DE69221525D1 - Verfahren zur Herstellung eines Dünnfilmmagnetkopfes - Google Patents

Verfahren zur Herstellung eines Dünnfilmmagnetkopfes

Info

Publication number
DE69221525D1
DE69221525D1 DE69221525T DE69221525T DE69221525D1 DE 69221525 D1 DE69221525 D1 DE 69221525D1 DE 69221525 T DE69221525 T DE 69221525T DE 69221525 T DE69221525 T DE 69221525T DE 69221525 D1 DE69221525 D1 DE 69221525D1
Authority
DE
Germany
Prior art keywords
manufacturing
thin film
magnetic head
film 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 - Fee Related
Application number
DE69221525T
Other languages
English (en)
Other versions
DE69221525T2 (de
Inventor
James Richard Peterson
Proost Johannes Franciscus De
Gerardus Henricus Johan Somers
Franciscus Antonius Pronk
Victor Zieren
Helmut Johannes Gassen
Johannes Henricus Cor Franssen
Doorn Rudolf Alexander Van
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.)
Onstream Inc Longmont Col Us
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
Publication of DE69221525D1 publication Critical patent/DE69221525D1/de
Application granted granted Critical
Publication of DE69221525T2 publication Critical patent/DE69221525T2/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • 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
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
    • 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
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
    • G11B5/3166—Testing or indicating in relation thereto, e.g. before the fabrication is completed
    • 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
    • Y10S428/90—Magnetic feature
    • 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
    • Y10T428/1171—Magnetic recording head with defined laminate structural detail

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
DE69221525T 1991-05-08 1992-05-04 Verfahren zur Herstellung eines Dünnfilmmagnetkopfes Expired - Fee Related DE69221525T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/697,140 US5217819A (en) 1991-05-08 1991-05-08 Method of manufacturing a thin-film magnetic head and magnetic head

Publications (2)

Publication Number Publication Date
DE69221525D1 true DE69221525D1 (de) 1997-09-18
DE69221525T2 DE69221525T2 (de) 1998-02-19

Family

ID=24799963

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69221525T Expired - Fee Related DE69221525T2 (de) 1991-05-08 1992-05-04 Verfahren zur Herstellung eines Dünnfilmmagnetkopfes

Country Status (5)

Country Link
US (1) US5217819A (de)
EP (1) EP0512617B1 (de)
JP (1) JP2996562B2 (de)
KR (1) KR100307084B1 (de)
DE (1) DE69221525T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW235361B (de) * 1992-11-13 1994-12-01 Philips Electronics Nv
JPH06203317A (ja) * 1992-11-13 1994-07-22 Hitachi Metals Ltd 浮上型複合磁気ヘッド及びその製造方法
US5916424A (en) * 1996-04-19 1999-06-29 Micrion Corporation Thin film magnetic recording heads and systems and methods for manufacturing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57162115A (en) * 1981-03-30 1982-10-05 Nec Corp Thin-film magnetic head element
US4689877A (en) * 1985-08-29 1987-09-01 International Business Machines Corp. Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers
US4912883A (en) * 1989-02-13 1990-04-03 International Business Machines Corporation Lapping control system for magnetic transducers

Also Published As

Publication number Publication date
JP2996562B2 (ja) 2000-01-11
EP0512617B1 (de) 1997-08-13
KR920022213A (ko) 1992-12-19
KR100307084B1 (ko) 2001-11-30
EP0512617A1 (de) 1992-11-11
DE69221525T2 (de) 1998-02-19
US5217819A (en) 1993-06-08
JPH05128445A (ja) 1993-05-25

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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: ONSTREAM, INC., LONGMONT, COL., US

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

Free format text: HOFFMANN * EITLE, 81925 MUENCHEN

8339 Ceased/non-payment of the annual fee