DE69736463T2 - Vorrichtung zum erfassen eines magnetfeldes - Google Patents

Vorrichtung zum erfassen eines magnetfeldes Download PDF

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Publication number
DE69736463T2
DE69736463T2 DE69736463T DE69736463T DE69736463T2 DE 69736463 T2 DE69736463 T2 DE 69736463T2 DE 69736463 T DE69736463 T DE 69736463T DE 69736463 T DE69736463 T DE 69736463T DE 69736463 T2 DE69736463 T2 DE 69736463T2
Authority
DE
Germany
Prior art keywords
conductors
magnetoresistive
magnetoresistive element
sensitive areas
sensitive
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 - Fee Related
Application number
DE69736463T
Other languages
German (de)
English (en)
Other versions
DE69736463D1 (de
Inventor
Reinder Coehoorn
Constant Jacques KOOLS
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE69736463D1 publication Critical patent/DE69736463D1/de
Publication of DE69736463T2 publication Critical patent/DE69736463T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • G11B5/397—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1673—Reading or sensing circuits or methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1675—Writing or programming circuits or methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)
DE69736463T 1996-12-04 1997-11-13 Vorrichtung zum erfassen eines magnetfeldes Expired - Fee Related DE69736463T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96203430 1996-12-04
EP96203430 1996-12-04
PCT/IB1997/001438 WO1998025155A2 (en) 1996-12-04 1997-11-13 Device for detecting a magnetic field

Publications (2)

Publication Number Publication Date
DE69736463D1 DE69736463D1 (de) 2006-09-21
DE69736463T2 true DE69736463T2 (de) 2007-04-19

Family

ID=8224659

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69736463T Expired - Fee Related DE69736463T2 (de) 1996-12-04 1997-11-13 Vorrichtung zum erfassen eines magnetfeldes

Country Status (5)

Country Link
US (1) US6075361A (cg-RX-API-DMAC7.html)
EP (1) EP0880711B1 (cg-RX-API-DMAC7.html)
JP (1) JP2000504430A (cg-RX-API-DMAC7.html)
DE (1) DE69736463T2 (cg-RX-API-DMAC7.html)
WO (1) WO1998025155A2 (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948026B4 (de) * 1999-10-06 2009-06-10 Robert Bosch Gmbh Schaltung und Verfahren zur Feststellung eines magnetischen Feldes

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3623366B2 (ja) * 1998-07-17 2005-02-23 アルプス電気株式会社 巨大磁気抵抗効果素子を備えた磁界センサおよびその製造方法と製造装置
FR2787197B1 (fr) * 1998-12-11 2001-02-23 Thomson Csf Capteur de champ magnetique a magnetoresistance geante
US6538437B2 (en) * 2000-07-11 2003-03-25 Integrated Magnetoelectronics Corporation Low power magnetic anomaly sensor
FR2830621B1 (fr) 2001-10-09 2004-05-28 Commissariat Energie Atomique Structure pour capteur et capteur de champ magnetique
US7046117B2 (en) * 2002-01-15 2006-05-16 Honeywell International Inc. Integrated magnetic field strap for signal isolator
DE10213941A1 (de) * 2002-03-28 2003-10-30 Bosch Gmbh Robert Sensorelement und Gradiometeranordnung, deren Verwendung zum Messen von Magnetfeldgradienten und Verfahren hierzu
KR100462792B1 (ko) * 2002-08-31 2004-12-20 한국과학기술연구원 교환바이어스형 스핀밸브를 이용한 브리지센서 제조방법
US20100001723A1 (en) * 2004-12-28 2010-01-07 Koninklijke Philips Electronics, N.V. Bridge type sensor with tunable characteristic
US20070121254A1 (en) * 2005-11-29 2007-05-31 Honeywell International Inc. Protective and conductive layer for giant magnetoresistance
US8242776B2 (en) * 2008-03-26 2012-08-14 Everspin Technologies, Inc. Magnetic sensor design for suppression of barkhausen noise
US10809320B2 (en) 2015-04-29 2020-10-20 Everspin Technologies, Inc. Magnetic field sensor with increased SNR
US9910106B2 (en) * 2015-04-29 2018-03-06 Everspin Technologies, Inc. Magnetic field sensor with increased linearity
CN110007255B (zh) * 2017-12-21 2021-06-29 爱盛科技股份有限公司 磁场感测装置
JP7505684B2 (ja) 2021-10-06 2024-06-25 Tdk株式会社 磁気抵抗効果素子、磁気抵抗効果装置および磁気センサ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5021736A (en) * 1989-09-19 1991-06-04 Texas Instruments Incorporated Speed/position sensor calibration method with angular adjustment of a magnetoresistive element
EP0704061A1 (en) * 1994-04-15 1996-04-03 Koninklijke Philips Electronics N.V. A magnetic field sensor, an instrument comprising such a sensor and a method of manufacturing such a sensor
WO1996007926A1 (en) * 1994-08-28 1996-03-14 Philips Electronics N.V. Magnetic field detector device
US5712612A (en) * 1996-01-02 1998-01-27 Hewlett-Packard Company Tunneling ferrimagnetic magnetoresistive sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19948026B4 (de) * 1999-10-06 2009-06-10 Robert Bosch Gmbh Schaltung und Verfahren zur Feststellung eines magnetischen Feldes

Also Published As

Publication number Publication date
EP0880711A2 (en) 1998-12-02
JP2000504430A (ja) 2000-04-11
EP0880711B1 (en) 2006-08-09
DE69736463D1 (de) 2006-09-21
WO1998025155A3 (en) 1998-10-01
US6075361A (en) 2000-06-13
WO1998025155A2 (en) 1998-06-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee