has a frame-shaped geometry around the display.
• This frame has external dimensions (Lxl) substantially lower than those (lxl ') of the cavity 3.
• the frame has smaller dimensions sufficient to allow it to cover the entire area or space (E) located around the display 5 and in the cavity 3.
• the pre-printed label can be produced according to conventional label manufacturing methods: roll conveyance for the printing steps then cutting and transfer to the cavity 3.
• Fixation can be carried out with a cold adhesive (PSA) or heat-curable adhesive.
• PSA cold adhesive
• heat-curable adhesive a cold adhesive (PSA) or heat-curable adhesive
• the electronic / electrical circuit 4 is distinct from a module with electrical contacts and / or smart card antenna;
• the electric data exchange tracks / terminals 13 are distinct from the electrical contact pads of a smart card module in particular in ISO 7816 format and flush on the surface;
• the tracks 13 are also distinct from a radiofrequency communication antenna.

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• Engineering & Computer Science (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Theoretical Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Physics & Mathematics (AREA)
• Biophysics (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Power Engineering (AREA)
• Credit Cards Or The Like (AREA)

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• 2014
  • 2014-04-18 EP EP14305587.9A patent/EP2933759A1/de not_active Withdrawn
• 2015
  • 2015-04-17 US US15/304,782 patent/US10013648B2/en active Active
  • 2015-04-17 WO PCT/EP2015/058438 patent/WO2015158915A1/fr not_active Ceased
  • 2015-04-17 EP EP15716082.1A patent/EP3132386A1/de not_active Withdrawn

Non-Patent Citations (2)

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