DE3485393D1 - Magnetkopf. - Google Patents

Magnetkopf.

Info

Publication number
DE3485393D1
DE3485393D1 DE8484100437T DE3485393T DE3485393D1 DE 3485393 D1 DE3485393 D1 DE 3485393D1 DE 8484100437 T DE8484100437 T DE 8484100437T DE 3485393 T DE3485393 T DE 3485393T DE 3485393 D1 DE3485393 D1 DE 3485393D1
Authority
DE
Germany
Prior art keywords
magnetic head
magnetic
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 - Lifetime
Application number
DE8484100437T
Other languages
English (en)
Inventor
Noriyuki Kumasaka
Hideo Fujiwara
Noritoshi Saito
Shigekazu Otomo
Takeo Yamashita
Mitsuhiro Kudo
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
Application granted granted Critical
Publication of DE3485393D1 publication Critical patent/DE3485393D1/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
    • 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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/923—Physical dimension
    • Y10S428/924—Composite
    • Y10S428/926—Thickness of individual layer specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1107—Magnetoresistive
    • Y10T428/1121—Multilayer
    • Y10T428/1129—Super lattice [e.g., giant magneto resistance [GMR] or colossal magneto resistance [CMR], etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12611—Oxide-containing component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12632—Four or more distinct components with alternate recurrence of each type component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12937—Co- or Ni-base component next to Fe-base component

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Heads (AREA)
DE8484100437T 1983-01-17 1984-01-17 Magnetkopf. Expired - Lifetime DE3485393D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58004270A JPH061729B2 (ja) 1983-01-17 1983-01-17 磁性体膜およびそれを用いた磁気ヘッド

Publications (1)

Publication Number Publication Date
DE3485393D1 true DE3485393D1 (de) 1992-02-13

Family

ID=11579844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484100437T Expired - Lifetime DE3485393D1 (de) 1983-01-17 1984-01-17 Magnetkopf.

Country Status (4)

