DE69815490D1 - Einkanal-magnetkopf mit magnetoresistivem element - Google Patents

Einkanal-magnetkopf mit magnetoresistivem element

Info

Publication number
DE69815490D1
DE69815490D1 DE69815490T DE69815490T DE69815490D1 DE 69815490 D1 DE69815490 D1 DE 69815490D1 DE 69815490 T DE69815490 T DE 69815490T DE 69815490 T DE69815490 T DE 69815490T DE 69815490 D1 DE69815490 D1 DE 69815490D1
Authority
DE
Germany
Prior art keywords
magnetoresistive element
magnet head
channel magnet
channel
head
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
DE69815490T
Other languages
English (en)
Other versions
DE69815490T2 (de
Inventor
Josephus Ruigrok
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 DE69815490D1 publication Critical patent/DE69815490D1/de
Publication of DE69815490T2 publication Critical patent/DE69815490T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • 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
    • 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
    • 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
    • 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
    • G11B5/3945—Heads comprising more than one sensitive element
    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
    • G11B25/063—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape using tape inside container

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
DE69815490T 1997-02-20 1998-01-22 Einkanal-magnetkopf mit magnetoresistivem element Expired - Fee Related DE69815490T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97200486 1997-02-20
EP97200486 1997-02-20
PCT/IB1998/000094 WO1998037551A2 (en) 1997-02-20 1998-01-22 Single-channel magnetic head with magnetoresistive element

Publications (2)

Publication Number Publication Date
DE69815490D1 true DE69815490D1 (de) 2003-07-17
DE69815490T2 DE69815490T2 (de) 2004-04-15

Family

ID=8228028

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69815490T Expired - Fee Related DE69815490T2 (de) 1997-02-20 1998-01-22 Einkanal-magnetkopf mit magnetoresistivem element

Country Status (8)

Country Link
US (1) US5973889A (de)
EP (1) EP0935799B1 (de)
JP (1) JP2000508816A (de)
KR (1) KR100488638B1 (de)
CN (1) CN1098516C (de)
DE (1) DE69815490T2 (de)
TW (1) TW369649B (de)
WO (1) WO1998037551A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6747854B1 (en) * 1997-02-20 2004-06-08 Koninklijke Philips Electronics N.V. Multi-channel magnetic head with magnetoresistive elements
US6064552A (en) * 1997-03-18 2000-05-16 Kabushiki Kaisha Toshiba Magnetoresistive head having magnetic yoke and giant magnetoresistive element such that a first electrode is formed on the giant magnetoresistive element which in turn is formed on the magnetic yoke which acts as a second electrode
US6456465B1 (en) * 1999-11-09 2002-09-24 Read-Rite Corporation Vertical giant magnetoresistance sensor using a recessed shield

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8101962A (nl) * 1981-04-22 1982-11-16 Philips Nv Magnetische sensor.
JPH0421916A (ja) * 1990-05-16 1992-01-24 Sony Corp 磁気抵抗効果型薄膜ヘッド
US5390061A (en) * 1990-06-08 1995-02-14 Hitachi, Ltd. Multilayer magnetoresistance effect-type magnetic head
US5193039A (en) * 1991-04-17 1993-03-09 Digital Equipment Corporation Permanet magnet easy-axis biased magnetoresistive head
EP0617409B1 (de) * 1993-03-22 1999-07-28 Koninklijke Philips Electronics N.V. Herstellungsverfahren eines Dünnfilmmagnetkopfes und danach hergestellter Magnetkopf
EP0617410B1 (de) * 1993-03-22 1999-09-22 OnStream, Inc. Herstellungsverfahren eines Dünnfilmmagnetkopfes und danach hergestellter Magnetkopf
JPH0778309A (ja) * 1993-07-14 1995-03-20 Sony Corp 薄膜磁気ヘッド及び磁気抵抗効果型磁気ヘッド並びに複合型磁気ヘッド
US5446613A (en) * 1994-02-28 1995-08-29 Read-Rite Corporation Magnetic head assembly with MR sensor
EP0725936A1 (de) * 1994-08-28 1996-08-14 Koninklijke Philips Electronics N.V. Magnetfelddetektor
US5493467A (en) * 1994-12-27 1996-02-20 International Business Machines Corporation Yoke spin valve MR read head
US5515221A (en) * 1994-12-30 1996-05-07 International Business Machines Corporation Magnetically stable shields for MR head
US5627704A (en) * 1996-02-12 1997-05-06 Read-Rite Corporation Thin film giant magnetoresistive CPP transducer with flux guide yoke structure
US5668688A (en) * 1996-05-24 1997-09-16 Quantum Peripherals Colorado, Inc. Current perpendicular-to-the-plane spin valve type magnetoresistive transducer
US5729410A (en) * 1996-11-27 1998-03-17 International Business Machines Corporation Magnetic tunnel junction device with longitudinal biasing

Also Published As

Publication number Publication date
TW369649B (en) 1999-09-11
DE69815490T2 (de) 2004-04-15
WO1998037551A2 (en) 1998-08-27
EP0935799A1 (de) 1999-08-18
WO1998037551A3 (en) 1998-11-19
CN1098516C (zh) 2003-01-08
KR20000064955A (ko) 2000-11-06
JP2000508816A (ja) 2000-07-11
EP0935799B1 (de) 2003-06-11
CN1222998A (zh) 1999-07-14
US5973889A (en) 1999-10-26
KR100488638B1 (ko) 2005-09-07

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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