EP3787907B1 - Élément de sécurité avec structure de sécurité biologique et son procédé de production - Google Patents

Élément de sécurité avec structure de sécurité biologique et son procédé de production Download PDF

Info

Publication number
EP3787907B1
EP3787907B1 EP19721278.0A EP19721278A EP3787907B1 EP 3787907 B1 EP3787907 B1 EP 3787907B1 EP 19721278 A EP19721278 A EP 19721278A EP 3787907 B1 EP3787907 B1 EP 3787907B1
Authority
EP
European Patent Office
Prior art keywords
contacts
substrate
biological material
biological
security
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.)
Active
Application number
EP19721278.0A
Other languages
German (de)
English (en)
Other versions
EP3787907A1 (fr
EP3787907C0 (fr
Inventor
Julian Barnett
Jens Bolten
Ulrich Plachetka
Thorsten Wahlbrink
Zoran KONKOLI
Andrew ADAMATZKY
Konrad SZACILOWSKI
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.)
Amo GmbH
Original Assignee
Amo 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 Amo GmbH filed Critical Amo GmbH
Publication of EP3787907A1 publication Critical patent/EP3787907A1/fr
Application granted granted Critical
Publication of EP3787907B1 publication Critical patent/EP3787907B1/fr
Publication of EP3787907C0 publication Critical patent/EP3787907C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/445—Marking by removal of material using chemical means, e.g. etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23—Identity cards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/02—Testing electrical properties of the materials thereof
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/202—Testing patterns thereon using pattern matching
    • G07D7/206—Matching template patterns

