JP4191913B2 - 薄膜磁気ヘッド - Google Patents

薄膜磁気ヘッド Download PDF

Info

Publication number
JP4191913B2
JP4191913B2 JP2001224601A JP2001224601A JP4191913B2 JP 4191913 B2 JP4191913 B2 JP 4191913B2 JP 2001224601 A JP2001224601 A JP 2001224601A JP 2001224601 A JP2001224601 A JP 2001224601A JP 4191913 B2 JP4191913 B2 JP 4191913B2
Authority
JP
Japan
Prior art keywords
magnetic pole
layer
magnetic
tip
magnetic field
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
JP2001224601A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003036506A5 (enExample
JP2003036506A (ja
Inventor
茂一 大友
盛明 府山
伸雄 芳田
宏 福井
Original Assignee
株式会社日立グローバルストレージテクノロジーズ
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 株式会社日立グローバルストレージテクノロジーズ filed Critical 株式会社日立グローバルストレージテクノロジーズ
Priority to JP2001224601A priority Critical patent/JP4191913B2/ja
Priority to US09/943,507 priority patent/US7142391B2/en
Publication of JP2003036506A publication Critical patent/JP2003036506A/ja
Priority to US11/002,498 priority patent/US7142392B2/en
Publication of JP2003036506A5 publication Critical patent/JP2003036506A5/ja
Application granted granted Critical
Publication of JP4191913B2 publication Critical patent/JP4191913B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • 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
    • G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
    • 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
    • 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
    • G11B2005/3996—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 large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • 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
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Heads (AREA)
JP2001224601A 2001-07-25 2001-07-25 薄膜磁気ヘッド Expired - Fee Related JP4191913B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001224601A JP4191913B2 (ja) 2001-07-25 2001-07-25 薄膜磁気ヘッド
US09/943,507 US7142391B2 (en) 2001-07-25 2001-08-31 Thin film head, producing method thereof and magnetic disk apparatus
US11/002,498 US7142392B2 (en) 2001-07-25 2004-12-03 Thin film head, producing method thereof and magnetic disk apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001224601A JP4191913B2 (ja) 2001-07-25 2001-07-25 薄膜磁気ヘッド

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2005184679A Division JP4246719B2 (ja) 2005-06-24 2005-06-24 薄膜磁気ヘッド

Publications (3)

Publication Number Publication Date
JP2003036506A JP2003036506A (ja) 2003-02-07
JP2003036506A5 JP2003036506A5 (enExample) 2005-10-20
JP4191913B2 true JP4191913B2 (ja) 2008-12-03

Family

ID=19057732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001224601A Expired - Fee Related JP4191913B2 (ja) 2001-07-25 2001-07-25 薄膜磁気ヘッド

Country Status (2)

Country Link
US (2) US7142391B2 (enExample)
JP (1) JP4191913B2 (enExample)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6651313B1 (en) * 2000-10-06 2003-11-25 International Business Machines Corporation Method for manufacturing a magnetic head
US6826014B2 (en) * 2001-09-26 2004-11-30 International Business Machines Corporation Write head having first pole piece with frequency dependent variable effective throat height
US7099121B2 (en) * 2002-06-06 2006-08-29 Seagate Technology Llc Perpendicular magnetic recording head having a reduced field under the return pole and minimal eddy current losses
US7688545B1 (en) * 2002-09-11 2010-03-30 Seagate Technology Llc Recording head writer with high magnetic moment material at the writer gap and associated process
JP2004185742A (ja) * 2002-12-04 2004-07-02 Tdk Corp 薄膜磁気ヘッド
JP4079427B2 (ja) * 2003-05-14 2008-04-23 Ｔｄｋ株式会社 薄膜磁気ヘッドおよびその製造方法、ヘッドジンバルアセンブリならびにハードディスク装置
JP4051327B2 (ja) * 2003-09-19 2008-02-20 新科實業有限公司 垂直磁気記録ヘッドおよびその製造方法、ならびに磁気記録装置
US20050099727A1 (en) * 2003-11-12 2005-05-12 Headway Technologies, Inc. Write-head having recessed magnetic material in gap region
JP2005166176A (ja) * 2003-12-03 2005-06-23 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク用磁気ヘッド
US7327532B2 (en) * 2004-02-27 2008-02-05 Headway Technologies, Inc. Bottom pole structure with back-side steps
US8331058B2 (en) * 2004-05-28 2012-12-11 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for providing a write head with an improved pole tip to improve overwrite and/or adjacent track interference
JP2005346786A (ja) 2004-06-01 2005-12-15 Tdk Corp 薄膜磁気ヘッド、該薄膜磁気ヘッドを備えたヘッドジンバルアセンブリ、該ヘッドジンバルアセンブリを備えたヘッドアームアセンブリ、該ヘッドジンバルアセンブリを備えた磁気ディスク装置及び該薄膜磁気ヘッドの製造方法
US7440229B2 (en) * 2004-06-18 2008-10-21 Headway Technologies, Inc. Thin-film magnetic head having a write shield layer
US7580222B2 (en) * 2004-06-18 2009-08-25 Headway Technologies, Inc. Thin-film magnetic head, a head gimbal assembly and hard disk drive
US7238292B1 (en) 2004-07-30 2007-07-03 Western Digital (Fremont), Inc. Method of fabricating a write element with a reduced yoke length
US7522379B1 (en) * 2004-07-30 2009-04-21 Western Digital (Fremont), Llc Write element with recessed pole and heat sink layer for ultra-high density writing
US7379269B1 (en) 2004-07-30 2008-05-27 Western Digital (Fremont), Llc Write element with reduced yoke length for ultra-high density writing
JP2006120274A (ja) * 2004-10-25 2006-05-11 Hitachi Global Storage Technologies Netherlands Bv 薄膜磁気ヘッド
US7764469B2 (en) * 2004-10-29 2010-07-27 Hitachi Global Storage Technologies Netherlands B.V. Notched shield and pole structure with slanted wing for perpendicular recording
US7649711B2 (en) * 2004-10-29 2010-01-19 Hitachi Global Storage Technologies Netherlands B.V. Double notched shield and pole structure for stray field reduction in a magnetic head
US7616403B2 (en) * 2004-10-29 2009-11-10 Hitachi Global Storage Technologies Netherlands B.V. Winged design for reducing corner stray magnetic fields
JP2006236454A (ja) * 2005-02-24 2006-09-07 Fujitsu Ltd 磁気ヘッドおよび磁気ヘッドの製造方法
JP2007026578A (ja) * 2005-07-20 2007-02-01 Hitachi Global Storage Technologies Netherlands Bv 薄膜磁気ヘッドおよび磁気ディスク装置
US7551397B2 (en) * 2005-09-02 2009-06-23 Hitachi Global Storage Technologies Netherlands B.V. Magnetic write head having a first magnetic pole with a self aligned stepped notch
US7612964B2 (en) * 2005-09-15 2009-11-03 Hitachi Global Storage Technologies Netherlands B.V. Magnetic write head having a self aligned, steep shoulder pole structure and method of manufacture thereof
JP4504960B2 (ja) * 2006-08-28 2010-07-14 株式会社日立製作所 熱アシスト磁気記録装置
US8238057B2 (en) * 2009-02-19 2012-08-07 Tdk Corporation Magnetic head, head assembly and magnetic recording/reproducing apparatus and method for manufacturing magnetic head
JP5808273B2 (ja) * 2012-03-01 2015-11-10 株式会社日立製作所 磁気ヘッド、ヘッド駆動制御装置、磁気記憶装置、その制御方法
US9704511B2 (en) * 2014-11-12 2017-07-11 Tdk Corporation Perpendicular magnetic recording head with improved density recording
US9530443B1 (en) * 2015-06-25 2016-12-27 Western Digital (Fremont), Llc Method for fabricating a magnetic recording device having a high aspect ratio structure

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6032353A (en) * 1997-05-15 2000-03-07 Read-Rite Corporation Magnetic head with low stack height and self-aligned pole tips
US6201670B1 (en) * 1997-06-16 2001-03-13 International Business Machines Corporation Merged magnetic head that includes a write head with single-sided notched first pole piece
JP3411194B2 (ja) * 1997-07-29 2003-05-26 アルプス電気株式会社 軟磁性膜及びこの軟磁性膜を用いたｍｒ／インダクティブ複合型薄膜磁気ヘッド
JPH11232610A (ja) * 1997-12-12 1999-08-27 Tdk Corp 薄膜磁気ヘッド
US6317289B1 (en) * 1998-04-17 2001-11-13 Tdk Corporation Combination-type thin film magnetic head with improved writing properties
JP2000020916A (ja) * 1998-07-01 2000-01-21 Hitachi Ltd 誘導型薄膜磁気ヘッド
JP3799168B2 (ja) * 1998-08-20 2006-07-19 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
JP2000149219A (ja) * 1998-11-12 2000-05-30 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
JP3909630B2 (ja) * 1999-03-15 2007-04-25 Ｔｄｋ株式会社 薄膜磁気ヘッド及びその製造方法
JP2000276707A (ja) 1999-03-25 2000-10-06 Hitachi Metals Ltd 記録再生分離型磁気ヘッド
US6524491B1 (en) * 1999-04-26 2003-02-25 Headway Technologies, Inc. Double plate-up process for fabrication of composite magnetoresistive shared poles
JP3859398B2 (ja) * 1999-07-08 2006-12-20 Ｔｄｋ株式会社 薄膜磁気ヘッドおよびその製造方法
JP2001028107A (ja) * 1999-07-14 2001-01-30 Tdk Corp 薄膜磁気ヘッド、磁気ヘッド装置、磁気ディスク装置及び薄膜磁気ヘッドの製造方法
JP2001034911A (ja) * 1999-07-16 2001-02-09 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
JP2001067617A (ja) * 1999-08-24 2001-03-16 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
JP2001167408A (ja) * 1999-12-09 2001-06-22 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
US6687096B2 (en) * 2000-06-21 2004-02-03 Tdk Corporation Thin-film magnetic head and method of manufacturing same
JP2002015405A (ja) * 2000-06-28 2002-01-18 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
JP2002015404A (ja) * 2000-06-29 2002-01-18 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
US6563669B1 (en) * 2000-09-13 2003-05-13 Storage Technology Corporation Inverted write head with high-precision track width definition
JP3362034B2 (ja) * 2001-01-16 2003-01-07 ティーディーケイ株式会社 薄膜磁気ヘッドおよびその製造方法
US6870712B2 (en) * 2001-06-05 2005-03-22 Western Digital (Fremont), Inc. Inductive writer with flat top pole and pedestal defined zero throat
US6572989B2 (en) * 2001-06-06 2003-06-03 International Business Machines Corporation Thin film magnetic recording disk with a chromium-nickel pre-seed layer
US6826020B2 (en) * 2001-08-20 2004-11-30 Storage Technology Corporation Merged-pole magnetic head having inverted write elements

Also Published As

Publication number Publication date
US7142392B2 (en) 2006-11-28
US7142391B2 (en) 2006-11-28
JP2003036506A (ja) 2003-02-07
US20050078412A1 (en) 2005-04-14
US20030021064A1 (en) 2003-01-30

Similar Documents

Publication Publication Date Title
JP4191913B2 (ja) 薄膜磁気ヘッド
US7457080B2 (en) Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus
US8203803B2 (en) Magnetic recording head for perpendicular recording with wrap around shield, the fabrication process and magnetic disk storage apparatus mounting the magnetic head
US7070698B2 (en) Methods of fabricating magnetic write heads with side and trailing shield structures
US7019944B2 (en) Thin film magnetic head capable of inhibiting occurrence of track erasing
US6791795B2 (en) Thin film magnetic head having inductive write portion features that provide high recording field strength
US7580222B2 (en) Thin-film magnetic head, a head gimbal assembly and hard disk drive
JP2007294059A (ja) 垂直記録磁気ヘッド
US20070236834A1 (en) Perpendicular magnetic recording head having flared part
US20080254208A1 (en) Thin film magnetic head structure adapted to manufacture a thin film magnetic head
US5774308A (en) Thin film inductive head and magnetic writing/reading drive including the same
US20060262453A1 (en) Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head
JP4855108B2 (ja) 磁気再生記録ヘッドおよびその製造方法
US7440229B2 (en) Thin-film magnetic head having a write shield layer
JP2001266309A (ja) 薄膜磁気ヘッドおよびその製造方法
US6667849B2 (en) Thin film magnetic head and the manufacturing method
US7518826B2 (en) Perpendicular magnetic recording head and magnetic recording apparatus
JP2007220209A (ja) 磁気ヘッド、磁気記録再生装置及び磁気ヘッドの製造方法
JP2007220208A (ja) 磁気ヘッド、磁気記録再生装置及び磁気ヘッドの製造方法
US7545603B2 (en) Magnetic head and manufacturing method thereof
US7969683B2 (en) Write first design for a perpendicular thin film head
US7843667B2 (en) Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device
JP4246719B2 (ja) 薄膜磁気ヘッド
US7626785B2 (en) Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus
JP2005166176A (ja) 磁気ディスク用磁気ヘッド

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20050105

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050624

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050624

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20050624

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070920

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20071002

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071130

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080520

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080711

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080826

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080919

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110926

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120926

Year of fee payment: 4

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120926

Year of fee payment: 4

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120926

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130926

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees