DE69725123D1 - Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern - Google Patents

Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern

Info

Publication number
DE69725123D1
DE69725123D1 DE69725123T DE69725123T DE69725123D1 DE 69725123 D1 DE69725123 D1 DE 69725123D1 DE 69725123 T DE69725123 T DE 69725123T DE 69725123 T DE69725123 T DE 69725123T DE 69725123 D1 DE69725123 D1 DE 69725123D1
Authority
DE
Germany
Prior art keywords
magnetic core
means connected
electromagnetic head
magnetoresistive means
magnetoresistive
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
Application number
DE69725123T
Other languages
English (en)
Inventor
Bruno Murari
Benedetto Vigna
Paolo Ferrari
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.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Application granted granted Critical
Publication of DE69725123D1 publication Critical patent/DE69725123D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
    • G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being thin films
    • 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
    • G11B5/3176—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps
    • G11B5/3179—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes
    • G11B5/3183—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes intersecting the gap plane, e.g. "horizontal head structure"

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69725123T 1997-07-04 1997-07-04 Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern Expired - Lifetime DE69725123D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97830337A EP0889460B1 (de) 1997-07-04 1997-07-04 Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern

Publications (1)

Publication Number Publication Date
DE69725123D1 true DE69725123D1 (de) 2003-10-30

Family

ID=8230696

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69725123T Expired - Lifetime DE69725123D1 (de) 1997-07-04 1997-07-04 Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern

Country Status (4)

Country Link
US (1) US6134088A (de)
EP (1) EP0889460B1 (de)
JP (1) JPH1173613A (de)
DE (1) DE69725123D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198607B1 (en) * 1995-12-22 2001-03-06 Censtor Corporation Contact planar magnetoresistive head
US6430010B1 (en) * 1999-05-03 2002-08-06 Seagate Technology, Llc. Disc drive reader with reduced off-track pickup

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921217A (en) * 1971-12-27 1975-11-18 Ibm Three-legged magnetic recording head using a magnetorestive element
US3881191A (en) * 1972-05-19 1975-04-29 Ibm Three-gap magnetic recording head having a single flux sensing means
JPS51150315A (en) * 1975-06-18 1976-12-23 Nec Corp Magnetic head
JPS55142412A (en) * 1979-04-21 1980-11-07 Sony Corp Multi-gap magnetic head of magnetic flux response type
US4438470A (en) * 1981-07-20 1984-03-20 Canon Kabushiki Kaisha Magnetic head of magnetic reluctance effect type and a method for making the same
JPS5977618A (ja) * 1982-10-27 1984-05-04 Sony Corp 磁気抵抗効果形磁気ヘツド
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
US4626946A (en) * 1984-02-28 1986-12-02 International Business Machines Corporation Twin track vertical read-write head structure
FR2575314B1 (fr) * 1984-12-20 1987-01-23 Bull Sa Transducteur magnetique d'ecriture pour enregistrement transversal
JPS626422A (ja) * 1985-06-29 1987-01-13 Toshiba Corp 磁気ヘツド
JPS626420A (ja) * 1985-07-01 1987-01-13 Toshiba Corp 薄膜磁気ヘツド
JPH0664718B2 (ja) * 1985-07-01 1994-08-22 株式会社東芝 薄膜磁気ヘツド
US4782415A (en) * 1985-10-02 1988-11-01 International Business Machines Corp. Differential twin track vertical read/write magnetic head structure
JPS62137712A (ja) * 1985-12-09 1987-06-20 Sharp Corp 薄膜磁気ヘツド
US4754354A (en) * 1986-05-05 1988-06-28 Eastman Kodak Company Ferrite film insulating layer in a yoke-type magneto-resistive head
JP2507710B2 (ja) * 1986-08-20 1996-06-19 関西日本電気株式会社 ヨ−ク型薄膜磁気ヘツド
FR2604021B1 (fr) * 1986-09-17 1988-10-28 Commissariat Energie Atomique Procede de realisation de tetes magnetiques en couches minces et a structure planaire et tete obtenue par ce procede
FR2612676B1 (fr) * 1987-03-19 1993-12-31 Commissariat A Energie Atomique Tete magnetique de lecture pour piste de tres faible largeur et procede de fabrication
US5103553A (en) * 1987-07-29 1992-04-14 Digital Equipment Corporation Method of making a magnetic recording head
JPH02128313A (ja) * 1988-11-08 1990-05-16 Matsushita Electric Ind Co Ltd 磁気抵抗効果型薄膜磁気ヘッド
FR2645314B1 (fr) * 1989-03-29 1991-05-31 Commissariat Energie Atomique Tete magnetique a magnetoresistance pour enregistrement longitudinal et procede de realisation d'une telle tete
JPH03286413A (ja) * 1990-04-02 1991-12-17 Matsushita Electric Ind Co Ltd 磁気抵抗郊果型ヘッド
JP3200060B2 (ja) * 1990-09-12 2001-08-20 ソニー株式会社 薄膜磁気ヘッド
US5673163A (en) * 1992-10-20 1997-09-30 Cohen; Uri Pinched-gap magnetic recording thin film head
US5434733A (en) * 1994-02-18 1995-07-18 Hewlett-Packard Company Planar head having separate read and write gaps
US5436779A (en) * 1994-03-31 1995-07-25 Read-Rite Corporation Integrated yoke magnetoresistive transducer with magnetic shunt
FR2724482B1 (fr) * 1994-09-13 1996-12-06 Commissariat Energie Atomique Tete magnetique a magnetoresistance multicouche longitudinale sous-jacente
FR2727778B1 (fr) * 1994-12-02 1997-01-03 Commissariat Energie Atomique Codeur magnetique pour la lecture de marques sur une piste magnetique associee

Also Published As

Publication number Publication date
EP0889460B1 (de) 2003-09-24
US6134088A (en) 2000-10-17
JPH1173613A (ja) 1999-03-16
EP0889460A1 (de) 1999-01-07

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Legal Events

Date Code Title Description
8332 No legal effect for de