Definitions

  • the invention relates to a security element with a biological security structure and to different methods for its production.
  • Security structures should be as unique as possible, imitation and forgery-proof. They must also meet other conditions, such as being permanent, legible and verifiable with simple means. They are intended to be used to authenticate products.
  • the products can be a large number of different objects, such as pharmaceuticals, spare parts (e.g. for airplanes), banknotes, identity cards, documents, etc.
  • the security element is small enough that it can be placed on these products or objects can be attached, for example, on a check card.
  • a security element which has parts of biological origin cut with a laser. These parts are specially arranged and arranged in relation to one another. The optical appearance is read out.
  • WO 2015/124770 A1 a security element based on biometric data is known, it is intended to make communication secure. Unauthorized persons should not be given access to communication networks.
  • the security element is read out electronically.
  • a security element From the EP 1 839 279 B1 a security element, authorization methods, systems for authorizing security documents and the like are known. At least one enzyme is used in this case. The genetic information of the enzyme is read out.
  • the document cites a large number of patent publications in which security elements are described whose security properties are based on the uniqueness of organic material. For example, the uniqueness of DNA and RNA is used.
  • the present invention uses no cell components, no genetic information and no purely biochemical substances as a security feature.
  • a method for producing a hybrid security structure for a security document comprising the following steps: providing a document substrate; applying a first element comprising a first electrically conductive region of the hybrid security structure to the document substrate by a first process; applying a second element comprising a second electrically conductive region of the hybrid security structure to the document substrate by a second process, the first process being different from the second process; and electrically coupling the first and second electrically conductive regions of the hybrid security structure for detection by a capacitance sensor.
  • a plasmonic structure includes a plurality of metal particles disposed on a substrate and one or more metal structures electrically coupled to and disposed on a surface of each of the plurality of metal particles.
  • the metal structures have a structure different from the structure of the metal particles.
  • the metal structures can e.g. B. be grown by galvanic deposition on the metal particles. The growth of such metal structures can tune the response of the plasmonic structure.
  • the WO 2014/165047 A1 relates to dendritic tags and methods and systems for making and using such tags.
  • the methods may include obtaining at least one image of a dendritic tag attached to an article, analyzing the at least one image to identify a set of features associated with the dendritic tag, and comparing the set of features to stored information, to identify the item.
  • the WO 2015/183243 A1 relates to an anti-counterfeiting pattern identifiable by sheet resistance mapping metrology, a method of manufacturing such a counterfeit-proof device, and a method of detecting such a counterfeit-proof device by imaging the pattern with sheet resistance mapping metrology.
  • the object of the invention is to specify a security element, in particular starting from the security element according to the WO 2017/11457 2 A1 , which can be read using simple technical means and is so highly complex that an identical duplicate in manufacture and successful copying are unlikely.
  • This security element is read both optically and electrically. Only if both results are positive, this counts as authentication.
  • the optical recording takes place via a camera, the captured image is compared with a stored image.
  • the electrical detection can take place simultaneously, the resistance network is queried, preferably the resistance values between two contacts are queried in each case.
  • the resistance values can also be queried and related to one another, so that it is not the absolute values that are important, but the relative values. As a result, for example, a drift and / or a temperature dependence of Resistance values are compensated. Another type of compensation is possible, for example by additionally recording the temperature during the readout process and correcting the values using a formula.
  • the electrical recording is also used to compare stored data.
  • the security structure has a geometric shape and a large number of individual conductor tracks.
  • the geometric shape is queried visually. Electrically, the resistance network formed from the conductor tracks is queried.
  • the geometric form is determined by a grown biological organism.
  • the biological organism grows branched out from a starting area, which means that it does not spread over the entire surface, but rather grows in narrow veins or branches towards the attractors. When growth is complete, the biological organism covers a maximum of 70%, in particular a maximum of 50% and preferably a maximum of 30% of the area between the contacts or locations on the auxiliary carrier.