Country Link
US (1) US4610935A (de)
EP (1) EP0114076B1 (de)
JP (1) JPH061729B2 (de)
DE (1) DE3485393D1 (de)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055601A (ja) * 1983-09-07 1985-03-30 Seiko Epson Corp 軟磁性薄膜
JPS6159616A (ja) * 1984-08-29 1986-03-27 Sharp Corp 磁気ヘツドコアの製造方法
JPH0622170B2 (ja) * 1983-12-16 1994-03-23 株式会社日立製作所 磁気ヘッド
NL8403595A (nl) * 1984-11-27 1986-06-16 Philips Nv Magneetkop met kerndelen van amorf ferromagnetisch metaal.
JPH0770020B2 (ja) * 1985-06-14 1995-07-31 株式会社日立製作所 磁気ヘツド
JPS6285413A (ja) * 1985-10-11 1987-04-18 Hitachi Ltd 強磁性多層膜及びその製造法
US4897318A (en) * 1986-01-21 1990-01-30 Matsushita Electric Industrial Co., Ltd. Laminated magnetic materials
US4891278A (en) * 1986-02-21 1990-01-02 Hitachi, Ltd. Ferrromagnetic thin film and magnetic head using it
US4749628A (en) * 1986-04-29 1988-06-07 International Business Machines Corporation Multilayered vertical magnetic recording medium
JP2522246B2 (ja) * 1986-05-06 1996-08-07 ブラザー工業株式会社 薄膜磁気記録媒体の製造方法
JPS6365604A (ja) * 1986-09-05 1988-03-24 Hitachi Ltd 鉄系磁性体膜
JPH07111925B2 (ja) * 1986-07-07 1995-11-29 株式会社日立製作所 積層磁性体膜
JP2533860B2 (ja) * 1986-09-24 1996-09-11 株式会社日立製作所 磁性超格子膜およびそれを用いた磁気ヘツド
US4847161A (en) * 1986-12-19 1989-07-11 Siemens Aktiengesellschaft Magnetically anisotropic recording medium
US5176965A (en) * 1987-10-05 1993-01-05 Digital Equipment Corporation Magnetic medium for longitudinal recording
US4825325A (en) * 1987-10-30 1989-04-25 International Business Machines Corporation Magnetoresistive read transducer assembly
US5068147A (en) * 1988-04-28 1991-11-26 Matsushita Electric Industrial Co., Ltd. Soft magnetic thin film comprising alternate layers of iron carbide with either iron, iron nitride or iron carbon-nitride
US5089334A (en) * 1988-08-03 1992-02-18 Digital Equipment Corporation Flux spreading thin film magnetic devices
US5085935A (en) * 1988-08-03 1992-02-04 Digital Equipment Corporation Flux spreading thin film magnetic devices
NL8802873A (nl) * 1988-11-22 1990-06-18 Philips Nv Zachtmagnetische multilaagfilm en magneetkop voorzien van een dergelijke zachtmagnetische multilaagfilm.
FR2640070A1 (fr) * 1988-12-06 1990-06-08 Thomson Csf Tete magnetique planaire d'enregistrement ´ lecture et procede de realisation
US5051288A (en) * 1989-03-16 1991-09-24 International Business Machines Corporation Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer
US5311386A (en) * 1989-06-02 1994-05-10 Digital Equipment Corporation Transducer with improved inductive coupling
US5195005A (en) * 1989-06-02 1993-03-16 Digital Equipment Corporation Tranducer with improved inductive coupling
US5428893A (en) * 1989-06-02 1995-07-04 Quantum Corporation Method of making a transducer with improved inductive coupling
US5184267A (en) * 1989-06-02 1993-02-02 Digital Equipment Corporation Transducer with improved inductive coupling
JPH04129009A (ja) * 1989-10-20 1992-04-30 Seagate Technol Internatl 薄膜磁気読出し・書込みヘッド
US5576099A (en) * 1990-02-09 1996-11-19 International Business Machines Corporation Inductive head lamination with layer of magnetic quenching material
US5157570A (en) * 1990-06-29 1992-10-20 Digital Equipment Corporation Magnetic pole configuration for high density thin film recording head
US5132859A (en) * 1990-08-23 1992-07-21 International Business Machines Corporation Thin film structures for magnetic recording heads
US5264981A (en) * 1991-08-14 1993-11-23 International Business Machines Corporation Multilayered ferromagnetic film and magnetic head employing the same
JP3539732B2 (ja) * 1993-11-23 2004-07-07 シーゲイト テクノロジー エルエルシー 薄いニッケル下層を備えた薄膜磁気ヘッド
US5666250A (en) * 1993-11-23 1997-09-09 Seagate Technology, Inc. Thin film magnetic heads with thin nickel underlayers
WO1995014991A1 (en) * 1993-11-23 1995-06-01 Seagate Technology, Inc. Thin film magnetic heads with thin nickel underlayers
US5738945A (en) * 1993-12-16 1998-04-14 Hmt Technology Corporation Multilayer magnetic medium with soft magnetic interlayer
US5660930A (en) * 1994-04-04 1997-08-26 The Board Of Trustees Of The Leland Stanford Junior University Multilayered thin films for perpendicular magnetic recording
US6259583B1 (en) 1998-09-16 2001-07-10 International Business Machines, Corporation Laminated yoke head with a domain control element
EP1051635A1 (de) * 1998-10-30 2000-11-15 Koninklijke Philips Electronics N.V. Magnetoresistiver magnetfeldsensor
US6477765B1 (en) 1999-11-04 2002-11-12 Storage Technology Corporation Method of fabricating a magnetic write transducer
JP2004207651A (ja) * 2002-12-26 2004-07-22 Tdk Corp 高周波用磁性薄膜、複合磁性薄膜およびそれを用いた磁気素子
JP2004235355A (ja) * 2003-01-29 2004-08-19 Tdk Corp 軟磁性部材およびそれを用いた磁気素子
US7289297B1 (en) 2004-06-07 2007-10-30 Storage Technology Corporation Multilayered ferromagnetic laminate having alternating cobalt alloy and iron-nitrogen alloy films for use with magnetic heads
US7369360B2 (en) * 2004-11-05 2008-05-06 Seagate Technology Llc Perpendicular recording head having controlled permeability and saturation moment
US20070047140A1 (en) * 2005-08-29 2007-03-01 Tabakovic Ibro M Electroplated multiple layer soft magnetic materials with high magnetic moment
US8329320B2 (en) * 2008-11-13 2012-12-11 Headway Technologies, Inc. Laminated high moment film for head applications
US8958176B2 (en) 2010-12-22 2015-02-17 HGST Netherlands B.V Write head pole laminate structure
US9406319B1 (en) 2015-06-27 2016-08-02 International Business Machines Corporation Electrically non-conductive magnetic shield laminate structure for contact recording sensor
US9384764B1 (en) 2015-06-27 2016-07-05 International Business Machines Corporation Electrically conductive magnetic shield laminate structure for contact recording sensor
US9997180B1 (en) 2017-03-22 2018-06-12 International Business Machines Corporation Hybrid dielectric gap liner and magnetic shield liner
US10803889B2 (en) 2019-02-21 2020-10-13 International Business Machines Corporation Apparatus with data reader sensors more recessed than servo reader sensor
US11074930B1 (en) 2020-05-11 2021-07-27 International Business Machines Corporation Read transducer structure having an embedded wear layer between thin and thick shield portions
US11114117B1 (en) 2020-05-20 2021-09-07 International Business Machines Corporation Process for manufacturing magnetic head having a servo read transducer structure with dielectric gap liner and a data read transducer structure with an embedded wear layer between thin and thick shield portions

