ES2134188T3 - Chip con circuito integrado, de seguridad, con pantalla conductora. - Google Patents
Chip con circuito integrado, de seguridad, con pantalla conductora.Info
- Publication number
- ES2134188T3 ES2134188T3 ES90300090T ES90300090T ES2134188T3 ES 2134188 T3 ES2134188 T3 ES 2134188T3 ES 90300090 T ES90300090 T ES 90300090T ES 90300090 T ES90300090 T ES 90300090T ES 2134188 T3 ES2134188 T3 ES 2134188T3
- Authority
- ES
- Spain
- Prior art keywords
- safety
- elements
- integrated circuit
- circuit elements
- conductive layer
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/57—Protection from inspection, reverse engineering or tampering
- H01L23/576—Protection from inspection, reverse engineering or tampering using active circuits
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/86—Secure or tamper-resistant housings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
- Y10S257/922—Active solid-state devices, e.g. transistors, solid-state diodes with means to prevent inspection of or tampering with an integrated circuit, e.g. "smart card", anti-tamper
Abstract
UN MICROPROCESADOR DE CIRCUITO INTEGRADO (10) QUE CONTIENE UNA ZONA DE SEGURIDAD (11) EN LA QUE SE PROCESAN Y ALMACENAN DATOS DE SEGURIDAD, INCLUYE UNA CAPA SEMICONDUCTORA (SC) QUE CONTIENE DIFUSIONES (S, D) QUE DEFINEN LOS ELEMENTOS COMPONENTES DEL CIRCUITO; UNA PRIMERA CAPA CONDUCTORA (CN1) ACOPLADA A LA CAPA SEMICONDUCTORA PARA INTERCONECTAR LOS COMPONENTES Y DEFINIR CON ELLO LOS ELEMENTOS DE CIRCUITO (14, 16, 17, 18, 20, M1, M2, MN) PARA DISTRIBUIR, ALMACENAR, PROCESAR Y AFECTAR AL PROCESAMIENTO DE LOS DATOS DE SEGURIDAD; Y UNA SEGUNDA CAPA CONDUCTORA (CN2) QUE SE SUPERPONE A LOS ELEMENTOS DE CIRCUITO PARA DEFINIR CON ELLO UNA ZONA DE SEGURIDAD (11) EN LA QUE LOS DATOS DE SEGURIDAD ESTAN PROTEGIDOS DE UNA POSIBLE INSPECCION, Y ESTA ACOPLADA A LOS ELEMENTOS DE CIRCUITO PARA CONDUCIR A LOS MISMOS UNA SEÑAL PREDETERMINADA QUE ES ESENCIAL PARA UNA FUNCION CONCEBIDA DE LOS ELEMENTOS DE CIRCUITO PROTEGIDOS, POR LO QUE LA ELIMINACION DE LA SEGUNDA CAPA CONDUCTORA IMPIDE EL SUMINISTRO DELA SEÑAL ESENCIAL PREDETERMINADA A LOS ELEMENTOS DE CIRCUITO Y, POR ELLO, IMPIDE LA FUNCION CONCEBIDA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/297,472 US4933898A (en) | 1989-01-12 | 1989-01-12 | Secure integrated circuit chip with conductive shield |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2134188T3 true ES2134188T3 (es) | 1999-10-01 |
Family
ID=23146461
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99102130T Expired - Lifetime ES2214760T3 (es) | 1989-01-12 | 1990-01-04 | Circuito integrado protegido con pantalla conductora. |
ES90300090T Expired - Lifetime ES2134188T3 (es) | 1989-01-12 | 1990-01-04 | Chip con circuito integrado, de seguridad, con pantalla conductora. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99102130T Expired - Lifetime ES2214760T3 (es) | 1989-01-12 | 1990-01-04 | Circuito integrado protegido con pantalla conductora. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4933898A (es) |
EP (2) | EP0920057B1 (es) |
JP (1) | JPH0787237B2 (es) |
KR (1) | KR0180521B1 (es) |
AU (1) | AU617026B2 (es) |
CA (1) | CA2007469C (es) |
DE (2) | DE69033241T2 (es) |
DK (2) | DK0378306T3 (es) |
ES (2) | ES2214760T3 (es) |
IE (1) | IE62793B1 (es) |
NO (2) | NO303808B1 (es) |
