DE2263077C3 - Magnetoresistives Bauelement - Google Patents

Magnetoresistives Bauelement

Info

Publication number
DE2263077C3
DE2263077C3 DE2263077A DE2263077A DE2263077C3 DE 2263077 C3 DE2263077 C3 DE 2263077C3 DE 2263077 A DE2263077 A DE 2263077A DE 2263077 A DE2263077 A DE 2263077A DE 2263077 C3 DE2263077 C3 DE 2263077C3
Authority
DE
Germany
Prior art keywords
magnetoresistive
layer
layers
magnetic field
component
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
Application number
DE2263077A
Other languages
German (de)
English (en)
Other versions
DE2263077B2 (de
DE2263077A1 (de
Inventor
Jean-Pierre Villiers Saint Frederic Lazzari
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.)
Bull SA
Original Assignee
Bull SA
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 Bull SA filed Critical Bull SA
Publication of DE2263077A1 publication Critical patent/DE2263077A1/de
Publication of DE2263077B2 publication Critical patent/DE2263077B2/de
Application granted granted Critical
Publication of DE2263077C3 publication Critical patent/DE2263077C3/de
Expired legal-status Critical Current

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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film structure
    • 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
    • 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
    • G11B5/398—Specially shaped layers
    • 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
    • H10N50/10—Magnetoresistive devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Heads (AREA)
DE2263077A 1971-12-22 1972-12-22 Magnetoresistives Bauelement Expired DE2263077C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7146103A FR2165206A5 (US20110009641A1-20110113-C00116.png) 1971-12-22 1971-12-22

Publications (3)

Publication Number Publication Date
DE2263077A1 DE2263077A1 (de) 1973-07-05
DE2263077B2 DE2263077B2 (de) 1975-03-13
DE2263077C3 true DE2263077C3 (de) 1984-03-29

Family

ID=9087872

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2263077A Expired DE2263077C3 (de) 1971-12-22 1972-12-22 Magnetoresistives Bauelement

Country Status (5)