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
US3673353A (en) * 1970-07-16 1972-06-27 Gen Electric Magnetic transducer having a composite magnetic core structure
US3829372A (en) * 1972-05-25 1974-08-13 Ibm Multilayer magnetic structure and methods of making same
JPS5219680B2 (de) * 1972-10-23 1977-05-30
JPS5325410A (en) * 1976-08-20 1978-03-09 Sony Corp Magnetic head
US4103315A (en) * 1977-06-24 1978-07-25 International Business Machines Corporation Antiferromagnetic-ferromagnetic exchange bias films
US4156882A (en) * 1977-12-15 1979-05-29 Texas Instruments Incorporated Magnetic transducer
JPS5530841A (en) * 1978-08-28 1980-03-04 Toshiba Corp Clad magnetic material
JPS5658125A (en) * 1979-10-16 1981-05-21 Noboru Tsuya Magnetic head core
JPS5764319A (en) * 1980-10-02 1982-04-19 Toshiba Corp Magnetic head and its manufacture
JPS57100619A (en) * 1980-12-12 1982-06-22 Nec Corp Magnetic head of magnetic tape device
JPS57105838A (en) * 1980-12-24 1982-07-01 Ricoh Co Ltd Photo-thermal magnetic recording medium
JPS57117123A (en) * 1981-01-13 1982-07-21 Toshiba Corp Magnetic recoding body
US4364020A (en) * 1981-02-06 1982-12-14 Westinghouse Electric Corp. Amorphous metal core laminations
JPS58128018A (ja) * 1982-01-22 1983-07-30 Canon Electronics Inc 磁気ヘツド
JPS599905A (ja) * 1982-07-09 1984-01-19 Hitachi Ltd 磁性体膜およびそれを用いた磁気ヘッド
JPS5933629A (ja) * 1982-08-17 1984-02-23 Matsushita Electric Ind Co Ltd 垂直磁気記録媒体の製造方法
JPH0622170B2 (ja) * 1983-12-16 1994-03-23 株式会社日立製作所 磁気ヘッド

Also Published As

Publication number Publication date
EP0114076A2 (de) 1984-07-25
EP0114076A3 (en) 1986-07-23
EP0114076B1 (de) 1992-01-02
JPH061729B2 (ja) 1994-01-05
US4610935A (en) 1986-09-09
JPS59130408A (ja) 1984-07-27

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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