DE69307982D1 - Magnetkopf mit verschleissbeständiger Schicht und dessen Herstellungsverfahren - Google Patents

Magnetkopf mit verschleissbeständiger Schicht und dessen Herstellungsverfahren

Info

Publication number
DE69307982D1
DE69307982D1 DE69307982T DE69307982T DE69307982D1 DE 69307982 D1 DE69307982 D1 DE 69307982D1 DE 69307982 T DE69307982 T DE 69307982T DE 69307982 T DE69307982 T DE 69307982T DE 69307982 D1 DE69307982 D1 DE 69307982D1
Authority
DE
Germany
Prior art keywords
wear
manufacturing process
magnetic head
resistant layer
resistant
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
DE69307982T
Other languages
English (en)
Other versions
DE69307982T2 (de
Inventor
Franciscus Wilhelmus Adr Dirne
Victor Zieren
Broese Groenou Arnold Van
Oorschot Leo Franciscus Ma Van
Peter Lasinski
Jongh Mathijs De
Freddy Roozeboom
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
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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE69307982D1 publication Critical patent/DE69307982D1/de
Publication of DE69307982T2 publication Critical patent/DE69307982T2/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/102—Manufacture of housing
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • 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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69307982T 1992-08-03 1993-07-28 Magnetkopf mit verschleissbeständiger Schicht und dessen Herstellungsverfahren Expired - Fee Related DE69307982T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92202392 1992-08-03
EP93200157 1993-01-22

Publications (2)

Publication Number Publication Date
DE69307982D1 true DE69307982D1 (de) 1997-03-20
DE69307982T2 DE69307982T2 (de) 1997-07-24

Family

ID=26131607

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69307982T Expired - Fee Related DE69307982T2 (de) 1992-08-03 1993-07-28 Magnetkopf mit verschleissbeständiger Schicht und dessen Herstellungsverfahren

Country Status (6)

Country Link
US (2) US6424489B1 (de)
EP (1) EP0590701B1 (de)
JP (1) JPH06162443A (de)
DE (1) DE69307982T2 (de)
HK (1) HK1006201A1 (de)
SG (1) SG55136A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030074784A1 (en) * 1999-10-29 2003-04-24 Yoshiyuki Konishi Method of forming protective film on magnetic head
US6587305B2 (en) 2001-03-28 2003-07-01 Quantum Corporation Tape head with transducer supports having raised, wear-resistant surfaces at edges of softer core
US6937435B2 (en) 2003-05-16 2005-08-30 Quantum Corporation Tape head with thin support surface and method of manufacture
US7154691B2 (en) 2003-12-18 2006-12-26 Quantum Corporation Multi-format thinfilm head and associated methods
US7256963B2 (en) 2004-09-16 2007-08-14 Quantum Corporation Magnetic head with adaptive data island and mini-outrigger and methods of manufacture
US7271983B2 (en) 2004-09-16 2007-09-18 Quantum Corporation Magnetic head with mini-outriggers and method of manufacture
US7760465B2 (en) * 2005-10-25 2010-07-20 International Business Machines Corporation Magnetic head having selectively defined reader gap thicknesses
US8934197B2 (en) * 2012-07-16 2015-01-13 Quantum Corporation Magnetic media access head with metal coating
US9418683B2 (en) 2014-10-29 2016-08-16 International Business Machines Corporation Mass production of multichannel current perpendicular to plane head modules via preferred milling
US9449622B2 (en) 2014-10-29 2016-09-20 International Business Machines Corporation Differing magnetic read sensors on a magnetic head
US9299369B1 (en) * 2014-10-29 2016-03-29 International Business Machines Corporation Multichannel data storage apparatus having abrasion resistant barrier
US10014010B2 (en) * 2016-08-30 2018-07-03 International Business Machines Corporation Apparatus having self-healing current-perpendicular-to-plane read head

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665436A (en) * 1970-06-17 1972-05-23 Potter Instrument Co Inc Long-wearing magnetic head
US4052748A (en) 1974-04-01 1977-10-04 U.S. Philips Corporation Magnetoresistive magnetic head
SU622151A1 (ru) * 1977-03-18 1978-08-02 Предприятие П/Я А-3103 Защитный слой рабочей поверхности магнитной головки
JPS5570926A (en) * 1978-11-22 1980-05-28 Hitachi Ltd Magnetic head of wear proof
JPS5573917A (en) 1978-11-29 1980-06-04 Sankyo Seiki Mfg Co Ltd Magnetic head core with excellent resistance to wear
JPS5619517A (en) * 1979-07-25 1981-02-24 Matsushita Electric Ind Co Ltd Magnetic head
DE3010348A1 (de) * 1980-03-18 1981-09-24 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Gehaeuse in becherform zur aufnahme eines oder mehrerer magnetkopfsysteme
DE3307776A1 (de) 1983-03-04 1984-09-06 Siemens AG, 1000 Berlin und 8000 München Aufzeichnungsanordnung fuer einen magnetschichtspeicher
JPS61144728A (ja) * 1984-12-19 1986-07-02 Hitachi Ltd 磁気デイスク用保護膜
JPS61211817A (ja) * 1985-03-18 1986-09-19 Hitachi Ltd 磁気デイスク
JPS6337811A (ja) 1986-07-30 1988-02-18 Toshiba Corp ヨ−クタイプ磁気抵抗効果型薄膜磁気ヘツド
JPS6358613A (ja) * 1986-08-29 1988-03-14 Fuji Photo Film Co Ltd 薄膜磁気ヘツド
JPH01282711A (ja) * 1988-05-07 1989-11-14 Tdk Corp 磁気ヘッド
FR2634051B1 (fr) 1988-07-05 1995-02-24 Thomson Csf Dispositif en materiau magnetique a couche anti-usure et applications a une tete d'enregistrement-lecture et a un disque d'enregistrement
JPH02179917A (ja) * 1988-12-29 1990-07-12 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPH0366006A (ja) * 1989-08-03 1991-03-20 Canon Electron Inc 磁気ヘッド
JPH06159820A (ja) * 1991-07-12 1994-06-07 Mitsubishi Denki Bill Techno Service Kk エレベータ用空気冷却装置
NL9101270A (nl) * 1991-07-19 1993-02-16 Philips Nv Magneetkopeenheid, magneetkop ten gebruike in de magneetkopeenheid en magneetkopstructuur ten gebruike in de magneetkop.

Also Published As

Publication number Publication date
JPH06162443A (ja) 1994-06-10
US20020048114A1 (en) 2002-04-25
DE69307982T2 (de) 1997-07-24
EP0590701B1 (de) 1997-02-05
US6424489B1 (en) 2002-07-23
HK1006201A1 (en) 1999-02-12
SG55136A1 (en) 1999-05-25
EP0590701A3 (de) 1994-08-31
EP0590701A2 (de) 1994-04-06

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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: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee