WO2000005693A3 - Security device comprising soft magnetic thin film - Google Patents

Security device comprising soft magnetic thin film Download PDF

Info

Publication number
WO2000005693A3
WO2000005693A3 PCT/EP1999/004942 EP9904942W WO0005693A3 WO 2000005693 A3 WO2000005693 A3 WO 2000005693A3 EP 9904942 W EP9904942 W EP 9904942W WO 0005693 A3 WO0005693 A3 WO 0005693A3
Authority
WO
WIPO (PCT)
Prior art keywords
thin film
security device
magnetic thin
soft magnetic
ranging
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.)
Ceased
Application number
PCT/EP1999/004942
Other languages
French (fr)
Other versions
WO2000005693A2 (en
Inventor
Lintelo Johannes Te
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.)
Innovative Sputtering Technology IST NV
Original Assignee
Innovative Sputtering Technology IST NV
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 Innovative Sputtering Technology IST NV filed Critical Innovative Sputtering Technology IST NV
Priority to AU51593/99A priority Critical patent/AU5159399A/en
Priority to DE69903352T priority patent/DE69903352T2/en
Priority to AT99936527T priority patent/ATE225549T1/en
Priority to EP99936527A priority patent/EP1145204B1/en
Publication of WO2000005693A2 publication Critical patent/WO2000005693A2/en
Anticipated expiration legal-status Critical
Publication of WO2000005693A3 publication Critical patent/WO2000005693A3/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/13—Amorphous metallic alloys, e.g. glassy metals
    • H01F10/132—Amorphous metallic alloys, e.g. glassy metals containing cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/265—Magnetic multilayers non exchange-coupled

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Heads (AREA)
  • Burglar Alarm Systems (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

A security device such as an anti-pilferage label or authentication label comprises as security feature a (first) soft-magnetic thin film having a thickness ranging from 100 nm to 2000 nm. The thin film is composed of an amorphous CoxZryNbz alloy, where x, y and z are atomic percentages and fulfil following conditions: (a) x ranging between 80 and 95; (b) y and z ranging between 0 and 20; (c) y + z = 100 - x. Due to the high effective relative permeability νr, and the direction of its easy axis, a label with a CoZrNb thin film is relatively independent of its geometry.
PCT/EP1999/004942 1998-07-20 1999-07-12 Security device comprising soft magnetic thin film Ceased WO2000005693A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU51593/99A AU5159399A (en) 1998-07-20 1999-07-12 Security device comprising soft magnetic thin film
DE69903352T DE69903352T2 (en) 1998-07-20 1999-07-12 SECURING DEVICE WITH SOFT MAGNETIC THIN LAYER
AT99936527T ATE225549T1 (en) 1998-07-20 1999-07-12 SAFETY DEVICE WITH SOFT MAGNETIC THIN FILM
EP99936527A EP1145204B1 (en) 1998-07-20 1999-07-12 Security device comprising soft magnetic thin film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98202418 1998-07-20
EP98202418.4 1998-07-20

Publications (2)

Publication Number Publication Date
WO2000005693A2 WO2000005693A2 (en) 2000-02-03
WO2000005693A3 true WO2000005693A3 (en) 2002-02-07

Family

ID=8233948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004942 Ceased WO2000005693A2 (en) 1998-07-20 1999-07-12 Security device comprising soft magnetic thin film

Country Status (5)

Country Link
EP (1) EP1145204B1 (en)
AT (1) ATE225549T1 (en)
AU (1) AU5159399A (en)
DE (1) DE69903352T2 (en)
WO (1) WO2000005693A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6024749A (en) * 1997-10-27 2000-02-15 Shturman Cardiology Systems, Inc. Rotational atherectomy device with improved exchangeable drive shaft cartridge
DE10339559B4 (en) * 2003-08-26 2006-03-02 W.C. Heraeus Gmbh Method for determining the position of component carriers
CN101393794B (en) 2007-09-20 2010-12-08 中国印钞造币总公司 Magnetically coded thin film material and preparation method thereof
CN101391557B (en) * 2007-09-20 2011-10-12 中国印钞造币总公司 Film with false proof function and anti-counterfeiting object containing film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0147126A2 (en) * 1983-12-16 1985-07-03 Hitachi, Ltd. Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same
EP0295028A1 (en) * 1987-06-08 1988-12-14 Esselte Meto International GmbH Magnetic devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0147126A2 (en) * 1983-12-16 1985-07-03 Hitachi, Ltd. Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same
EP0295028A1 (en) * 1987-06-08 1988-12-14 Esselte Meto International GmbH Magnetic devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ROUABHI M ET AL: "DOMAIN WALL PINNING AND HYSTERESIS LOSSES IN AMORPHOUS CONBZR FILMS", IEEE TRANSACTIONS ON MAGNETICS, vol. 29, no. 6, 1 November 1993 (1993-11-01), pages 3502 - 3504, XP000429390 *

Also Published As

Publication number Publication date
DE69903352T2 (en) 2003-07-10
WO2000005693A2 (en) 2000-02-03
AU5159399A (en) 2000-02-14
ATE225549T1 (en) 2002-10-15
DE69903352D1 (en) 2002-11-07
EP1145204B1 (en) 2002-10-02
EP1145204A2 (en) 2001-10-17

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