DE102005016294A1 - Chip cover for use in smart card, has activator material which is degraded partially after activation of chip surface, where material represents fluorine compound to release hydrogen fluoride from semiconductor chip - Google Patents
Chip cover for use in smart card, has activator material which is degraded partially after activation of chip surface, where material represents fluorine compound to release hydrogen fluoride from semiconductor chip Download PDFInfo
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- DE102005016294A1 DE102005016294A1 DE102005016294A DE102005016294A DE102005016294A1 DE 102005016294 A1 DE102005016294 A1 DE 102005016294A1 DE 102005016294 A DE102005016294 A DE 102005016294A DE 102005016294 A DE102005016294 A DE 102005016294A DE 102005016294 A1 DE102005016294 A1 DE 102005016294A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
-
- 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
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07372—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
- G06K19/07381—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/585—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries comprising conductive layers or plates or strips or rods or rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01068—Erbium [Er]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1204—Optical Diode
- H01L2924/12044—OLED
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Abstract
Description
Die
Erfindung betrifft eine Chip-Abdeckung zur vollständigen oder
teilweisen Abdeckung der Chipoberfläche, bei der ein Aktivatorstoff
vorgesehen ist, der in der Lage ist, nach Aktivierung die Chipoberfläche zumindest
teilweise zu zerstören.
Solch eine Chip-Abdeckung ist aus der
Chip-Abdeckungen schützen die abgedeckten Bereiche eines Halbleiter-Chips vor Beschädigungen durch mechanische Gewalt und Umwelteinflüsse.Chip Covers protect the covered areas of a semiconductor chip from damage through mechanical violence and environmental influences.
Es ist möglich, einen Halbleiter-Chip einer Analyse, dem so genannten „Reverse Engineering" zu unterziehen. Diese Analyse kann dazu dienen, den Chipaufbau oder die Funktionsweise von integrierten Schaltungen zu analysieren oder die Funktionsweise zum Zwecke einer Manipulation eines Dateninhaltes oder des Funktionsablaufs zu beeinflussen.It is possible, a semiconductor chip of an analysis, the so-called "reverse Engineering "too undergo. This analysis can serve to build the chip or to analyze the functioning of integrated circuits or the functionality for the purpose of manipulating a data content or the functional sequence.
Zur Analyse wird beispielsweise die Chip-Abdeckung entfernt, die die Oberfläche des Halbleiter-Chips bedeckt. Das einfachste und jedem zugängliche Verfahren hierfür ist das chemische Ablösen der Chip-Abdeckung mit Hilfe von Säuren, Basen oder anderen Lösungsmitteln.to For example, analysis removes the chip cover that the surface covered by the semiconductor chip. The simplest and accessible to everyone Method for this is the chemical detachment the chip cover with the help of acids, bases or other solvents.
Zur Verhinderung solcher Analysen könnte eine komplett chemisch resistente Schutzschicht, wie z.B. spezielle Gläser oder Keramiken vorgesehen werden, die gegen Säuren, Basen oder anderen Lösungsmitteln inert sind. Diese benötigen jedoch hohe Prozessierungstemperaturen, haben keine an den Halbleiter-Chip angepassten thermischen Ausdehnungskoeffizienten und erzielen meist keine ausreichende Haftung auf der Chipoberfläche.to Prevention of such analyzes could be a completely chemically resistant protective layer, e.g. special glasses or Ceramics are provided which are resistant to acids, bases or other solvents are inert. These need however, high processing temperatures do not match the semiconductor chip thermal expansion coefficient and usually do not achieve sufficient Adhesion on the chip surface.
Gemäß der
Aufgabe der Erfindung ist es, einen verbesserten Schutz gegen Analysen eines Halbleiter-Chips zu bieten, indem nicht nur Aluminium-Strukturen auf der Chipoberfläche, sondern die gesamte Oberflächenstruktur des Halbleiter-Chips zerstört wird.task The invention is to provide improved protection against analysis of a To provide semiconductor chips by not just aluminum structures on the chip surface, but the entire surface structure destroyed the semiconductor chip becomes.
