DE3882243T2 - Kopf mit einem magnetoresistiven Aufnehmer. - Google Patents

Kopf mit einem magnetoresistiven Aufnehmer.

Info

Publication number
DE3882243T2
DE3882243T2 DE88300683T DE3882243T DE3882243T2 DE 3882243 T2 DE3882243 T2 DE 3882243T2 DE 88300683 T DE88300683 T DE 88300683T DE 3882243 T DE3882243 T DE 3882243T DE 3882243 T2 DE3882243 T2 DE 3882243T2
Authority
DE
Germany
Prior art keywords
head
magnetoresistive sensor
magnetoresistive
sensor
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
DE88300683T
Other languages
English (en)
Other versions
DE3882243D1 (de
Inventor
Greg Stephen Mowry
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology International
Seagate Technology LLC
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 Seagate Technology International, Seagate Technology LLC filed Critical Seagate Technology International
Application granted granted Critical
Publication of DE3882243D1 publication Critical patent/DE3882243D1/de
Publication of DE3882243T2 publication Critical patent/DE3882243T2/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
    • G11B5/398—Specially shaped layers
    • 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
    • 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
    • G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
DE88300683T 1987-02-17 1988-01-27 Kopf mit einem magnetoresistiven Aufnehmer. Expired - Fee Related DE3882243T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/015,200 US4841398A (en) 1987-02-17 1987-02-17 Non linear magnetoresistive sensor

Publications (2)

Publication Number Publication Date
DE3882243D1 DE3882243D1 (de) 1993-08-19
DE3882243T2 true DE3882243T2 (de) 1993-10-28

Family

ID=21770067

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88300683T Expired - Fee Related DE3882243T2 (de) 1987-02-17 1988-01-27 Kopf mit einem magnetoresistiven Aufnehmer.

Country Status (6)