Families Citing this family (106)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5185717A (en) * | 1988-08-05 | 1993-02-09 | Ryoichi Mori | Tamper resistant module having logical elements arranged in multiple layers on the outer surface of a substrate to protect stored information |
US5502315A (en) * | 1989-09-07 | 1996-03-26 | Quicklogic Corporation | Electrically programmable interconnect structure having a PECVD amorphous silicon element |
US5989943A (en) * | 1989-09-07 | 1999-11-23 | Quicklogic Corporation | Method for fabrication of programmable interconnect structure |
US5027397A (en) * | 1989-09-12 | 1991-06-25 | International Business Machines Corporation | Data protection by detection of intrusion into electronic assemblies |
US5237610A (en) * | 1990-02-01 | 1993-08-17 | Scientific-Atlanta, Inc. | Independent external security module for a digitally upgradeable television signal decoder |
US5029207A (en) * | 1990-02-01 | 1991-07-02 | Scientific-Atlanta, Inc. | External security module for a television signal decoder |
US5199008A (en) * | 1990-03-14 | 1993-03-30 | Southwest Research Institute | Device for digitally measuring intervals of time |
US5780323A (en) * | 1990-04-12 | 1998-07-14 | Actel Corporation | Fabrication method for metal-to-metal antifuses incorporating a tungsten via plug |
US5181096A (en) * | 1990-04-12 | 1993-01-19 | Actel Corporation | Electrically programmable antifuse incorporating dielectric and amorphous silicon interlayer |
US5381035A (en) * | 1992-09-23 | 1995-01-10 | Chen; Wenn-Jei | Metal-to-metal antifuse including etch stop layer |
US5614756A (en) * | 1990-04-12 | 1997-03-25 | Actel Corporation | Metal-to-metal antifuse with conductive |
US5270983A (en) * | 1990-09-13 | 1993-12-14 | Ncr Corporation | Single element security fusible link |
US5086410A (en) * | 1990-09-14 | 1992-02-04 | National Semiconductor Corporation | Non-erasable eprom cell for redundancy circuit |
US5053992A (en) * | 1990-10-04 | 1991-10-01 | General Instrument Corporation | Prevention of inspection of secret data stored in encapsulated integrated circuit chip |
JP2960560B2 (ja) | 1991-02-28 | 1999-10-06 | 株式会社日立製作所 | 超小型電子機器 |
FR2674060B1 (fr) * | 1991-03-14 | 1993-05-28 | Gemplus Card Int | Procede de programmation pour memoire integree, notamment pour carte a memoire. |
US5196724A (en) * | 1991-04-26 | 1993-03-23 | Quicklogic Corporation | Programmable interconnect structures and programmable integrated circuits |
US5072331A (en) * | 1991-04-26 | 1991-12-10 | Hughes Aircraft Company | Secure circuit structure |
US5557136A (en) * | 1991-04-26 | 1996-09-17 | Quicklogic Corporation | Programmable interconnect structures and programmable integrated circuits |
US5701027A (en) * | 1991-04-26 | 1997-12-23 | Quicklogic Corporation | Programmable interconnect structures and programmable integrated circuits |
WO1992021154A1 (en) * | 1991-05-10 | 1992-11-26 | Quicklogic Corporation | Amorphous silicon antifuses and methods for fabrication thereof |
US5243226A (en) * | 1991-07-31 | 1993-09-07 | Quicklogic Corporation | Programming of antifuses |
US5327024A (en) * | 1992-07-02 | 1994-07-05 | Quicklogic Corporation | Field programmable antifuse device and programming method therefor |
US5302546A (en) * | 1991-07-31 | 1994-04-12 | Quicklogic Corporation | Programming of antifuses |
US5544070A (en) * | 1991-07-31 | 1996-08-06 | Quicklogic Corporation | Programmed programmable device and method for programming antifuses of a programmable device |
KR940005696B1 (ko) * | 1991-11-25 | 1994-06-22 | 현대전자산업 주식회사 | 보안성 있는 롬(rom)소자 |