Country Link
US (1) US3848217A (US20110009641A1-20110113-C00116.png)
DE (1) DE2263077C3 (US20110009641A1-20110113-C00116.png)
FR (1) FR2165206A5 (US20110009641A1-20110113-C00116.png)
GB (1) GB1364348A (US20110009641A1-20110113-C00116.png)
NL (1) NL160119C (US20110009641A1-20110113-C00116.png)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7309590A (nl) * 1973-07-10 1975-01-14 Philips Nv Inrichting voor het sturen van de positie van een magneetkop ten opzichte van een te volgen informatiespoor.
US3860965A (en) * 1973-10-04 1975-01-14 Ibm Magnetoresistive read head assembly having matched elements for common mode rejection
US3864751A (en) * 1973-10-04 1975-02-04 Ibm Induced bias magnetoresistive read transducer
FR2248566B1 (US20110009641A1-20110113-C00116.png) * 1973-10-23 1976-11-19 Cii
JPS561567B2 (US20110009641A1-20110113-C00116.png) * 1973-11-17 1981-01-14
US3949346A (en) * 1973-11-17 1976-04-06 Sony Corporation Magnetoresistive element
US3921218A (en) * 1973-12-26 1975-11-18 Honeywell Inf Systems Thin film magnetoresistive transducers with rotated magnetic easy axis
US4052748A (en) * 1974-04-01 1977-10-04 U.S. Philips Corporation Magnetoresistive magnetic head
NL164410C (nl) * 1974-04-01 1980-12-15 Philips Nv Magnetoweerstand magneetkop.
NL7405727A (nl) * 1974-04-29 1975-10-31 Philips Nv Magnetoweerstandkop.
US3975772A (en) * 1975-06-02 1976-08-17 International Business Machines Corporation Double shielded magnetorestive sensing element
NL7611522A (nl) * 1976-10-19 1978-04-21 Philips Nv Magnetoweerstand leeskop met onderdrukking van thermischhe ruis.
FR2390778A1 (fr) * 1977-05-13 1978-12-08 Cii Honeywell Bull Dispositif de lecture d'informations magnetiques
GB2003647B (en) * 1977-09-02 1982-05-06 Magnex Corp Thin film magnetic recording heads
US4141051A (en) * 1977-10-11 1979-02-20 U.S. Philips Corporation Variable dynamic range magneto-resistive head
FR2428875A1 (fr) * 1978-06-16 1980-01-11 Cii Honeywell Bull Procede et appareil de lecture d'informations codees magnetiquement
CH651151A5 (de) * 1979-11-27 1985-08-30 Landis & Gyr Ag Messwandler zum messen eines insbesondere von einem messstrom erzeugten magnetfeldes.
DE3014459A1 (de) * 1980-04-15 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Abgeschirmter magnetoresistiver sensor zum abtasten von informationsspuren eines magnetischen aufzeichungstraegers
US4414510A (en) * 1980-05-28 1983-11-08 General Electric Company Low cost sensing system and method employing anistropic magneto-resistive ferrite member
JPS58166527A (ja) * 1982-03-29 1983-10-01 Nec Corp 磁気抵抗効果ヘツド
JPS58166510A (ja) * 1982-03-29 1983-10-01 Toshiba Corp 磁気再生装置
US4504787A (en) * 1982-04-05 1985-03-12 Honeywell Inc. Electronic watthour meter
US4566050A (en) * 1982-12-30 1986-01-21 International Business Machines Corp. (Ibm) Skew insensitive magnetic read head
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
US4580175A (en) * 1983-01-14 1986-04-01 Magnetic Peripherals, Inc. Endless, folded magnetoresistive head
US4476454A (en) * 1983-06-30 1984-10-09 International Business Machines Corporation New magnetoresistive materials
GB2169434B (en) * 1984-11-24 1989-09-20 Magnetic Components Limited Magnetoresistive sensors
FR2582862B1 (fr) * 1985-05-30 1987-07-17 Thomson Csf Capteur a effet magneto-resistif lineaire, son procede de realisation et son application dans un detecteur de domaines magnetiques
US5001586A (en) * 1989-08-01 1991-03-19 International Business Machines Corporation Very low noise magnetoresistive sensor for high density media applications
DE3929452A1 (de) * 1989-09-05 1991-03-07 Asea Brown Boveri Strom-messeinrichtung
US6600631B1 (en) 1989-11-27 2003-07-29 Censtor Corp. Transducer/flexure/conductor structure for electromagnetic read/write system
US5155642A (en) * 1989-11-29 1992-10-13 International Business Machines Corporation Anisotropy configuration for longitudinally constrained magnetoresistive transducers
MY108176A (en) * 1991-02-08 1996-08-30 Hitachi Global Storage Tech Netherlands B V Magnetoresistive sensor based on oscillations in the magnetoresistance
US6002252A (en) * 1991-05-22 1999-12-14 Wolff Controls Corporation Compact sensing apparatus having transducer and signal conditioner with a plurality of mounting pins
US6219205B1 (en) * 1995-10-10 2001-04-17 Read-Rite Corporation High density giant magnetoresistive transducer with recessed sensor
US5959812A (en) * 1997-07-25 1999-09-28 Imation Corp. Fringe field compensation system for multi-track servo recording head
DE69937921T2 (de) * 1998-03-27 2009-01-02 National Institute Of Advanced Industrial Science And Technology, Independent Administrative Institution Anwendung von einem Magnetowiderstand mit geordneter Doppelperovskitestruktur und deren Herstellungsverfahren
JP2002025017A (ja) * 2000-07-10 2002-01-25 Tdk Corp 磁気抵抗効果型薄膜磁気ヘッド
FR2902890B1 (fr) * 2006-06-22 2008-11-07 Commissariat Energie Atomique Procede et systeme pour ajuster la sensibilite d'un capteur magnetoresistif
US8422177B2 (en) * 2010-04-30 2013-04-16 Seagate Technology Llc Reader shield with tilted magnetization

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207443B (de) * 1959-07-02 1965-12-23 Siemens Ag Abnahmekopf fuer magnetische Aufzeichnungen
CH405426A (de) * 1961-12-21 1966-01-15 Ibm Magnetkopf zum Aufzeichnen und Ablesen von digitalen Signalen
US3493694A (en) * 1966-01-19 1970-02-03 Ampex Magnetoresistive head
US3480926A (en) * 1967-06-16 1969-11-25 Sperry Rand Corp Synthetic bulk element having thin-ferromagnetic-film switching characteristics
DE1765807A1 (de) * 1968-07-19 1971-10-07 Siemens Ag Magnetfeldabhaengiger Widerstand
BE758054A (fr) * 1969-10-28 1971-04-01 Commissariat Energie Atomique Circuit magnetique a faible reluctance
DE2121443A1 (de) * 1970-04-30 1971-11-25 Ampex Verfahren zur Auslesung des magnetischen Inhalts eines magnetischen Mediums unter Verwendung eines magnetoresistiven opfes

Also Published As

Publication number Publication date
DE2263077B2 (de) 1975-03-13
FR2165206A5 (US20110009641A1-20110113-C00116.png) 1973-08-03
GB1364348A (en) 1974-08-21
NL160119C (nl) 1979-09-17
DE2263077A1 (de) 1973-07-05
NL7217495A (US20110009641A1-20110113-C00116.png) 1973-06-26
NL160119B (nl) 1979-04-17
US3848217A (en) 1974-11-12

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Legal Events

Date Code Title Description
BGA New person/name/address of the applicant
8281 Inventor (new situation)

Free format text: LAZZARI, JEAN-PIERRE, VILLIERS SAINT FREDERIC, FR

C3 Grant after two publication steps (3rd publication)