SG42849A1 - Multilayer magnetoresistive sensor - Google Patents

Multilayer magnetoresistive sensor

Info

Publication number
SG42849A1
SG42849A1 SG1996000132A SG1996000132A SG42849A1 SG 42849 A1 SG42849 A1 SG 42849A1 SG 1996000132 A SG1996000132 A SG 1996000132A SG 1996000132 A SG1996000132 A SG 1996000132A SG 42849 A1 SG42849 A1 SG 42849A1
Authority
SG
Singapore
Prior art keywords
magnetoresistive
sensing element
layers
elements
ferromagnetic
Prior art date
Application number
SG1996000132A
Other languages
English (en)
Inventor
Kevin John Coffey
Robert Edward Fontana
James Kent Howard
Todd Lanier Hylton
Michael Andrew Parker
Ching Hwa Tsang
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of SG42849A1 publication Critical patent/SG42849A1/en

Links

Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N50/00—Galvanomagnetic devices
    • H10N50/80—Constructional details
    • H10N50/85—Magnetic active materials
    • 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
    • G11B2005/3996—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 large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Heads (AREA)
  • Thin Magnetic Films (AREA)
SG1996000132A 1993-12-23 1994-12-16 Multilayer magnetoresistive sensor SG42849A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/173,590 US5452163A (en) 1993-12-23 1993-12-23 Multilayer magnetoresistive sensor

Publications (1)

Publication Number Publication Date
SG42849A1 true SG42849A1 (en) 1997-10-17

Family

ID=22632713

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996000132A SG42849A1 (en) 1993-12-23 1994-12-16 Multilayer magnetoresistive sensor

Country Status (13)