US5233563A (en) * | 1992-01-13 | 1993-08-03 | Ncr Corporation | Memory security device |
US5610981A (en) * | 1992-06-04 | 1997-03-11 | Integrated Technologies Of America, Inc. | Preboot protection for a data security system with anti-intrusion capability |
US5327497A (en) * | 1992-06-04 | 1994-07-05 | Integrated Technologies Of America, Inc. | Preboot protection of unauthorized use of programs and data with a card reader interface |
US5293133A (en) * | 1992-08-27 | 1994-03-08 | Quicklogic Corporation | Method of determining an electrical characteristic of an antifuse and apparatus therefor |
US5455455A (en) * | 1992-09-14 | 1995-10-03 | Badehi; Peirre | Methods for producing packaged integrated circuit devices and packaged integrated circuit devices produced thereby |
US5465341A (en) * | 1992-10-23 | 1995-11-07 | Vlsi Technology, Inc. | Verifiable security circuitry for preventing unauthorized access to programmed read only memory |
US5444780A (en) * | 1993-07-22 | 1995-08-22 | International Business Machines Corporation | Client/server based secure timekeeping system |
US5394106A (en) * | 1993-08-31 | 1995-02-28 | Gadzoox Microsystems | Apparatus and method for synthesis of signals with programmable periods |
IL106892A0 (en) * | 1993-09-02 | 1993-12-28 | Pierre Badehi | Methods and apparatus for producing integrated circuit devices |
US5533123A (en) * | 1994-06-28 | 1996-07-02 | National Semiconductor Corporation | Programmable distributed personal security |
US6117707A (en) * | 1994-07-13 | 2000-09-12 | Shellcase Ltd. | Methods of producing integrated circuit devices |
US5495181A (en) * | 1994-12-01 | 1996-02-27 | Quicklogic Corporation | Integrated circuit facilitating simultaneous programming of multiple antifuses |
US5535168A (en) * | 1994-12-01 | 1996-07-09 | Motorola, Inc. | Method and apparatus for selectively erasing memory to extend battery life |
US5552720A (en) * | 1994-12-01 | 1996-09-03 | Quicklogic Corporation | Method for simultaneous programming of multiple antifuses |
AU6502896A (en) * | 1995-07-20 | 1997-02-18 | Dallas Semiconductor Corporation | Single chip microprocessor, math co-processor, random number generator, real-time clock and ram having a one-wire interface |
US5824571A (en) * | 1995-12-20 | 1998-10-20 | Intel Corporation | Multi-layered contacting for securing integrated circuits |
US5861652A (en) * | 1996-03-28 | 1999-01-19 | Symbios, Inc. | Method and apparatus for protecting functions imbedded within an integrated circuit from reverse engineering |
US5602053A (en) * | 1996-04-08 | 1997-02-11 | Chartered Semidconductor Manufacturing Pte, Ltd. | Method of making a dual damascene antifuse structure |
DE19634135C2 (de) * | 1996-08-23 | 1998-07-02 | Siemens Ag | Halbleiterschaltung, insbesondere zur Verwendung in einem integrierten Baustein |
DE19639033C1 (de) * | 1996-09-23 | 1997-08-07 | Siemens Ag | Analysierschutz für einen Halbleiterchip |
US5898776A (en) * | 1996-11-21 | 1999-04-27 | Quicklogic Corporation | Security antifuse that prevents readout of some but not other information from a programmed field programmable gate array |
US5959466A (en) | 1997-01-31 | 1999-09-28 | Actel Corporation | Field programmable gate array with mask programmed input and output buffers |
US5861662A (en) * | 1997-02-24 | 1999-01-19 | General Instrument Corporation | Anti-tamper bond wire shield for an integrated circuit |
US6150837A (en) * | 1997-02-28 | 2000-11-21 | Actel Corporation | Enhanced field programmable gate array |
JPH1116365A (ja) * | 1997-06-20 | 1999-01-22 | Oki Micro Design Miyazaki:Kk | アドレスデコーダおよび半導体記憶装置、並びに半導体装置 |
US7246098B1 (en) * | 1997-07-15 | 2007-07-17 | Silverbrook Research Pty Ltd | Consumable authentication protocol and system |
US7743262B2 (en) * | 1997-07-15 | 2010-06-22 | Silverbrook Research Pty Ltd | Integrated circuit incorporating protection from power supply attacks |
US7249109B1 (en) * | 1997-07-15 | 2007-07-24 | Silverbrook Research Pty Ltd | Shielding manipulations of secret data |
US7249108B1 (en) * | 1997-07-15 | 2007-07-24 | Silverbrook Research Pty Ltd | Validation protocol and system |
US6137318A (en) * | 1997-12-09 | 2000-10-24 | Oki Electric Industry Co., Ltd. | Logic circuit having dummy MOS transistor |
DE19810730A1 (de) * | 1998-03-12 | 1999-09-16 | Philips Patentverwaltung | Microcontrollerschaltung |
US6140212A (en) * | 1998-06-01 | 2000-10-31 | Motorola, Inc. | Semiconductor device and method therefor |
US6816968B1 (en) * | 1998-07-10 | 2004-11-09 | Silverbrook Research Pty Ltd | Consumable authentication protocol and system |
DE59914529D1 (de) * | 1998-08-18 | 2007-11-29 | Infineon Technologies Ag | Halbleiterchip mit oberflächenabdeckung |
EP0981162B1 (de) * | 1998-08-19 | 2007-03-07 | Infineon Technologies AG | Halbleiterchip mit Oberflächenabdeckung gegen optische Untersuchung der Schaltungsstruktur |
JP2000311943A (ja) | 1999-04-27 | 2000-11-07 | Mitsubishi Electric Corp | 半導体装置 |
DE59914555D1 (de) * | 1999-06-01 | 2007-12-27 | Infineon Technologies Ag | Schutzschaltung |
EP1063589A1 (en) * | 1999-06-25 | 2000-12-27 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Device for processing data and corresponding method |
JP3454471B2 (ja) * | 1999-07-09 | 2003-10-06 | 沖電気工業株式会社 | 半導体装置 |
US6225652B1 (en) * | 1999-08-02 | 2001-05-01 | Clear Logic, Inc. | Vertical laser fuse structure allowing increased packing density |
US6518823B1 (en) * | 1999-08-31 | 2003-02-11 | Sony Computer Entertainment Inc. | One-time programmable logic device |
ATE405949T1 (de) * | 1999-11-16 | 2008-09-15 | Infineon Technologies Ag | Sicherheits-rom-speicherzelle und verfahren zu deren herstellung |
US7005733B2 (en) * | 1999-12-30 | 2006-02-28 | Koemmerling Oliver | Anti tamper encapsulation for an integrated circuit |
US6515304B1 (en) * | 2000-06-23 | 2003-02-04 | International Business Machines Corporation | Device for defeating reverse engineering of integrated circuits by optical means |
DE10044837C1 (de) * | 2000-09-11 | 2001-09-13 | Infineon Technologies Ag | Schaltungsanordnung und Verfahren zum Detektieren eines unerwünschten Angriffs auf eine integrierte Schaltung |
JP4184586B2 (ja) | 2000-09-28 | 2008-11-19 | 株式会社東芝 | 半導体記憶装置 |
US6815816B1 (en) | 2000-10-25 | 2004-11-09 | Hrl Laboratories, Llc | Implanted hidden interconnections in a semiconductor device for preventing reverse engineering |
US6608792B2 (en) * | 2000-11-09 | 2003-08-19 | Texas Instruments Incorporated | Method and apparatus for storing data in an integrated circuit |
DE10058078C1 (de) | 2000-11-23 | 2002-04-11 | Infineon Technologies Ag | Integrierte Schaltungsanordnung mit Analysierschutz und Verfahren zur Herstellung der Anordnung |
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US7294935B2 (en) * | 2001-01-24 | 2007-11-13 | Hrl Laboratories, Llc | Integrated circuits protected against reverse engineering and method for fabricating the same using an apparent metal contact line terminating on field oxide |
