HK54995A - Method of producing head core slider for rigid magnetic disk drive utilizing laser-induced etching. - Google Patents

Method of producing head core slider for rigid magnetic disk drive utilizing laser-induced etching.

Info

Publication number
HK54995A
HK54995A HK54995A HK54995A HK54995A HK 54995 A HK54995 A HK 54995A HK 54995 A HK54995 A HK 54995A HK 54995 A HK54995 A HK 54995A HK 54995 A HK54995 A HK 54995A
Authority
HK
Hong Kong
Prior art keywords
disk drive
magnetic disk
head core
rigid magnetic
utilizing laser
Prior art date
Application number
HK54995A
Other languages
English (en)
Inventor
Hideto Sandaiji
Fuminori Takeya
Nobuhiro Terada
Original Assignee
Ngk Insulators 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 Ngk Insulators Ltd filed Critical Ngk Insulators Ltd
Publication of HK54995A publication Critical patent/HK54995A/xx

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
    • G11B5/147—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
    • G11B5/153—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 with tape-wound cores
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/361—Removing material for deburring or mechanical trimming
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C04B41/5338—Etching
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
    • 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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49041—Fabricating head structure or component thereof including measuring or testing with significant slider/housing shaping or treating
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)
HK54995A 1988-09-24 1995-04-11 Method of producing head core slider for rigid magnetic disk drive utilizing laser-induced etching. HK54995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63239244A JPH0719347B2 (ja) 1988-09-24 1988-09-24 固定磁気ディスク装置用コアスライダの製造法

Publications (1)

Publication Number Publication Date
HK54995A true HK54995A (en) 1995-04-21

Family

ID=17041882

Family Applications (1)

Application Number Title Priority Date Filing Date
HK54995A HK54995A (en) 1988-09-24 1995-04-11 Method of producing head core slider for rigid magnetic disk drive utilizing laser-induced etching.

Country Status (7)

Country Link
US (1) US4948460A (ja)
EP (1) EP0361809B1 (ja)
JP (1) JPH0719347B2 (ja)
KR (1) KR920003482B1 (ja)
DE (1) DE68919972T2 (ja)
HK (1) HK54995A (ja)
SG (1) SG59863G (ja)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731780B2 (ja) * 1989-09-08 1995-04-10 日本碍子株式会社 磁気ヘッド用コアの製造方法
US5156704A (en) * 1990-06-01 1992-10-20 Computer And Communications Technology Corp. Method for fabricating magnetic head air bearing sliders
US5427675A (en) * 1991-10-29 1995-06-27 Teijin Seiki Co., Ltd. Method of manufacturing article having magnetic patterns
US5225033A (en) * 1990-11-19 1993-07-06 Sanyo Electric Co., Ltd. Process for producing magnetic head of the floating type
FR2669712A1 (fr) * 1990-11-22 1992-05-29 Applic Gaz Sa Element d'ecoulement controle d'un fluide, et organes de commande d'un debit incorporant un tel element.
JP2543629B2 (ja) * 1991-02-14 1996-10-16 日本碍子株式会社 磁気ディスク装置用コアスライダ及びその製造方法
JPH04301205A (ja) * 1991-03-28 1992-10-23 Ngk Insulators Ltd 磁気ヘッド用コアチップ及びそれを用いた磁気ヘッド用コアスライダの製造法
US5320881A (en) * 1991-08-27 1994-06-14 Northeastern University Fabrication of ferrite films using laser deposition
US5227204A (en) * 1991-08-27 1993-07-13 Northeastern University Fabrication of ferrite films using laser deposition
JP3110092B2 (ja) * 1991-09-04 2000-11-20 株式会社日立製作所 磁気ヘッド用スライダーの製造方法
JP2543641B2 (ja) * 1991-11-18 1996-10-16 日本碍子株式会社 固定磁気ディスク装置用コアスライダおよびその製造方法
JPH05234014A (ja) * 1992-02-20 1993-09-10 Ngk Insulators Ltd 磁気ヘッド用コアの製造法
US5266769A (en) * 1992-02-25 1993-11-30 International Business Machines Corporation Process for independent control of crown and camber for magnetic head slider
US5254834A (en) * 1992-06-02 1993-10-19 Johnstech International Corporation Method of forming closely-spaced, generally parallel slots through a thin wall and product formed thereby
US5413672A (en) * 1992-07-22 1995-05-09 Ngk Insulators, Ltd. Method of etching sendust and method of pattern-etching sendust and chromium films
JP2933491B2 (ja) * 1993-10-04 1999-08-16 松下電器産業株式会社 磁気ヘッドの製造方法
US5687046A (en) * 1994-05-25 1997-11-11 Maxtor Corporation Vertical recording using a tri-pad head
US5509554A (en) * 1994-11-14 1996-04-23 International Business Machines Corporation Sacrificial structure masking method for disk drive slider assemblies and sliders made thereby
US5874011A (en) * 1996-08-01 1999-02-23 Revise, Inc. Laser-induced etching of multilayer materials
US6378338B1 (en) * 1998-08-31 2002-04-30 Showa Denko K.K. Method for producing magnetic disk substrates
US6445542B1 (en) 2000-03-06 2002-09-03 Read-Rite Corporation Air bearing slider
US6674058B1 (en) 2000-09-20 2004-01-06 Compucyte Corporation Apparatus and method for focusing a laser scanning cytometer
US6721142B1 (en) 2000-12-21 2004-04-13 Western Digital (Fremont) Inc. Non-corrosive GMR slider for proximity recording
US6943980B2 (en) * 2001-02-08 2005-09-13 Seagate Technology Llc Electrostatic track following using patterned media
US6937350B2 (en) * 2001-06-29 2005-08-30 Massachusetts Institute Of Technology Apparatus and methods for optically monitoring thickness
US7273479B2 (en) * 2003-01-15 2007-09-25 Cryodynamics, Llc Methods and systems for cryogenic cooling
US7289334B2 (en) * 2003-08-27 2007-10-30 Epicenter, Inc. Rack architecture and management system
US20060027542A1 (en) * 2004-04-28 2006-02-09 Niraj Mahadev Method to eliminate defects on the periphery of a slider due to conventional machining processes
US7477486B1 (en) 2005-12-07 2009-01-13 Western Digital (Fremont), Llc Air bearing slider with a side pad having a shallow recess depth

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129118A (ja) * 1974-09-05 1976-03-12 Nippon Electric Co Jikihetsudo
JPS51114111A (en) * 1975-03-31 1976-10-07 Nippon Telegr & Teleph Corp <Ntt> Method of manufacturing magnetic heads
JPS5361319A (en) * 1976-11-15 1978-06-01 Nippon Telegr & Teleph Corp <Ntt> Magnetic head
JPS55117726A (en) * 1979-03-05 1980-09-10 Hitachi Ltd Manufacture of magnetic head
JPS5622217A (en) * 1979-08-01 1981-03-02 Hitachi Ltd Manufacture of magnetic head
JPS5719500A (en) * 1980-07-07 1982-02-01 Toto Kogyo Kk Water proofing method and apparatus for tunnel constru construction
JPS57212617A (en) * 1981-06-24 1982-12-27 Hitachi Ltd Manufacture of magnetic head
NL8200532A (nl) * 1982-02-12 1983-09-01 Philips Nv Reactief ionen etsen van een voorwerp van ferriet.
JPS59215022A (ja) * 1983-05-21 1984-12-04 Victor Co Of Japan Ltd 磁気ヘツド製造法
JPS6176689A (ja) * 1984-09-21 1986-04-19 Nec Corp 浮動ヘツドスライダの製造方法
JPS61260408A (ja) * 1985-05-14 1986-11-18 Matsushita Electric Ind Co Ltd 磁気ヘッドのトラック加工方法
JPS6218615A (ja) * 1985-07-17 1987-01-27 Nec Corp 磁気ヘツド
JPS6283483A (ja) * 1985-10-04 1987-04-16 Ngk Insulators Ltd Ｍｎ−Ｚｎフェライトの化学エッチング方法
US4751779A (en) * 1986-04-02 1988-06-21 Ds Scanner Co., Ltd. Method of producing a core for magnetic head
JPS62234214A (ja) * 1986-04-03 1987-10-14 Alps Electric Co Ltd 磁気ヘツドの製造方法
JPS6337819A (ja) * 1986-07-31 1988-02-18 Hitachi Metals Ltd 磁気デイスク装置用浮上型磁気ヘツド
JPH066796B2 (ja) * 1987-07-09 1994-01-26 日本碍子株式会社 フェライト単結晶の加工方法

Also Published As

Publication number Publication date
DE68919972D1 (de) 1995-01-26
JPH0287314A (ja) 1990-03-28
EP0361809B1 (en) 1994-12-14
DE68919972T2 (de) 1995-06-22
JPH0719347B2 (ja) 1995-03-06
KR900005382A (ko) 1990-04-14
US4948460A (en) 1990-08-14
SG59863G (en) 1995-09-18
EP0361809A3 (en) 1992-07-01
KR920003482B1 (ko) 1992-05-01
EP0361809A2 (en) 1990-04-04

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