Country Link
US (1) US5452163A (fr)
EP (1) EP0660127B1 (fr)
JP (1) JP2784461B2 (fr)
KR (1) KR0146012B1 (fr)
CN (1) CN1068689C (fr)
AT (1) ATE221999T1 (fr)
BR (1) BR9405159A (fr)
CA (1) CA2134711A1 (fr)
DE (1) DE69431149T2 (fr)
MY (1) MY116219A (fr)
PH (1) PH30835A (fr)
SG (1) SG42849A1 (fr)
TW (1) TW277132B (fr)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657190A (en) * 1993-03-02 1997-08-12 Tdk Corporation Apparatus for detecting a magnetic field using a giant magnetoresistance effect multilayer
US6021065A (en) * 1996-09-06 2000-02-01 Nonvolatile Electronics Incorporated Spin dependent tunneling memory
US6275411B1 (en) 1993-07-23 2001-08-14 Nonvolatile Electronics, Incorporated Spin dependent tunneling memory
DE4425356C2 (de) * 1993-09-29 1998-07-02 Siemens Ag Magnetoresistiver Sensor unter Verwendung eines Sensormaterials mit perowskitähnlicher Kristallstruktur
US6002553A (en) * 1994-02-28 1999-12-14 The United States Of America As Represented By The United States Department Of Energy Giant magnetoresistive sensor
EP0676746B1 (fr) * 1994-03-09 1999-08-04 Eastman Kodak Company Tête de reproduction magnétorésistive à spin-valve duale
US5874886A (en) * 1994-07-06 1999-02-23 Tdk Corporation Magnetoresistance effect element and magnetoresistance device
FR2722918B1 (fr) * 1994-07-21 1996-08-30 Commissariat Energie Atomique Capteur a magnetoresistance multicouche autopolarisee
US5648031A (en) * 1994-07-28 1997-07-15 Custom Plastics Molding, Inc. Method of forming antislip surfaces on thermoformed products
JP2694806B2 (ja) * 1994-08-29 1997-12-24 日本電気株式会社 磁気抵抗効果素子およびその製造方法
JPH0877519A (ja) * 1994-09-08 1996-03-22 Fujitsu Ltd 磁気抵抗効果型トランスジューサ
EP0731969B1 (fr) * 1994-10-05 1999-12-01 Koninklijke Philips Electronics N.V. Dispositif multicouche magnetique comprenant une structure a double barriere et a tunnel de resonance
JPH08180328A (ja) * 1994-12-21 1996-07-12 Fujitsu Ltd スピンバルブ磁気抵抗効果素子及びその製造方法
US5773156A (en) * 1995-01-26 1998-06-30 Kabushiki Kaisha Toshiba Magnetoresistance effect element
US6510031B1 (en) * 1995-03-31 2003-01-21 International Business Machines Corporation Magnetoresistive sensor with magnetostatic coupling to obtain opposite alignment of magnetic regions
US6064083A (en) 1995-04-21 2000-05-16 Johnson; Mark B. Hybrid hall effect memory device and method of operation
US7050329B2 (en) * 1995-04-21 2006-05-23 Johnson Mark B Magnetic spin based memory with inductive write lines
US6169687B1 (en) 1995-04-21 2001-01-02 Mark B. Johnson High density and speed magneto-electronic memory for use in computing system
US6741494B2 (en) 1995-04-21 2004-05-25 Mark B. Johnson Magnetoelectronic memory element with inductively coupled write wires
US6140838A (en) 1995-04-21 2000-10-31 Johnson; Mark B. High density and high speed magneto-electronic logic family
US5652445A (en) * 1995-04-21 1997-07-29 Johnson; Mark B. Hybrid hall effect device and method of operation
US5585986A (en) * 1995-05-15 1996-12-17 International Business Machines Corporation Digital magnetoresistive sensor based on the giant magnetoresistance effect
US5701222A (en) * 1995-09-11 1997-12-23 International Business Machines Corporation Spin valve sensor with antiparallel magnetization of pinned layers
JPH09205234A (ja) * 1996-01-26 1997-08-05 Nec Corp 磁気抵抗効果素子及び磁気抵抗効果センサ
JP3669457B2 (ja) 1996-03-19 2005-07-06 富士通株式会社 磁気記録媒体及びその製造方法
US5739987A (en) * 1996-06-04 1998-04-14 Read-Rite Corporation Magnetoresistive read transducers with multiple longitudinal stabilization layers
US5747997A (en) * 1996-06-05 1998-05-05 Regents Of The University Of Minnesota Spin-valve magnetoresistance sensor having minimal hysteresis problems
US6166539A (en) * 1996-10-30 2000-12-26 Regents Of The University Of Minnesota Magnetoresistance sensor having minimal hysteresis problems
US5793279A (en) * 1996-08-26 1998-08-11 Read-Rite Corporation Methods and compositions for optimizing interfacial properties of magnetoresistive sensors
US5666248A (en) * 1996-09-13 1997-09-09 International Business Machines Corporation Magnetizations of pinned and free layers of a spin valve sensor set by sense current fields
US5737157A (en) * 1996-10-09 1998-04-07 International Business Machines Corporation Disk drive with a thermal asperity reduction circuitry using a magnetoresistive sensor
US5880915A (en) 1996-10-21 1999-03-09 International Business Machines Corporation Crack resistant magnetic write head
AU6343898A (en) * 1997-02-28 1998-09-18 University And Community College System Of Nevada Magnetoresistive scanning system
US5923505A (en) * 1997-03-17 1999-07-13 Read-Rite Corporation Magnetoresistive sensor having a pinned soft magnetic layer
US6191495B1 (en) * 1997-06-10 2001-02-20 Lucent Technologies Inc. Micromagnetic device having an anisotropic ferromagnetic core and method of manufacture therefor
US6440750B1 (en) 1997-06-10 2002-08-27 Agere Systems Guardian Corporation Method of making integrated circuit having a micromagnetic device
US5867351A (en) * 1997-07-25 1999-02-02 International Business Machines Corporation Spin valve read head with low moment, high coercivity pinning layer
JPH1196515A (ja) * 1997-09-18 1999-04-09 Fujitsu Ltd Ｇｍｒ磁気センサ、その製造方法、および磁気ヘッド
EP0948788B1 (fr) * 1997-10-29 2004-07-14 Koninklijke Philips Electronics N.V. Detecteur de champ magnetique a jonction spin-tunnel
US6147900A (en) * 1997-11-06 2000-11-14 Nonvolatile Electronics, Incorporated Spin dependent tunneling memory
US6337215B1 (en) * 1997-12-01 2002-01-08 International Business Machines Corporation Magnetic particles having two antiparallel ferromagnetic layers and attached affinity recognition molecules
DE19854713B4 (de) * 1998-05-13 2005-03-10 Mitsubishi Electric Corp Magnetfeld-Erfassungselement
JP3544141B2 (ja) * 1998-05-13 2004-07-21 三菱電機株式会社 磁気検出素子および磁気検出装置
US6239595B1 (en) * 1998-05-13 2001-05-29 Mitsubishi Denki Kabushiki Kaisha Magnetic field sensing element
US6529114B1 (en) * 1998-05-27 2003-03-04 Honeywell International Inc. Magnetic field sensing device
DE19843349A1 (de) * 1998-09-22 2000-03-23 Bosch Gmbh Robert Magnetoresistives Sensorelement, insbesondere Winkelsensorelement
US6178074B1 (en) * 1998-11-19 2001-01-23 International Business Machines Corporation Double tunnel junction with magnetoresistance enhancement layer
US6255714B1 (en) 1999-06-22 2001-07-03 Agere Systems Guardian Corporation Integrated circuit having a micromagnetic device including a ferromagnetic core and method of manufacture therefor
US6421212B1 (en) * 1999-09-21 2002-07-16 Read-Rite Corporation Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication
US6600637B1 (en) * 1999-10-28 2003-07-29 Seagate Technology, L.L.C. Edge barrier to prevent spin valve sensor corrosion and improve long term reliability
US6404601B1 (en) 2000-01-25 2002-06-11 Read-Rite Corporation Merged write head with magnetically isolated poletip
US6307774B1 (en) 2000-03-22 2001-10-23 Mark B. Johnson Magnetoelectronic memory array
JP4074192B2 (ja) * 2000-09-19 2008-04-09 シーゲイト テクノロジー エルエルシー 自己無撞着減磁場を有する巨大磁気抵抗センサ
US6885527B1 (en) * 2000-10-26 2005-04-26 Headway Technologies, Inc. Process to manufacture a top spin valve
US6724586B2 (en) * 2001-03-27 2004-04-20 Hitachi Global Storage Technologies Netherlands B.V. Bias structure for magnetic tunnel junction magnetoresistive sensor
US20020145832A1 (en) * 2001-04-04 2002-10-10 Seagate Technology Llc Perpendicular magnetic recording head with soft underlayer biasing
US6794862B2 (en) * 2001-05-08 2004-09-21 Ramot At Tel-Aviv University Ltd. Magnetic thin film sensor based on the extraordinary hall effect
US6709767B2 (en) 2001-07-31 2004-03-23 Hitachi Global Storage Technologies Netherlands B.V. In-situ oxidized films for use as cap and gap layers in a spin-valve sensor and methods of manufacture
DE10258860A1 (de) * 2002-12-17 2004-07-15 Robert Bosch Gmbh Magnetoresistives Schichtsystem und Sensorelement mit diesem Schichtsystem
US20050013060A1 (en) * 2003-07-14 2005-01-20 International Business Machines Corporation Magnetoresistive sensor
US7158353B2 (en) * 2003-11-06 2007-01-02 Seagate Technology Llc Magnetoresistive sensor having specular sidewall layers
EP1690263B1 (fr) * 2003-11-24 2013-05-08 Crocus Technology, Inc. Indicateur de retention des donnees pour memoires magnetiques
JP4538614B2 (ja) * 2007-10-12 2010-09-08 株式会社東芝 磁気抵抗効果素子の設計方法及び磁気ランダムアクセスメモリの設計方法
US8093892B2 (en) * 2008-07-24 2012-01-10 Infineon Technologies Ag System with 90 degree sense layer magnetic orientation
US8907666B2 (en) * 2011-09-30 2014-12-09 HGST Netherlands B.V. Magnetic bias structure for magnetoresistive sensor having a scissor structure
US8995073B1 (en) * 2013-03-14 2015-03-31 Seagate Technology Llc Data storage mediums and devices having bit patterned media
CN104900800A (zh) * 2014-03-03 2015-09-09 北京嘉岳同乐极电子有限公司 用于磁敏传感器的gmr磁性纳米多层膜
US10483320B2 (en) 2015-12-10 2019-11-19 Everspin Technologies, Inc. Magnetoresistive stack with seed region and method of manufacturing the same
FR3068476B1 (fr) * 2017-06-28 2019-08-02 Centre National De La Recherche Scientifique Dispositif de mesure de champs magnetiques faibles
WO2020106552A1 (fr) * 2018-11-19 2020-05-28 Everspin Technologies, Inc. Empilement à magnétorésistance et son procédé de fabrication
US11719772B2 (en) 2020-04-01 2023-08-08 Analog Devices International Unlimited Company AMR (XMR) sensor with increased linear range
CN115265605B (zh) * 2021-12-01 2024-03-12 苏州纳芯微电子股份有限公司 传感器电路及运动数据检测装置
CN115077571A (zh) * 2021-12-09 2022-09-20 苏州纳芯微电子股份有限公司 运动数据检测装置及其传感器电路

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US134533A (en) * 1873-01-07 Improvement in spring motive powers
JPH07105006B2 (ja) * 1985-11-05 1995-11-13 ソニー株式会社 磁気抵抗効果型磁気ヘツド
JP2613239B2 (ja) * 1988-02-26 1997-05-21 株式会社日立製作所 磁気抵抗効果型ヘツド
DE3820475C1 (fr) * 1988-06-16 1989-12-21 Kernforschungsanlage Juelich Gmbh, 5170 Juelich, De
US4914538A (en) * 1988-08-18 1990-04-03 International Business Machines Corporation Magnetoresistive read transducer
FR2648942B1 (fr) * 1989-06-27 1995-08-11 Thomson Csf Capteur a effet magnetoresistif
US5032945A (en) * 1989-11-07 1991-07-16 International Business Machines Corp. Magnetic thin film structures fabricated with edge closure layers
US5206590A (en) * 1990-12-11 1993-04-27 International Business Machines Corporation Magnetoresistive sensor based on the spin valve effect
JPH0536032A (ja) * 1991-08-01 1993-02-12 Hitachi Ltd 磁気抵抗効果型ヘツド及びその製造方法
FR2693021B1 (fr) * 1992-06-26 1994-08-26 Thomson Csf Détecteur de champ magnétique.
US5343422A (en) * 1993-02-23 1994-08-30 International Business Machines Corporation Nonvolatile magnetoresistive storage device using spin valve effect