US6774413B2 (en) | 2001-06-15 | 2004-08-10 | Hrl Laboratories, Llc | Integrated circuit structure with programmable connector/isolator |
US6740942B2 (en) | 2001-06-15 | 2004-05-25 | Hrl Laboratories, Llc. | Permanently on transistor implemented using a double polysilicon layer CMOS process with buried contact |
US7049667B2 (en) | 2002-09-27 | 2006-05-23 | Hrl Laboratories, Llc | Conductive channel pseudo block process and circuit to inhibit reverse engineering |
US6979606B2 (en) | 2002-11-22 | 2005-12-27 | Hrl Laboratories, Llc | Use of silicon block process step to camouflage a false transistor |
WO2004055868A2 (en) | 2002-12-13 | 2004-07-01 | Hrl Laboratories, Llc | Integrated circuit modification using well implants |
EP1514166B1 (en) * | 2003-04-15 | 2012-01-11 | NDS Limited | Secure clock |
JP4758621B2 (ja) * | 2003-08-28 | 2011-08-31 | パナソニック株式会社 | 基本セル、端部セル、配線形状、配線方法、シールド線の配線構造 |
FR2864667B1 (fr) * | 2003-12-29 | 2006-02-24 | Commissariat Energie Atomique | Protection d'une puce de circuit integre contenant des donnees confidentielles |
FR2868577A1 (fr) * | 2004-03-31 | 2005-10-07 | St Microelectronics Sa | Dispositif de detection d'attaque d'une puce de circuit integre |
US7242063B1 (en) | 2004-06-29 | 2007-07-10 | Hrl Laboratories, Llc | Symmetric non-intrusive and covert technique to render a transistor permanently non-operable |
US7015823B1 (en) * | 2004-10-15 | 2006-03-21 | Systran Federal Corporation | Tamper resistant circuit boards |
FR2879296A1 (fr) * | 2004-12-14 | 2006-06-16 | St Microelectronics Sa | Invalidation d'un circuit integre |
DE102005005622B4 (de) * | 2005-02-08 | 2008-08-21 | Infineon Technologies Ag | Sicherheits-Chipstapel und ein Verfahren zum Herstellen eines Sicherheits-Chipstapels |
US7281667B2 (en) * | 2005-04-14 | 2007-10-16 | International Business Machines Corporation | Method and structure for implementing secure multichip modules for encryption applications |
FR2888975B1 (fr) * | 2005-07-21 | 2007-09-07 | Atmel Corp | Procede de securisation pour la protection de donnees |
FR2893436B1 (fr) * | 2005-11-15 | 2008-02-15 | Oberthur Card Syst Sa | Securisation entre des composants electroniques d'une entite electronique securisee portable |
US20070150754A1 (en) * | 2005-12-22 | 2007-06-28 | Pauly Steven J | Secure software system and method for a printer |
US7623378B1 (en) * | 2006-05-02 | 2009-11-24 | Lattice Semiconductor Corporation | Selective programming of non-volatile memory facilitated by security fuses |
US8168487B2 (en) | 2006-09-28 | 2012-05-01 | Hrl Laboratories, Llc | Programmable connection and isolation of active regions in an integrated circuit using ambiguous features to confuse a reverse engineer |
US8255702B1 (en) | 2009-12-03 | 2012-08-28 | Altera Corporation | Programmable logic device with improved security |
US20120210438A1 (en) * | 2011-02-15 | 2012-08-16 | Guobiao Zhang | Secure Three-Dimensional Mask-Programmed Read-Only Memory |
US9218511B2 (en) * | 2011-06-07 | 2015-12-22 | Verisiti, Inc. | Semiconductor device having features to prevent reverse engineering |
US9437555B2 (en) | 2011-06-07 | 2016-09-06 | Verisiti, Inc. | Semiconductor device having features to prevent reverse engineering |
US9287879B2 (en) | 2011-06-07 | 2016-03-15 | Verisiti, Inc. | Semiconductor device having features to prevent reverse engineering |
