DE69317598T2 - Magnetresistiver Wandler - Google Patents

Magnetresistiver Wandler

Info

Publication number
DE69317598T2
DE69317598T2 DE69317598T DE69317598T DE69317598T2 DE 69317598 T2 DE69317598 T2 DE 69317598T2 DE 69317598 T DE69317598 T DE 69317598T DE 69317598 T DE69317598 T DE 69317598T DE 69317598 T2 DE69317598 T2 DE 69317598T2
Authority
DE
Germany
Prior art keywords
magnetic resistive
resistive converter
converter
magnetic
resistive
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
DE69317598T
Other languages
English (en)
Other versions
DE69317598D1 (de
Inventor
James A Brug
Thomas C Anthony
Victor W Hesterman
Steven Naberhuis
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE69317598D1 publication Critical patent/DE69317598D1/de
Publication of DE69317598T2 publication Critical patent/DE69317598T2/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
    • G11B5/127—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
    • G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
    • G11B5/3932—Magnetic biasing 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
    • G11B5/33—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
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • G11B5/3951—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes
    • G11B5/3954—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes the active elements transducing on a single track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Heads (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measuring Magnetic Variables (AREA)
DE69317598T 1992-06-05 1993-05-06 Magnetresistiver Wandler Expired - Fee Related DE69317598T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/894,415 US5307226A (en) 1992-06-05 1992-06-05 Improved magnetoresistive transducer with substantially perpendicular easy axis

Publications (2)

Publication Number Publication Date
DE69317598D1 DE69317598D1 (de) 1998-04-30
DE69317598T2 true DE69317598T2 (de) 1998-07-09

Family

ID=25403048

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69317598T Expired - Fee Related DE69317598T2 (de) 1992-06-05 1993-05-06 Magnetresistiver Wandler

Country Status (4)

Country Link
US (1) US5307226A (de)
EP (1) EP0573149B1 (de)
JP (1) JPH0661547A (de)
DE (1) DE69317598T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717327A (en) * 1995-09-22 1998-02-10 Bradford; Melvin J. Current sensor
US6249064B1 (en) 1998-06-05 2001-06-19 Seagate Technology Llc Magneto-striction microactuator
US6987692B2 (en) * 2003-10-03 2006-01-17 Hewlett-Packard Development Company, L.P. Magnetic memory having angled third conductor
US7463459B2 (en) * 2004-02-18 2008-12-09 Hitachi Global Storage Technologies Netherlands B.V. Self-pinned read sensor design with enhanced lead stabilizing mechanism
WO2019146347A1 (ja) * 2018-01-25 2019-08-01 株式会社村田製作所 磁気センサおよび電流センサ

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716781A (en) * 1971-10-26 1973-02-13 Ibm Magnetoresistive sensing device for detection of magnetic fields having a shape anisotropy field and uniaxial anisotropy field which are perpendicular
US3921218A (en) * 1973-12-26 1975-11-18 Honeywell Inf Systems Thin film magnetoresistive transducers with rotated magnetic easy axis
US4001890A (en) * 1974-08-05 1977-01-04 Honeywell Information Systems, Inc. Double chip flying head
JPS5317713A (en) * 1976-08-02 1978-02-18 Matsushita Electric Ind Co Ltd Thin film magnetic head
US4103315A (en) * 1977-06-24 1978-07-25 International Business Machines Corporation Antiferromagnetic-ferromagnetic exchange bias films
US4356523A (en) * 1980-06-09 1982-10-26 Ampex Corporation Narrow track magnetoresistive transducer assembly
FR2502375B1 (fr) * 1981-03-20 1989-08-18 Cii Honeywell Bull Transducteur magnetoresistant de lecture d'informations a tres haute densite
JPS6029917A (ja) * 1983-07-28 1985-02-15 Nec Corp 磁気抵抗効果ヘッドの製造方法
US4626946A (en) * 1984-02-28 1986-12-02 International Business Machines Corporation Twin track vertical read-write head structure
EP0326192A3 (de) * 1984-02-28 1989-09-06 International Business Machines Corporation Magnetoresistive verkoppelte Dünnfilme für magnetische Flussabtastung
US4833560A (en) * 1987-06-26 1989-05-23 Eastman Kodak Company Self-biased magnetoresistive reproduce head
JPS6442015A (en) * 1987-08-10 1989-02-14 Hitachi Ltd Magneto-resistance effect type thin film head
US4987509A (en) * 1989-10-05 1991-01-22 Hewlett-Packard Company Magnetoresistive head structures for longitudinal and perpendicular transition detection
JPH0664719B2 (ja) * 1989-11-29 1994-08-22 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン 磁気抵抗性の読み出しトランスジユーサ・アセンブリ

Also Published As

Publication number Publication date
JPH0661547A (ja) 1994-03-04
EP0573149B1 (de) 1998-03-25
EP0573149A2 (de) 1993-12-08
US5307226A (en) 1994-04-26
DE69317598D1 (de) 1998-04-30
EP0573149A3 (en) 1994-05-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE

8339 Ceased/non-payment of the annual fee