Also Published As

Publication number Publication date
EP0660127A2 (fr) 1995-06-28
TW277132B (fr) 1996-06-01
ATE221999T1 (de) 2002-08-15
BR9405159A (pt) 1995-08-01
KR0146012B1 (ko) 1998-10-15
CA2134711A1 (fr) 1995-06-24
EP0660127A3 (fr) 1996-01-17
US5452163A (en) 1995-09-19
KR950020420A (ko) 1995-07-24
JPH07210832A (ja) 1995-08-11
CN1068689C (zh) 2001-07-18
DE69431149T2 (de) 2003-05-28
JP2784461B2 (ja) 1998-08-06
DE69431149D1 (de) 2002-09-12
EP0660127B1 (fr) 2002-08-07
PH30835A (en) 1997-11-03
CN1122498A (zh) 1996-05-15
MY116219A (en) 2003-12-31

Similar Documents

Publication Publication Date Title
TW277132B (fr)
EP0721563B1 (fr) Capteur de deplacement lineaire et angulaire et resistance variable magnetoresistifs
US5742162A (en) Magnetoresistive spin valve sensor with multilayered keeper
US4686472A (en) Magnetic sensor having closely spaced and electrically parallel magnetoresistive layers of different widths
EP0797187A3 (fr) Transducteurs magnétorésistifs à soupape de spin ayant des aimants permanents
US20010013776A1 (en) Magnetic field sensor with perpendicular axis sensitivity, comprising a giant magnetoresistance material of a spin tunnel junction
KR970017217A (ko) 이중 스핀 밸브 센서를 이용한 이중 저기저항 센서
CA2060561A1 (fr) Capteur magnetoresistif utilisant les oscillations dans une magnetoresistance
TW330285B (en) Spin valve magnetoresistive sensor with antiparallel pinned layer and improved exchange bias layer, and magnetic recording system using the sensor
MY110737A (en) Current biased magnetoresistive spin valve sensor
JP3596600B2 (ja) 磁気センサ及び同磁気センサの製造方法
KR970067965A (ko) 박막 자기 저항성 디바이스
KR960011854A (ko) 자기저항효과 박막 및 그 제조방법
KR970029372A (ko) 대규모 자기저항 재료 및 그 형성방법
JP2011101026A (ja) 磁気抵抗型積層構造体ならびに該構造体を備えたグラジオメータ
KR970018763A (ko) 자기저항 소자 및 센서
WO2002054097A3 (fr) Detecteur magnetoresistant de vanne de spin
CA1191606A (fr) Capteur magnetoresistif differentiel pour l'enregistrement vertical
WO1999008117A3 (fr) Capteur de champ magnetique
WO1998048291A2 (fr) Detecteur de champ magnetique avec pont de wheatstone
GB2089097A (en) A magnetoresistive transducer for reading a record carrier having a high data density
EP0738896A2 (fr) Capteur avec tête de lecture magnétorésistive accouplé alternant
JP2004117367A (ja) 磁気センサ及び同磁気センサの製造方法
JPS57141013A (en) Thin film magnetic sensor
JPS57141014A (en) Thin film magnetic sensor