Die Aufgabe wird erfindungsgemäß durch eine Chip-Abdeckung der eingangs genannten Art gelöst, bei der der Aktivatorstoff eine Fluorverbindung darstellt, die bei dem Versuch die Chip-Abdeckung vom Halbleiter-Chip zu entfernen, zumindest HF freisetzt.The The object is achieved by a Chip cover of the aforementioned type dissolved, wherein the activator represents a fluorine compound that in attempting the chip coverage of the semiconductor chip to remove, at least releases HF.
Der Erfindung liegt die Erkenntnis zugrunde, dass bei Verwendung von Säuren zur Ablösung der Chip-Abdeckung diese Säure aus der Fluorverbindung HF (Flusssäure, Fluorwasserstoff) bildet. HF greift SiO2 an und zerstört die gesamte Struktur der Chipoberfläche. Somit wird zwar der Halbleiter-Chip freigelegt, jedoch ist er aufgrund der dabei einhergehenden Zerstörung der Oberflächenstruktur unbrauchbar.The invention is based on the finding that when acids are used to detach the chip cover, this acid forms from the fluorine compound HF (hydrofluoric acid, hydrogen fluoride). HF attacks SiO 2 and destroys the entire structure of the chip surface. Thus, although the semiconductor chip is exposed, but it is unusable due to the concomitant destruction of the surface structure.
Vorteilhaft ist auch, dass die erfindungsgemäße Chip-Abdeckung bei jeder Art von Halbleiter-Chip verwendet werden kann.Advantageous is also that the chip cover according to the invention at each Type of semiconductor chip can be used.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.advantageous Further developments of the invention are specified in the subclaims.
Eine Weiterentwicklung der Erfindung sieht vor, dass die Fluorverbindung in Form eines ionischen Salzes vorliegt. Bei spielsweise liegt die Fluorverbindung als KF, KFHF, NH4F, AlF, BaF2, CaF2, LiF, MgF2, CuF2 oder PbF2 vor.A further development of the invention provides that the fluorine compound is in the form of an ionic salt. For example, the fluorine compound is present as KF, KFHF, NH 4 F, AlF, BaF 2 , CaF 2 , LiF, MgF 2 , CuF 2 or PbF 2 .
Darüber hinaus kann die Fluorverbindung in Form einer organischen Verbindung vorliegen, wie beispielsweise als Hydrogenfluorid-2,4,6-Trimethylpyridin oder als Fluorwasserstoff-Pyridin-Komplex wie beispielsweise Poly-[4-vinylpyridiniumpoly-(Fluorwasserstoff)]. Ebenso kann ein fluoriertes Polyamid, das zu einem fluorierten Polyimid vernetzt wird, die Fluorverbindung darstellen.Furthermore the fluorine compound may be in the form of an organic compound, such as hydrogen fluoride-2,4,6-trimethylpyridine or as a hydrogen fluoride-pyridine complex like for example, poly [4-vinylpyridinium poly (hydrogen fluoride)]. Similarly, a fluorinated polyamide that is a fluorinated polyimide is crosslinked, which represent fluorine compound.
Aufgrund unterschiedlicher Löslichkeiten von Fluorverbindungen hängt die Auswahl einer geeigneten Fluorverbindung davon ab, wie leicht sich HF bilden soll.by virtue of different solubilities depends on fluorine compounds the selection of a suitable fluoro compound thereof as easily should form HF.
In einer Weiterentwicklung ist die Fluorverbindung wasserunlöslich, so dass nur bei Einwirkung starker Säuren HF freigesetzt wird. Hierdurch kann verhindert werden, dass durch Feuchtelagerung unbeabsichtigt HF gebildet wird, und durch Ladungsträgerwanderung an Aluminium-Kontaktflächen diese korrodieren. Beispiele für solche wasserunlöslichen Fluorverbindungen sind wasserunlösliche Fluorsalze wie CaF2 oder organische Verbindungen, bei denen Fluor beispielsweise an einem Aromaten gebunden ist.In a further development, the fluorine compound is insoluble in water, so that HF is released only on exposure to strong acids. As a result, it can be prevented that moisture is inadvertently formed by moisture storage and corrode by charge carrier migration on aluminum contact surfaces. Examples of such water-insoluble fluorine compounds are water-insoluble fluorine salts such as CaF 2 or organic compounds in which fluorine is bonded to an aromatic, for example.
In einer Ausgestaltung der erfindungsgemäßen Chip-Abdeckung ist die Fluorverbindung in eine Abdeckungsmaterial-Matrix der Chip-Abdeckung eingebunden. Die Abdeckungsmaterial-Matrix, auch Pressmasse oder Globtop genannt, umhüllt den Halbleiter-Chip und besteht häufig aus stark vernetzten Epoxidharzen mit einem hohen Anteil an SiO2. Die Fluorverbindung kann zusammen mit üblichen Additiven bei einem Hersteller der Pressmasse zugesetzt werden. Sie kann auch bei der Globtop Aufbereitung bei einem Globtop-Hersteller oder vor einem Dispensprozess bei einem Globtop-Verarbeiter zugesetzt werden.In one embodiment of the chip cover according to the invention, the fluorine compound is incorporated into a cover material matrix of the chip cover. The cover material matrix, too Called molding compound or globtop, envelops the semiconductor chip and often consists of highly crosslinked epoxy resins with a high content of SiO 2 . The fluorine compound can be added together with conventional additives to a manufacturer of the molding compound. It can also be added to Globtop preparation by a Globtop manufacturer or before a dispensing process by a Globtop processor.
Eine Weiterentwicklung sieht vor, dass die Abdeckungsmaterial-Matrix von einer feuchtigkeitsabweisenden Schicht umgeben ist, wie beispielsweise einer Schicht aus Teflon. Auch hierdurch wird vermieden, dass Feuchtigkeit eindringen kann und zu einer ungewünschten Bildung von HF führt.A Further development provides that the cover material matrix surrounded by a moisture-repellent layer, such as a layer of Teflon. This also avoids moisture can penetrate and leads to an unwanted formation of HF.
In einer anderen Ausgestaltung ist die Fluorverbindung auf der Chipoberfläche vorgesehen. Die Fluorverbindung kann als Schicht auf der Chipoberfläche aufgebracht sein, wodurch die HF-bildende Substanz benachbart zur Chipoberfläche angeordnet ist. Diese Ausgestaltung ermöglicht es, nur eine geringe Menge an Fluorverbindung zu verwenden. Es ist jedoch nicht erforderlich, dass die Fluorverbindung im nicht aktivierten Zustand bereits mit den gegebenenfalls zu zerstörenden Strukturen in Kontakt kommt.In In another embodiment, the fluorine compound is provided on the chip surface. The fluorine compound can be applied as a layer on the chip surface be, whereby the HF-forming substance is disposed adjacent to the chip surface. This configuration allows to use only a small amount of fluorine compound. It is however, it does not require the fluorine compound to be inactivated Condition already comes into contact with the possibly destructible structures.
Häufig ist die Chipoberfläche mit Polyimid beschichtet, um darunterliegende Chip-Strukturen vor mechanischen Beschädigungen zu schützen. Eine geeignete Fluorverbindung kann beispielsweise in eine flüssige Polyimidvorstufe sowohl beim Hersteller als auch Anwender vor einem Aushärteprozess eingebracht werden. Alternativ kann das Polyimid an seinem Aromaten fluoriert sein und selbst den Aktivatorstoff darstellen.Frequently the chip surface coated with polyimide to form underlying chip structures mechanical damage to protect. A For example, suitable fluorochemical may be converted to a liquid polyimide precursor Both the manufacturer and user before a curing process be introduced. Alternatively, the polyimide may be present on its aromatic be fluorinated and themselves represent the activator.