US8975748B1 (en) | 2011-06-07 | 2015-03-10 | Secure Silicon Layer, Inc. | Semiconductor device having features to prevent reverse engineering |
JP5692179B2 (ja) * | 2012-07-24 | 2015-04-01 | カシオ計算機株式会社 | システムlsi及びプログラム消去方法 |
EA201591224A1 (ru) * | 2013-01-11 | 2016-02-29 | Верисити, Инк. | Полупроводниковое устройство, обладающее свойствами для предотвращения обратного проектирования |
DE102013214214A1 (de) | 2013-07-19 | 2015-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Löschen von Informationen und Vorrichtung zur Durchführung desselben |
DE102020202721A1 (de) | 2020-03-03 | 2021-09-09 | Infineon Technologies Ag | Datenspeicher und verfahren zum bereitstellen desselben |
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FR2569054B1 (fr) * | 1984-08-10 | 1986-11-28 | Eurotechnique Sa | Dispositif de neutralisation de l'acces a une zone a proteger d'un circuit integre |
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GB2182176B (en) * | 1985-09-25 | 1989-09-20 | Ncr Co | Data security device for protecting stored data |
ATE67897T1 (de) * | 1985-10-22 | 1991-10-15 | Siemens Ag | Integrierte halbleiterschaltung mit einem elektrisch leitenden flaechenelement. |
-
1989
- 1989-01-12 US US07/297,472 patent/US4933898A/en not_active Expired - Lifetime
-
1990
- 1990-01-02 IE IE390A patent/IE62793B1/en not_active IP Right Cessation
- 1990-01-04 ES ES99102130T patent/ES2214760T3/es not_active Expired - Lifetime
- 1990-01-04 ES ES90300090T patent/ES2134188T3/es not_active Expired - Lifetime
- 1990-01-04 DK DK90300090T patent/DK0378306T3/da active
- 1990-01-04 DE DE69033241T patent/DE69033241T2/de not_active Expired - Fee Related
- 1990-01-04 DE DE1990634125 patent/DE69034125T2/de not_active Expired - Fee Related
- 1990-01-04 EP EP99102130A patent/EP0920057B1/en not_active Expired - Lifetime
- 1990-01-04 EP EP90300090A patent/EP0378306B1/en not_active Expired - Lifetime
- 1990-01-04 DK DK99102130T patent/DK0920057T3/da active
- 1990-01-04 AU AU47669/90A patent/AU617026B2/en not_active Ceased
- 1990-01-10 KR KR1019900000211A patent/KR0180521B1/ko not_active IP Right Cessation
- 1990-01-10 CA CA002007469A patent/CA2007469C/en not_active Expired - Fee Related
- 1990-01-10 NO NO900114A patent/NO303808B1/no unknown
- 1990-01-11 JP JP2004397A patent/JPH0787237B2/ja not_active Expired - Fee Related
-
1997
- 1997-12-19 NO NO975981A patent/NO975981L/no unknown
Also Published As
Publication number | Publication date |
---|---|
DE69034125T2 (de) | 2004-11-18 |
NO900114L (no) | 1990-07-13 |
KR0180521B1 (ko) | 1999-04-15 |
AU617026B2 (en) | 1991-11-14 |
EP0378306B1 (en) | 1999-08-11 |
NO303808B1 (no) | 1998-08-31 |
KR900012345A (ko) | 1990-08-03 |
DE69033241D1 (de) | 1999-09-16 |
NO975981D0 (no) | 1997-12-19 |
JPH02232960A (ja) | 1990-09-14 |
ES2214760T3 (es) | 2004-09-16 |
CA2007469A1 (en) | 1990-07-12 |
IE62793B1 (en) | 1995-03-08 |
DE69033241T2 (de) | 2000-02-03 |
EP0378306A3 (en) | 1991-12-04 |
EP0920057B1 (en) | 2004-01-02 |
CA2007469C (en) | 1994-08-16 |
EP0920057A2 (en) | 1999-06-02 |
DK0920057T3 (da) | 2004-05-10 |
EP0920057A3 (en) | 2000-01-12 |
DK0378306T3 (da) | 2000-03-13 |
AU4766990A (en) | 1990-07-19 |
NO900114D0 (no) | 1990-01-10 |
NO975981L (no) | 1997-12-19 |
EP0378306A2 (en) | 1990-07-18 |
US4933898A (en) | 1990-06-12 |
IE900003L (en) | 1990-07-12 |
DE69034125D1 (de) | 2004-02-05 |
JPH0787237B2 (ja) | 1995-09-20 |
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