  • the veins and branches emanating from the starting area which has usually grown larger as a result of growth, form paths, and each individual contact is connected to another contact via at least one path. A trace between two contacts can have multiple paths.
  • the biological organism is preferably a unicellular organism, in particular a slime mold.
  • Myxogastria Myxomycetes or true slime molds
  • Dictyostelia and Protostelia as well as Copromyxa, Copromyxella and Fonticula, as well as Amoebozoa, Plasmodial amoeba, algae, fungi are also possible.
  • the starting area takes up a maximum of 10%, preferably only 5%, of the area between the contacts; it is continuous.
  • the biological organism typically grows in days, for example 2 to 3 days, it grows two-dimensionally in all directions starting from the starting area. The organism remains topologically connected. In this understanding of language, a tree, which also shows branched growth, only grows one-dimensionally in one direction, namely upwards.
  • the security structure need not extend to all contacts. A few contacts or locations on the auxiliary carrier can deliberately not be covered with attractor material. As a result, resistance values measured by these contacts are extremely high.
  • the carrier is preferably an insulator, in any case it has a value of at least two powers of ten lower conductivity than the conductor tracks of the resistive layer.
  • the number of contacts that are not connected to the resistor network should be a maximum of 20% of the number n of contacts. It is also possible to cover the contacts or locations on the auxiliary carrier, to which the organism should not grow, with a rejecting material (repulsor), which has a repulsive and thus opposite effect on the organism to the attractor material.
  • repulsor rejecting material
  • the invention further relates to various methods defined in claims 4 to 7 for producing the security element. These methods enable industrial production of the security element, using method steps as are known from semiconductor technology.
  • the maximum distances between any two contacts are in the range of 1 to 100 mm.
  • the grown organism should be large enough to fit in the area between the contacts. However, it is possible to take a larger organism, grow it on a support, and capture its geometric shape for transfer and scale it down to fit the area between the contacts. You can also work with an enlargement.
  • the growth of the organism is only necessary until as many contacts or locations covered with attractor material as possible have been reached. After that, no further growth is necessary. As a rule, the growth of the organism can then be stopped, in particular the organism can be killed off, when the organism has grown sufficiently large or when a certain time for growth has elapsed. It can also be removed.
  • the electrical conductivity of the security structure is preferably achieved by resistive material that is already used industrially for electrical resistors, for example metal film resistors, metal oxide layer resistors and thick film resistors.
  • resistive material that is already used industrially for electrical resistors, for example metal film resistors, metal oxide layer resistors and thick film resistors.
  • Plastic material such as PDMS or PANI, and doped semiconductors, such as SOI, can also be used.
  • the resistance material which is originally present as a resistance layer, has a location-dependent conductivity.
  • the carrier can be rigid or flexible in shape; it must be suitable for accommodating the electrical contacts and which enable the further treatment steps.
  • the carrier can be paper, a semiconductor substrate, in particular SOI, ceramic, plastic material, glass or the like.
  • the contacts can be metallic, for example made by vapor deposition, they can be realized by conductive ink, for example graphene ink.
  • the invention also relates to the use, defined in claim 8, of a security element for authenticating an object to which the security element is connected.
  • the opposite of attractor material is repulsor material, which is known in the art to be avoided by the organism. Attractor material and/or the repulsor material are preferably suitable for being applied to the carrier or auxiliary carrier by a printing process or a stamping process. This material is particularly pasty.
  • the biological material of the biological organism, which is applied in the area between the contacts or locations, is preferably applied by a simple transfer process such as stamping or printing (eg with an inkjet printer) and is also preferably present as a paste or liquid.
  • the first embodiment according to Figures 1 to 6 , the second embodiment according to figure 7 and the third embodiment according to FIGS Figures 8 and 9 each relate to a security element according to alternative i) in claim 1
  • the fourth exemplary embodiment according to Figures 10 to 12 relates to a security element according to alternative ii).
  • the first exemplary embodiment will first be discussed in detail, the further exemplary embodiments will then be discussed insofar as they differ from the first.
  • a feature that has been described for one embodiment can also be implemented and used for another embodiment.
  • the carrier 20 is made of plastic
  • the contacts 22 are metallic, for example Al, and are vapour-deposited onto a surface of the carrier 20 .
  • This surface is covered extensively with an electrically conductive layer, referred to below as resistance layer 24, in particular this resistance layer 24 extends over the contacts 22.
  • resistance layer 24 an electrically conductive layer, referred to below as resistance layer 24, in particular this resistance layer 24 extends over the contacts 22.
  • the resistive layer 24 covers the area between the contacts 22. It is advantageous if the resistive layer 24 extends outwards only over the contacts 22, but no further, i.e. to the limit, as shown in FIG figure 1 is indicated, i.e. in particular the boundary of the support 20. the resistive layer 24 is continuous, it is mathematically continuous.
  • Attractor material 26 is applied to contacts 22 .
  • This is, for example, nutrient paste.
  • a maximum of three, preferably a maximum of two, of the sixteen contacts 22 cannot be covered with the nutrient paste; if necessary, they can be covered with a counteracting repulsor material.
  • Biological material 28 is deposited in the area between the contacts 22, in this specific case for a slime mold. It is preferably arranged, in particular printed, approximately in the middle between the contacts 22 . In its initial state, this biological material 28 occupies a starting area 29 , the latter having an area which is at most 10% of the area of the area between the contacts 22 .
  • figure 3 shows a sectional view through the arrangement according to FIG figure 2 one can see the starting area 29 and the attractor material 26 located on the contacts 22.
  • the necessary prerequisites are now created for the biological material 28 of the slime mold to begin to grow, ie the required temperature, humidity, lighting if necessary, etc. are maintained.
  • An initial stage of growth shows figure 4 .
  • the center or spot of the biological material 28 has already grown beyond the starting area 29 .
  • Individual branches and twigs have grown out of this spot with a growth direction in two dimensions and thus in the area, they branch out and branch out at a distance from the original starting area 29. Starting from the starting area 29, the biological material becomes larger in terms of area.
  • the stain increases in size by a maximum of ten times. This shows a comparison of figures 2 and 4 , whereby figure 4 not yet showing the final growth.
  • the stain itself does not reach contacts 22.
  • the next step is an etching process, preferably dry chemical.
  • ionized oxygen is used; oxygen nuclei and/or ions are directed onto the arrangement essentially at right angles to the plane of the paper in FIG.
  • only the resistance layer 24 is acted upon. Insofar as it is not covered by the grown biological organism, it is removed.
  • the organism acts as a mask protecting the resistive layer 24 from the etching process.
  • the contacts 22 are also not attacked and are still present after the etching step. As a result, only part of the resistive layer 24 has been removed; the remainder of the resistive layer 24 is an exact copy of the geometric shape of the biological organism. Other methods to reduce the resistive layer 24 to the geometric shape of the biological organism are possible.
  • figure 6 shows the state after etching.
  • the contacts 22 are now (only) electrically connected to one another by a network of the resistive material.
  • a network of the resistive material There is an electrical connection between any two contacts 22 via at least one path of a certain length and a certain cross-section.
  • the geometric shape of the grown slime mold is unique, it is used for the optical evaluation, which is parallel to the evaluation of the resistances, see also figure 14 , the network takes place.
  • the second embodiment after figure 7 uses an SOI substrate as carrier 20, it has a thin Si layer 30.
  • the Si layer 30 is doped and thus set to a certain conductivity. However, it is not uniformly doped, but deliberately highly inhomogeneous. Consequently, the conductivity between any two points of the Si layer 30 and thus between two selected contacts 22 is significantly different from the conductivity between any two other points and thus between two other contacts 22.
  • the resistance values between different contacts 22 preferably differ by at least by a factor of 100, preferably by a factor of at least 1000.
  • the resistance layer 24 is not homogeneous. Rather, it has a location-dependent conductivity. Such a location-dependent conductivity could be achieved in the first exemplary embodiment in that the resistance layer 24 is inhomogeneous, for example being composed of individual regions with different conductivity that overlap one another at the edges or at least make contact.
  • the attractor material 26 is located above the contacts 22 and the biological material 28 in the area between the contacts 22.
