JP4084008B2 - 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置 - Google Patents

薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置 Download PDF

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Publication number
JP4084008B2
JP4084008B2 JP2001235835A JP2001235835A JP4084008B2 JP 4084008 B2 JP4084008 B2 JP 4084008B2 JP 2001235835 A JP2001235835 A JP 2001235835A JP 2001235835 A JP2001235835 A JP 2001235835A JP 4084008 B2 JP4084008 B2 JP 4084008B2
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Prior art keywords
magnetic
head
magnetic field
facing surface
pole
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Expired - Fee Related
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JP2001235835A
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Japanese (ja)
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JP2003045008A (ja
JP2003045008A5 (enExample
Inventor
智弘 岡田
良昭 川戸
香 鈴木
宏 福井
功 布川
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株式会社日立グローバルストレージテクノロジーズ
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Priority to JP2001235835A priority Critical patent/JP4084008B2/ja
Priority to US10/068,986 priority patent/US6785097B2/en
Publication of JP2003045008A publication Critical patent/JP2003045008A/ja
Priority to US10/924,814 priority patent/US7086140B2/en
Publication of JP2003045008A5 publication Critical patent/JP2003045008A5/ja
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    • 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • 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
    • Y10T29/49034—Treating to affect magnetic properties
    • 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
    • Y10T29/49037—Using reference point/surface to facilitate measuring
    • 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
    • Y10T29/49043—Depositing magnetic layer or coating
    • 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
    • Y10T29/49043—Depositing magnetic layer or coating
    • Y10T29/49044—Plural magnetic deposition layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP2001235835A 2001-08-03 2001-08-03 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置 Expired - Fee Related JP4084008B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001235835A JP4084008B2 (ja) 2001-08-03 2001-08-03 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置
US10/068,986 US6785097B2 (en) 2001-08-03 2002-02-11 Thin film magnetic recording head, method of fabricating the thin film magnetic recording head and magnetic disk drive
US10/924,814 US7086140B2 (en) 2001-08-03 2004-08-25 Method of fabricating a thin film magnetic recording head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001235835A JP4084008B2 (ja) 2001-08-03 2001-08-03 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2004227618A Division JP2004348962A (ja) 2004-08-04 2004-08-04 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置

Publications (3)

Publication Number Publication Date
JP2003045008A JP2003045008A (ja) 2003-02-14
JP2003045008A5 JP2003045008A5 (enExample) 2005-05-26
JP4084008B2 true JP4084008B2 (ja) 2008-04-30

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JP2001235835A Expired - Fee Related JP4084008B2 (ja) 2001-08-03 2001-08-03 薄膜磁気ヘッド及びその製造方法、並びに磁気ディスク装置

Country Status (2)

Country Link
US (2) US6785097B2 (enExample)
JP (1) JP4084008B2 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4160784B2 (ja) * 2002-05-31 2008-10-08 株式会社日立グローバルストレージテクノロジーズ 垂直磁気ヘッドおよび垂直磁気記録再生装置
JP2004022004A (ja) * 2002-06-12 2004-01-22 Tdk Corp 薄膜磁気ヘッド
JP3774446B2 (ja) * 2003-04-28 2006-05-17 株式会社東芝 垂直磁気記録ヘッドおよび磁気ディスク装置
US7554765B2 (en) * 2003-06-11 2009-06-30 Seagate Technology Llc Magnetic head for perpendicular recording with suppressed side writing and erasing
JP2005018851A (ja) * 2003-06-24 2005-01-20 Tdk Corp 薄膜磁気ヘッドおよび磁気記録装置
JP2005243124A (ja) 2004-02-25 2005-09-08 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びそれを搭載した磁気記録再生装置
JP2006018876A (ja) * 2004-06-30 2006-01-19 Toshiba Corp 垂直磁気記録装置
JP2006018927A (ja) * 2004-07-01 2006-01-19 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びそれを搭載した磁気記録再生装置
JP4390677B2 (ja) 2004-10-15 2009-12-24 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 磁気ヘッド及びそれを搭載した磁気記録再生装置
JP2006127627A (ja) 2004-10-28 2006-05-18 Hitachi Global Storage Technologies Netherlands Bv 磁気記録再生装置
JP2006209927A (ja) * 2005-01-31 2006-08-10 Toshiba Corp 垂直磁気ヘッドおよび垂直磁気ディスク装置
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
US20060245113A1 (en) * 2005-04-28 2006-11-02 Headway Technologies, Inc. Method to reduce sensitivity of a perpendicular recording head to external fields
US7561379B2 (en) * 2005-10-28 2009-07-14 Seagate Technology Llc Laminated return pole for suppressing side track erasure
US8385020B2 (en) 2010-11-24 2013-02-26 Headway Technologies, Inc. Modified shield design to eliminate the far-field WATE problem

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819717A (ja) * 1981-07-30 1983-02-04 Fujitsu Ltd 垂直磁化記録再生用ヘッド
WO1986003616A1 (fr) * 1984-12-03 1986-06-19 Olympus Optical Co., Ltd. Tete magnetic verticale
JPH0395717A (ja) * 1989-09-08 1991-04-22 Fujitsu Ltd 磁気ヘッド
US5073836A (en) * 1989-10-05 1991-12-17 Hewlett-Packard Company Single pole write and a differential magneto-resistive read for perpendicular recording
JPH07225901A (ja) 1994-02-10 1995-08-22 Fujitsu Ltd 垂直磁気ディスク装置
KR100439879B1 (ko) * 1996-04-12 2004-12-03 마츠시타 덴끼 산교 가부시키가이샤 오디오비디오기능을실행할영상타이틀과,그렇지않은영상타이틀을수록하고,그들의차이를순간에분별할수있는광디스크및그재생장치,재생방법
JP4297585B2 (ja) * 2000-02-28 2009-07-15 株式会社日立グローバルストレージテクノロジーズ 磁気記録再生装置
JP2001256608A (ja) * 2000-03-14 2001-09-21 Toshiba Corp 磁気ヘッド及び磁気記憶再生装置
US6798615B1 (en) * 2000-03-24 2004-09-28 Seagate Technology Llc Perpendicular recording head with return poles which reduce flux antenna effect
JP4102013B2 (ja) * 2000-09-22 2008-06-18 株式会社東芝 垂直記録ヘッドおよび垂直磁気記録装置
JP2002208115A (ja) * 2000-11-10 2002-07-26 Tdk Corp 薄膜磁気ヘッドの製造方法

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Publication number Publication date
JP2003045008A (ja) 2003-02-14
US20030026039A1 (en) 2003-02-06
US6785097B2 (en) 2004-08-31
US20050018346A1 (en) 2005-01-27
US7086140B2 (en) 2006-08-08

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