Country Link
US (1) US4841398A (de)
EP (1) EP0279535B1 (de)
JP (1) JP2590178B2 (de)
AU (1) AU1136288A (de)
CA (1) CA1322597C (de)
DE (1) DE3882243T2 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2761223B2 (ja) * 1988-09-30 1998-06-04 株式会社日立製作所 記録再生複合ヘッド及びその製造方法
US4956736A (en) * 1988-12-16 1990-09-11 Eastman Kodak Company Thin film magnetic element having a rhombic shape
US5065094A (en) * 1990-08-07 1991-11-12 Seagate Technology, Inc. Two terminal magnetoresistive sensor having DC blocking capacitor
JPH0512628A (ja) * 1991-07-02 1993-01-22 Sony Corp 複合型薄膜ヘツド
US5378885A (en) * 1991-10-29 1995-01-03 Mars Incorporated Unshielded magnetoresistive head with multiple pairs of sensing elements
US5475550A (en) * 1992-08-25 1995-12-12 Seagate Technology, Inc. Enhanced cross-talk suppression in magnetoresistive sensors
MY108956A (en) * 1992-11-12 1996-11-30 Quantum Peripherals Colorado Inc Magnetoresistive device and method having improved barkhausen noise suppression
WO1994027288A1 (en) * 1993-05-11 1994-11-24 Philips Electronics N.V. Magnetoresistive element having composite structure and thin film magnetic head incorporating same
JP2982931B2 (ja) * 1993-05-17 1999-11-29 富士通株式会社 磁気抵抗効果型ヘッド及びその製造方法
EP0627729A3 (en) * 1993-05-31 1995-11-02 Tdk Corp Magnetic recording/reproducing method.
US5452166A (en) * 1993-10-01 1995-09-19 Applied Magnetics Corporation Thin film magnetic recording head for minimizing undershoots and a method for manufacturing the same
JP2854513B2 (ja) * 1993-10-21 1999-02-03 アルプス電気株式会社 複合型薄膜磁気ヘッド及びその製造方法
DE4403932C2 (de) * 1994-02-08 1998-11-19 Siemens Ag Magnetoresistive Sensoreinrichtung mit einem magnetisch anisotropen Sensorteil
US5604651A (en) * 1994-02-23 1997-02-18 Applied Magentics Corporation Read head with 4-point magnetoresistive sensing
CN1195294C (zh) * 1994-03-10 2005-03-30 国际商业机器公司 边缘偏置的磁阻传感器、其制作方法及包括它的磁存储系统
US5483402A (en) * 1994-06-15 1996-01-09 Quantum Corporation Magneto resistive head having symmetric off-track performance profile
US5573809A (en) * 1995-06-05 1996-11-12 Quantum Peripherals Colorado, Inc. Process for forming a magnetoresistive device
US5532892A (en) * 1995-06-05 1996-07-02 Quantum Peripherals Colorado, Inc. Soft adjacent layer biased magnetoresistive device incorporating a natural flux closure design utilizing coplanar permanent magnet thin film stabilization
JP3388944B2 (ja) * 1995-06-06 2003-03-24 富士通株式会社 磁気ディスク装置及びその再生方法
US5654854A (en) * 1995-11-30 1997-08-05 Quantum Corporation Longitudinally biased magnetoresistive sensor having a concave shaped active region to reduce Barkhausen noise by achieving a substantially single magnetic domain state
DE19608730C2 (de) * 1996-03-06 1998-05-28 Siemens Ag Magnetfeldempfindlicher Sensor mit einem Dünnschichtaufbau und Verwendung des Sensors
US5930084A (en) 1996-06-17 1999-07-27 International Business Machines Corporation Stabilized MR sensor and flux guide joined by contiguous junction
US5696656A (en) * 1996-09-06 1997-12-09 International Business Machines Corporation Highly sensitive orthogonal spin valve read head
DE10014779B4 (de) * 2000-03-27 2011-11-10 Nxp B.V. MR-Winkelsensor
US20060245113A1 (en) * 2005-04-28 2006-11-02 Headway Technologies, Inc. Method to reduce sensitivity of a perpendicular recording head to external fields
US7599152B2 (en) * 2005-04-28 2009-10-06 Headway Technologies, Inc. Magnetic read-write head shield that prevents flux concentration at edges close to the ABS
US8599520B1 (en) * 2011-12-20 2013-12-03 Western Digital (Fremont), Llc Method and system for providing a read transducer having an adaptive read sensor track width
CN110440910B (zh) * 2019-08-22 2022-02-01 西门子工厂自动化工程有限公司 振动监测方法、装置、驱动系统、工控设备及存储介质
CN216434337U (zh) * 2021-11-19 2022-05-03 上海矽睿科技股份有限公司 抗干扰磁场传感器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887944A (en) * 1973-06-29 1975-06-03 Ibm Method for eliminating part of magnetic crosstalk in magnetoresistive sensors
FR2244225B1 (de) * 1973-09-19 1979-04-13 Cii Honeywell Bull
US4103315A (en) * 1977-06-24 1978-07-25 International Business Machines Corporation Antiferromagnetic-ferromagnetic exchange bias films
JPH0132183Y2 (de) * 1979-07-19 1989-10-03
JPS5758222A (en) * 1980-09-25 1982-04-07 Fujitsu Ltd Magnetic head
JPS584992A (ja) * 1981-07-01 1983-01-12 Hitachi Ltd 磁気電気変換素子
JPS58100217A (ja) * 1981-12-11 1983-06-14 Hitachi Ltd 磁気抵抗効果ヘツド
US4504880A (en) * 1982-08-09 1985-03-12 International Business Machines Corporation Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly
JPS6059518A (ja) * 1983-09-09 1985-04-05 Sharp Corp 薄膜磁気ヘッド
US4639806A (en) * 1983-09-09 1987-01-27 Sharp Kabushiki Kaisha Thin film magnetic head having a magnetized ferromagnetic film on the MR element
JPS61194620A (ja) * 1985-02-22 1986-08-29 Hitachi Ltd 薄膜磁気ヘツド

Also Published As

Publication number Publication date
JP2590178B2 (ja) 1997-03-12
JPS63204506A (ja) 1988-08-24
EP0279535A3 (en) 1990-01-10
DE3882243D1 (de) 1993-08-19
AU1136288A (en) 1988-08-18
EP0279535B1 (de) 1993-07-14
US4841398A (en) 1989-06-20
CA1322597C (en) 1993-09-28
EP0279535A2 (de) 1988-08-24

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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: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8328 Change in the person/name/address of the agent

Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN

8339 Ceased/non-payment of the annual fee