  • figure 7 shows a state of growth similar to that in figure 4 shown. If the condition according to figure 5 is reached, ie the biological material 28 has grown sufficiently, the photoresist 32 is exposed. The exposed parts of the photoresist 32 are then removed, so that the photoresist 32 is only underneath the biological organism. The biological organism can now be removed. It is etched, this time preferably wet-chemically, for example with HF.
  • the parts of the Si layer 30 that lie outside the biological structure are removed.
  • the geometric shape of the biological organism is thus transferred to the conductive Si layer 30 .
  • this can be queried optically, on the other hand, it forms the resistance network according to the invention. If necessary, it can be colored in order to improve the optical recognizability; this can be carried out for a different configuration of the resistance layer 24 .
  • the carrier 20 is made of paper.
  • the electrical contacts 22 are printed on its surface with conductive ink.
  • figure 8 shows the state in which attractor material 26 is applied to the contacts 22 and biological material 28 is deposited in the starting area 29 .
  • a special biological material 28 is used that has its own electrical conductivity and/or an attractor material 26 that gives the biological material a certain electrical conductivity is used. If, as in figure 9 shown the organism has grown sufficiently, its growth is blocked. This fixes its geometric shape, and the resistance network is now also complete, because the individual contacts 22 are connected to one another by electrically conductive paths, which connect each individual contact 22 to any other contact 22 .
  • a carrier 20 which has a number n of electrical contacts 22 on its surface and is covered over the entire surface with a resistance layer 24 .
  • an auxiliary carrier 34 for example made of paper, is used.
  • biological material 28 is deposited at a location corresponding to the starting area 29 and, on the other hand, attractor material 26 is deposited at those locations 36 of the auxiliary carrier 34 whose geometric position is congruent with the position of the contacts 22 of the aforementioned carrier 20 .
  • the number of locations 36 thus corresponds to the number n of contacts 22.
  • attractor material 26 does not have to be deposited on all locations 36, see above.
  • figure 10 shows an intermediate stage similar figure 4 .
  • a conclusion is reached when the biological organism has reached the locations 36 that are covered with attractor material 26, see figure 11 .
  • the growth of the biological organism can be interrupted. This can be frozen, for example.
  • the intermediate product obtained in this way is now covered over the entire surface with an impression compound 37, for example silicone, figure 12 shows this condition. It is demoulded, see figure 13 and there in particular the arrow, and thus receive a stamp.
  • Its indentations, originating from the biological organism are filled with a hardenable varnish; photoresist can also be used here, for example.
  • the stamp filled in this way is pressed precisely onto the previously prepared carrier 20, so that the paint filling is on the Carrier 20 transferred where it hardens.
  • the hardened lacquer forms a mask which, as in the first exemplary embodiment, makes it possible for only the resistive layer 24 to be removed outside the mask, in particular in a wet-chemical etching step, for example.
  • the lithography steps described belong to the state of the art in the production of semiconductors; in this respect, the state of the art is used.
  • the stamp obtained in this way can be used several times, a number of carriers 20 can be prepared, which are each printed with lacquer using the stamp. In this way one obtains a number of structurally identical security elements. While unique items are created with alternative i) of claim 1, it is also possible according to alternative ii) to produce a large number of identical security elements.
  • a carrier 20 is produced as in FIG. 1, but this time without a resistive layer 24. Then, as described above and with reference to FIG Figures 12 and 13 shown, created over an auxiliary carrier 34 a stamp with the hollow shape of the adult biological organism. However, paint is not filled into its depressions, but rather an electrically conductive paste, which hardens after it has been transferred to the carrier 20 . This can be, for example, a conductive paste with metal oxide or plastic powder. The stamp prepared in this way is pressed onto the carrier 20 with a precise fit, the geometric shape and thus also the resistance network being transferred to it.
  • FIG 14 shows a ready-to-use safety part. It is more suitable for practical use than the security element alone.
  • a security element is located between them, as has been described above, for example, for the first exemplary embodiment.
  • Each of the contacts 22 of the security element is connected to one of the main contacts 40 via a connecting line 42 .
  • the electrical measurements are carried out on the main contacts 40.
  • the main support 38 can be made of a different material than the support 20, preferably the carrier 20 is part of the main carrier 38, in particular a one-piece part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Claims (8)

  1. Elément de sécurité avec une structure de sécurité, qui peut être interrogée optique entant qu'image et électriquement en tant que réseau de résistances électriques, avec un support (20), qui porte un nombre n de contacts électriques individuels (22), sachant que la structure de sécurité se trouve dans la zone située entre ces contacts, comporte une conductibilité électrique et fournit une liaison électrique respectivement entre tous les n contacts les plus nombreux possibles, caractérisé en ce que la forme géométrique de la structure de sécurité est déterminée
    i) soit par un organisme biologique développé sur le support (20), qui comporte une croissance ramifiée à partir d'une zone initiale (29) et dont la croissance peut être stimulée par le fait qu'elle évolue sur des attracteurs, qui sont respectivement positionnés sur les contacts,
    ii) soit par un organisme biologique développé sur un support auxiliaire (34), qui comporte une croissance ramifiée à partir d'une zone initiale (29) et dont la croissance peut être stimulée par le fait qu'elle évolue sur des attracteurs, qui sont positionnés aux endroits (36) du support auxiliaire (34) auxquels se trouvent les contacts sur le support (20), sachant que la forme géométrique ainsi obtenue de l'organisme biologique a été transférée sur le support (20).
  2. Dispositif selon la revendication 1, caractérisé en ce que la conductibilité électrique de la structure de sécurité est réalisée par une couche de résistance (24) et en ce que cette couche de résistance comporte de préférence une conductibilité électrique à dépendance locale.
  3. Dispositif selon l'une quelconques des revendications précédentes, caractérisé en ce que le matériau attracteur (26) et/ou le matériau déposé dans la zone initiale (29) de l'organe biologique est appliqué dans un procédé d'impression.
  4. Procédé de fabrication d'un élément de sécurité selon l'une quelconque des revendications précédentes avec les étapes suivantes :
    a) préparation d'un support (20), qui comporte sur une surface un nombre n de contacts électriques individuels (22),
    b) application en surface d'une couche électroconductrice sur la zone située entre ces contacts et sur tous les n contacts les plus nombreux possibles
    c) dépôt d'un matériau attracteur (26), en particulier de pâte alimentaire, sur tous les n contacts les plus nombreux possibles et d'un matériau biologique, en particulier de myxomycète, dans la zone située entre les contacts,
    d) attente jusqu'à ce qu'une croissance ramifiée du matériau biologique ait lieu par rapport aux contacts qui sont enduits de matériau attracteur (26), et
    e) enlèvement de la partie de la couche électroconductrice qui n'est pas recouverte de matériau biologique, comme cela est le cas selon l'étape d), la partie restante forme la structure de sécurité.
  5. Procédé de fabrication d'un élément de sécurité selon l'une quelconque des revendications 1 à 3,
    a) préparation d'un support (20), qui comporte sur une surface un nombre n de contacts électriques individuels (22),
    b) dépôt d'un matériau attracteur (26), en particulier de pâte alimentaire, sur tous les n contacts les plus nombreux possibles et d'un matériau biologique, en particulier de myxomycète, dans la zone située entre les contacts, sachant que le matériau attracteur (26) confère au matériau biologique une conductivité électrique et/ou le matériau biologique est initialement électroconducteur,
    c) attente jusqu'à ce qu'une croissance ramifiée du matériau biologique par rapport aux contacts qui sont enduits de matériau attracteur (26), ait lieu
    d) le cas échéant, finition de la croissance du matériau biologique, par exemple par extinction et
    e) utilisation du matériau biologique électroconducteur développé en tant que structure de sécurité.
  6. Procédé de fabrication d'un élément de sécurité selon l'une quelconque des revendications 1 à 3,
    a) préparation d'un support (20), qui comporte sur une surface un nombre n de contacts électriques individuels (22),
    b) préparation d'un support auxiliaire (34) et dépôt d'un matériau attracteur (26) en particulier de pâte alimentaire, sur tous les endroits (36) les plus nombreux possibles auxquels se trouvent les contacts sur le support (20) et d'un matériau biologique, en particulier de myxomycète, dans la zone située entre les endroits (36),
    c) attente jusqu'à ce qu'une croissance ramifiée du matériau biologique par rapport aux endroits (36) qui sont enduits de matériau attracteur (26), ait lieu,
    d) le cas échéant, finition de la croissance du matériau biologique, par exemple par extinction,
    e) déformation de la structure géométrique du matériau biologique développé au moyen d'un matériel d'estampage et enlèvement de l'empreinte obtenue du support auxiliaire (34) et du matériau biologique,
    f) remplissage de l'empreinte de pâte d'impression électroconductrice et impression adaptée du support (20) avec cette pâte d'impression et
    g) utilisation de la structure géométrique imprimée, se trouvant sur le support (20) en tant que structure de sécurité.
  7. Procédé de fabrication d'un élément de sécurité selon l'une quelconque des revendications 1 à 3 avec les étapes suivantes :
    a) préparation d'un support (20), qui comporte sur une surface un nombre n de contacts électriques individuels (22),
    b) application en surface d'une couche électroconductrice sur la zone située entre ces contacts et sur tous les n contacts les plus nombreux possibles,
    c) préparation d'un support auxiliaire (34) et dépôt d'un matériau attracteur (26) en particulier de pâte alimentaire, sur tous les endroits (36) les plus nombreux possibles auxquels se trouvent les contacts sur le support (20) et d'un matériau biologique, en particulier de myxomycète, dans la zone située entre les endroits (36),
    d) attente jusqu'à ce qu'une croissance ramifiée du matériau biologique ait lieu par rapport aux endroits (36), qui sont enduits de matériau attracteur (26),
    e) le cas échéant, finition de la croissance du matériau biologique, par exemple par extinction,
    f) déformation de la structure géométrique du matériau biologique développé au moyen d'un matériel d'estampage et enlèvement de l'empreinte obtenue du support auxiliaire (34) et du matériau biologique,
    g) remplissage de l'empreinte avec une laque durcissable, par exemple photosensible, et impression adaptée du support (20) avec cette laque,
    h) enlèvement de la partie de la couche électroconductrice qui n'est pas recouverte par la laque et
    i) utilisation de la partie restante, se trouvant sur le support (20) de la couche électroconductrice en tant que structure de sécurité.
  8. Utilisation d'un élément de sécurité selon l'une quelconque des revendications 1 à 3 ou d'un élément de sécurité fabriqué selon l'une quelconque des revendications 4 à 7 pour l"authentification d'un objet avec lequel l'élément de sécurité est relié, sachant que
    - l'élément de sécurité est saisi avec un dispositif d'interrogation, qui saisit d'une part optiquement la forme géométrique de la structure de sécurité et compare à une image originale, qui est mémorisée à un lieu de mémorisation et interroge d'autre part électriquement la structure réticulaire de résistance et compare les valeurs de résistance saisies à cet effet à des valeurs originales et
    - n'émet ensuite, que les deux comparaisons sont positives, un signal, qui affiche l'authentification réussie de l'élément de sécurité.
EP19721278.0A 2018-05-04 2019-05-02 Élément de sécurité avec structure de sécurité biologique et son procédé de production Active EP3787907B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018110789 2018-05-04
PCT/EP2019/061241 WO2019211377A1 (fr) 2018-05-04 2019-05-02 Élément de sécurité avec structure de sécurité biologique et son procédé de production

Publications (3)

Publication Number Publication Date
EP3787907A1 EP3787907A1 (fr) 2021-03-10
EP3787907B1 true EP3787907B1 (fr) 2023-06-28
EP3787907C0 EP3787907C0 (fr) 2023-06-28

Family

ID=66379924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19721278.0A Active EP3787907B1 (fr) 2018-05-04 2019-05-02 Élément de sécurité avec structure de sécurité biologique et son procédé de production

Country Status (2)

Country Link
EP (1) EP3787907B1 (fr)
WO (1) WO2019211377A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1028064C2 (nl) 2005-01-18 2006-07-19 Vhp Ugchelen Bv Authenticatiewerkwijze en -systeem voor het authenticeren van veiligheidsdocumenten en veiligheidsdocument.
WO2012065076A1 (fr) * 2010-11-14 2012-05-18 Arizona Board Of Regents, A Body Corporate Of The State Of Arizona Acting For And On Behalf Of Arizona State University Structures plasmoniques, procédés de fabrication de structures plasmoniques et dispositifs les comprenant
EP2973234B1 (fr) * 2013-03-12 2018-10-24 Arizona Board of Regents, a Body Corporate of the State of Arizona acting for and on behalf of Arizona State University Structures et étiquettes dendritiques
RU2016137831A (ru) 2014-02-24 2018-03-29 Ханскан Ип Б.В. Портативное устройство биометрической идентификации
WO2015183243A1 (fr) * 2014-05-27 2015-12-03 Rolith, Inc. Éléments anti-contrefaçon et procédés de fabrication et de détection
WO2017114572A1 (fr) 2015-12-30 2017-07-06 Institute Of Physics Belgrade, University Of Belgrade Étiquette de sécurité dotée de particules découpées au laser d'origine biologique
GB2546975A (en) * 2016-01-29 2017-08-09 De La Rue Int Ltd Methods of manufacturing security structures for security documents

Also Published As

Publication number Publication date
WO2019211377A1 (fr) 2019-11-07
EP3787907A1 (fr) 2021-03-10
EP3787907C0 (fr) 2023-06-28

Similar Documents

Publication Publication Date Title
DE102016200465B4 (de) Verfahren zum Betreiben eines Druckers für dreidimensionale Objekte mit dem Erzeugen von Testmustern zum Messen einer Distanz zwischen Druckkopf und Substrat und Drucker für dreidimensionale Objekte
WO2006061000A2 (fr) Porte constituee de transistors a effet de champ organiques
DE102012004110B4 (de) Verfahren zur Herstellung eines Widerstands
WO2006024441A2 (fr) Corps multicouche ayant des zones de differentes microstructurations dotees d'un revetement electroconducteur
EP1646507B1 (fr) Corps multicouche, dispositif et procede pour produire un motif sur une surface avec une haute resolution
WO2009100809A2 (fr) Convertisseur thermoélectrique et procédé de fabrication correspondant
EP3787907B1 (fr) Élément de sécurité avec structure de sécurité biologique et son procédé de production
EP1925033A1 (fr) Circuit electronique, et son procede de production
DE1905903A1 (de) Waermeschreibwerk
DE102019118705A1 (de) Gedruckte elektronische vorrichtungen, die eine verbesserte leistung aufweisen
DE102011053612B3 (de) Körper aus einem Matrixmaterial sowie Verfahren zur Herstellung und Verwendung eines solchen Körpers
WO2005069399A1 (fr) Transistor organique à électrode grille autoréglable et procédé de fabrication associé
EP2995703A1 (fr) Procédé de fabrication d'électrodes de dérivation de surface et semi-produit destiné à exécuter le procédé
DE102009056122A1 (de) Verfahren zur Kontaktierung eines Chips
EP3378643A1 (fr) Tôle de laminage et dispositif de mesure d'une température dans un substrat lors du laminage d'un empilement de couches de substrat
WO2007141007A1 (fr) Composant avec une couche structurée sur un substrat porteur
WO2016012004A1 (fr) Procédé de marquage de plaquettes de semi-conducteurs ainsi que plaquette de semi-conducteurs et colonne de semi-conducteurs
WO2023208262A1 (fr) Élément fonctionnel profilé en trois dimensions avec un conducteur électrique plat et son procédé de production
EP0420345B1 (fr) Sonde à influence
DE102020006455A1 (de) Herstellung von Pigmenten mit definierter Größe und Form
DE102013220984B4 (de) Vorrichtung, Speichergerät, Schalter und Verfahren, die Mikrostrukturen umfassen, welche sich von einer Unterlage aus erstrecken
EP2641213B1 (fr) Procédé et dispositif de fabrication de structures de lecture codées individuellement
DE102019135574A1 (de) Verfahren zum Herstellen einer heterogen strukturierten Beschichtung eines optoelektronischen Bauelements, sowie ein optoelektronisches Bauelement mit einer solchen Beschichtung
DE102020110553A1 (de) Flexibles Funktionselement
DE102019131654A1 (de) Verfahren zur Herstellung von Banknoten mit jeweils mindestens einer integrierten Schaltung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20201124

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230112

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1582394

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019008333

Country of ref document: DE

U01 Request for unitary effect filed

Effective date: 20230727

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20230802

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231028

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230628

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT