GB2109992B - Magnetoelectric conversion element - Google Patents

Magnetoelectric conversion element

Info

Publication number
GB2109992B
GB2109992B GB08218795A GB8218795A GB2109992B GB 2109992 B GB2109992 B GB 2109992B GB 08218795 A GB08218795 A GB 08218795A GB 8218795 A GB8218795 A GB 8218795A GB 2109992 B GB2109992 B GB 2109992B
Authority
GB
United Kingdom
Prior art keywords
conversion element
magnetoelectric conversion
magnetoelectric
conversion
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
GB08218795A
Other languages
English (en)
Other versions
GB2109992A (en
Inventor
Kanji Kawakami
Shinji Narishige
Masahide Suenaga
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2109992A publication Critical patent/GB2109992A/en
Application granted granted Critical
Publication of GB2109992B publication Critical patent/GB2109992B/en
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
    • G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
    • G11B5/3935—Flux closure films not being part of the track flux guides
    • 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
    • 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
    • G11B5/3958—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition
    • G11B5/3961—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement
    • G11B5/3964—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement for transducing on a single track
    • 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
    • G11B5/3987—Specially shaped layers with provision for closing the magnetic flux during operation
    • 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
    • G11B5/399—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 with intrinsic biasing, e.g. provided by equipotential strips
    • 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)
  • Mathematical Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
GB08218795A 1981-07-01 1982-06-29 Magnetoelectric conversion element Expired GB2109992B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56101183A JPS584992A (ja) 1981-07-01 1981-07-01 磁気電気変換素子

Publications (2)

Publication Number Publication Date
GB2109992A GB2109992A (en) 1983-06-08
GB2109992B true GB2109992B (en) 1985-07-10

Family

ID=14293870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08218795A Expired GB2109992B (en) 1981-07-01 1982-06-29 Magnetoelectric conversion element

Country Status (4)

Country Link
US (1) US4503394A (enExample)
JP (1) JPS584992A (enExample)
GB (1) GB2109992B (enExample)
NL (1) NL8202634A (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3390321T1 (de) * 1982-11-11 1985-01-24 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Dünnfilm-Magnetkopf
US4580175A (en) * 1983-01-14 1986-04-01 Magnetic Peripherals, Inc. Endless, folded magnetoresistive head
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
JPH0756508B2 (ja) * 1984-09-14 1995-06-14 富士通株式会社 磁気検出器
JPS61199684A (ja) * 1985-03-01 1986-09-04 Hitachi Ltd 磁気抵抗効果型素子
US4802043A (en) * 1985-03-25 1989-01-31 Hitachi, Ltd. Magneto-resistive head for protecting against output spike noises
NL8601371A (nl) * 1986-05-29 1987-12-16 Philips Nv Magneetkop.
US5019461A (en) * 1986-12-08 1991-05-28 Honeywell Inc. Resistive overlayer for thin film devices
US4857418A (en) * 1986-12-08 1989-08-15 Honeywell Inc. Resistive overlayer for magnetic films
US4754431A (en) * 1987-01-28 1988-06-28 Honeywell Inc. Vialess shorting bars for magnetoresistive devices
US4967298A (en) * 1987-02-17 1990-10-30 Mowry Greg S Magnetic head with magnetoresistive sensor, inductive write head, and shield
US4841398A (en) * 1987-02-17 1989-06-20 Magnetic Peripherals Inc. Non linear magnetoresistive sensor
JPS63202979A (ja) * 1987-02-18 1988-08-22 Alps Electric Co Ltd エンコ−ダ用磁気センサ
JPH01178816A (ja) * 1988-01-11 1989-07-17 Alps Electric Co Ltd 磁気センサ
US4918655A (en) * 1988-02-29 1990-04-17 Honeywell Inc. Magnetic device integrated circuit interconnection system
US4914538A (en) * 1988-08-18 1990-04-03 International Business Machines Corporation Magnetoresistive read transducer
US4847584A (en) * 1988-10-14 1989-07-11 Honeywell Inc. Magnetoresistive magnetic sensor
JPH0434713A (ja) * 1990-05-30 1992-02-05 Sony Corp 磁気抵抗効果型薄膜ヘッド
US5268806A (en) * 1992-01-21 1993-12-07 International Business Machines Corporation Magnetoresistive transducer having tantalum lead conductors
US5260652A (en) * 1992-03-25 1993-11-09 Seagate Technology, Inc. Magnetoresistive sensor with electrical contacts having variable resistive regions for enhanced sensor sensitivity
US5669133A (en) * 1992-08-25 1997-09-23 Seagate Technology, Inc. Method of making a magnetoresistive sensor
US5435070A (en) * 1993-07-26 1995-07-25 Honeywell Inc. Simplified compass with multiple segment display capability
US6166539A (en) * 1996-10-30 2000-12-26 Regents Of The University Of Minnesota Magnetoresistance sensor having minimal hysteresis problems
US5747997A (en) * 1996-06-05 1998-05-05 Regents Of The University Of Minnesota Spin-valve magnetoresistance sensor having minimal hysteresis problems
US6201466B1 (en) * 2000-03-29 2001-03-13 Delphi Technologies, Inc. Magnetoresistor array
DE112013004975B4 (de) 2012-10-12 2024-08-08 Memsic Inc. Monolithischer Drei-Achsen-Magnetfeldsensor
JP2016186476A (ja) * 2015-03-27 2016-10-27 Tdk株式会社 磁気センサ及び磁気式エンコーダ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899341A (en) * 1973-04-30 1975-08-12 Didier Werke Ag Refractory fired shaped element and process of its manufacture
US4052748A (en) * 1974-04-01 1977-10-04 U.S. Philips Corporation Magnetoresistive magnetic head
CA1076252A (en) * 1975-04-14 1980-04-22 Frederik W. Gorter Magnetoresistive head
US4024489A (en) * 1975-11-18 1977-05-17 International Business Machines Corporation Magnetoresistive sandwich including sensor electrically parallel with electrical shunt and magnetic biasing layers
NL7804377A (nl) * 1978-04-25 1979-10-29 Philips Nv Magnetoweerstandkop.
NL7901578A (nl) * 1979-02-28 1980-09-01 Philips Nv Magnetoweerstandkop.

Also Published As

Publication number Publication date
JPH0157511B2 (enExample) 1989-12-06
NL8202634A (nl) 1983-02-01
US4503394A (en) 1985-03-05
JPS584992A (ja) 1983-01-12
GB2109992A (en) 1983-06-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000629