In einer Weiterentwicklung kann die Fluorverbindung in einer Passivierungsschicht, wie Nitrid (Si3N4) – oder Oxid (SiO2) – Schicht eingebracht sein, die auf der Chipoberfläche angeordnet ist. Zwar sind Passivierungsschichten beständig gegenüber HCl oder HNO3, nicht jedoch gegen HF. Somit kann die Fluorverbindung als Beschleunigungskomponente für die Zerstörungswirkung nach einer bereits erfolgten Bildung von HF wirken. Durch das Einmischen in Passivierungsgläser, die in einem so genannten Spin On Verfahren auf den Wafer aufgebracht werden und in dünnen Schichten aushärten, ist dies beispielsweise realisierbar.In a further development, the fluorine compound can be incorporated in a passivation layer, such as nitride (Si 3 N 4 ) or oxide (SiO 2 ) layer, which is arranged on the chip surface. Although passivation layers are resistant to HCl or HNO 3 , but not to HF. Thus, the fluorine compound can act as an accelerating component for the destructive effect after already formed HF. For example, this can be achieved by mixing in passivation glasses, which are applied to the wafer in a so-called spin-on process and harden in thin layers.
Eine andere Ausgestaltung der erfindungsgemäßen Chip-Abdeckung sieht vor, dass die Fluorverbindung zumindest bei einem sicherheitsrelevanten Bereich des Chips vorgesehen ist. Nicht die ganze Chip-Oberfläche, sondern nur ausgewählte Bereiche des Halbleiter-Chips können die Fluorverbindung benachbaren, so dass bei dem Versuch, die Chip-Abdeckung zu entfernen nur diese ausgewählten Bereiche zerstört werden.A Another embodiment of the chip cover according to the invention provides that the fluorine compound provided at least in a security-relevant area of the chip is. Not the whole chip surface, but only selected Areas of the semiconductor chip can adjacent to the fluorine compound, so when trying to cover the chip to remove only these selected ones Areas destroyed become.
Darüber hinaus kann die Fluorverbindung von einer feuchtigkeitsabweisenden Schicht umgeben sein, wie beispielsweise Teflon. Ein Besprühen mit Teflon stellt eine Feuchtigkeitsbarriere dar und kann sowohl auf die Abdeckungsmaterial-Matrix als auch auf eine Schicht auf der Chipoberfläche aufgebracht werden.Furthermore For example, the fluorine compound may be derived from a moisture-repellent layer be surrounded, such as Teflon. A sprinkling with Teflon is a moisture barrier and can be applied to both the cover material matrix as well as applied to a layer on the chip surface.
In einer anderen Alternative kann die Fluorverbindung mikroverkapselt vorliegen. Hierunter versteht man eine Ummantelung der Fluorverbindung mit einer zweiten Substanz, die die Fluorverbindung, beispielsweise vor Feuchtigkeit schützt. Die Fluorverbindung kann entweder homogen verteilt innerhalb eines Partikels vorliegen oder in Form einer so genannten Kern-Hülle-Verkapselung, bei der die Fluorverbindung mit einer festen Außenhülle umgeben ist.In In another alternative, the fluorochemical compound may be microencapsulated available. This is understood to mean a jacket of the fluorine compound a second substance containing the fluorine compound, for example protects against moisture. The fluorine compound can be either homogeneously distributed within one Particles exist or in the form of a so-called core-shell encapsulation in which the Fluorine compound is surrounded by a solid outer shell.
Eine weitere Ausführungsform sieht vor, dass die Fluorverbindung in eine Kunststoffmatrix eingebunden ist, die wasserabweisend ist, sich aber unter Einwirkung von Säuren auflöst. Es können aromatische Molekülfragmente der Polymermatrix fluoriert sein, wie zum Beispiel eine am Aromaten fluorierte Polyamidocarbonsäureester-Vorstufe des Polyimids oder am Aromaten fluorierte Bisphenol A Vorstufe als Vorstufe eines Epoxidharzes.A another embodiment provides that the fluorine compound be incorporated into a plastic matrix is water-repellent, but dissolves under the influence of acids. It can be aromatic molecular fragments the polymer matrix may be fluorinated, such as one on the aromatic fluorinated polyamidocarboxylic ester precursor of the polyimide or the aromatic-fluorinated bisphenol A precursor as Precursor of an epoxy resin.
Bevorzugte Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend unter Bezugnahme auf die Figuren näher erläutert. Es zeigen in schematischer Querschnittsansichtpreferred embodiments The present invention will be described below with reference to FIG the figures closer explained. They show in schematic cross-sectional view
Die
Der
Halbleiter-Chip
Eine
Abdeckungsmaterial-Matrix
Die
Abdeckungsmaterial-Matrix
Um
zu verhindern, dass auf diese Weise die Möglichkeit einer Fremdanalyse
und/oder Manipulation von sicherheitsrelevanten Bereichen der Chips eröffnet wird,
sind Fluorverbindungen als Aktivatorstoffe in der Abdeckungsmaterial-Matrix
In
einem weiteren Ausführungsbeispiel
der erfindungsgemäßen Chip-Abdeckung,
ist die Fluorverbindung auf der Chipoberflä che des Halbleiter-Chips
Die
Die
Auch
diese Schicht
Eine
weitere Ausführungsvariante
der erfindungsgemäße Chip-Abdeckung zeigt die
Weiterhin
kann, wie in
Die
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005016294A DE102005016294A1 (en) | 2005-04-08 | 2005-04-08 | Chip cover for use in smart card, has activator material which is degraded partially after activation of chip surface, where material represents fluorine compound to release hydrogen fluoride from semiconductor chip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005016294A DE102005016294A1 (en) | 2005-04-08 | 2005-04-08 | Chip cover for use in smart card, has activator material which is degraded partially after activation of chip surface, where material represents fluorine compound to release hydrogen fluoride from semiconductor chip |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005016294A1 true DE102005016294A1 (en) | 2006-10-19 |
Family
ID=37055243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102005016294A Ceased DE102005016294A1 (en) | 2005-04-08 | 2005-04-08 | Chip cover for use in smart card, has activator material which is degraded partially after activation of chip surface, where material represents fluorine compound to release hydrogen fluoride from semiconductor chip |
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DE (1) | DE102005016294A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2452732A (en) * | 2007-09-12 | 2009-03-18 | Seiko Epson Corp | Smart-card chip with organic conductive surface layer for detecting invasive attack |
WO2010058068A1 (en) * | 2008-11-18 | 2010-05-27 | Upm Raflatac Oy | An identification tag comprising protective features and a method for manufacturing the identification tag |
WO2015040056A1 (en) * | 2013-09-18 | 2015-03-26 | Bundesdruckerei Gmbh | Valuable product or security product having at least one internal electrical circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725671A (en) * | 1970-11-02 | 1973-04-03 | Us Navy | Pyrotechnic eradication of microcircuits |
DE10131014C1 (en) * | 2001-06-27 | 2002-09-05 | Infineon Technologies Ag | Semiconductor element used in a chip card in the pay-per-view television sector comprises a chip, and a device for deactivating the chip consisting of a hollow chamber containing an activator |
-
2005
- 2005-04-08 DE DE102005016294A patent/DE102005016294A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725671A (en) * | 1970-11-02 | 1973-04-03 | Us Navy | Pyrotechnic eradication of microcircuits |
DE10131014C1 (en) * | 2001-06-27 | 2002-09-05 | Infineon Technologies Ag | Semiconductor element used in a chip card in the pay-per-view television sector comprises a chip, and a device for deactivating the chip consisting of a hollow chamber containing an activator |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2452732A (en) * | 2007-09-12 | 2009-03-18 | Seiko Epson Corp | Smart-card chip with organic conductive surface layer for detecting invasive attack |
WO2010058068A1 (en) * | 2008-11-18 | 2010-05-27 | Upm Raflatac Oy | An identification tag comprising protective features and a method for manufacturing the identification tag |
WO2015040056A1 (en) * | 2013-09-18 | 2015-03-26 | Bundesdruckerei Gmbh | Valuable product or security product having at least one internal electrical circuit |
DE102013218755B4 (en) * | 2013-09-18 | 2020-10-29 | Bundesdruckerei Gmbh | Value or security product with at least one internal electrical circuit |
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