JP5189113B2 - 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置 - Google Patents

熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置 Download PDF

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Publication number
JP5189113B2
JP5189113B2 JP2010006205A JP2010006205A JP5189113B2 JP 5189113 B2 JP5189113 B2 JP 5189113B2 JP 2010006205 A JP2010006205 A JP 2010006205A JP 2010006205 A JP2010006205 A JP 2010006205A JP 5189113 B2 JP5189113 B2 JP 5189113B2
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JP
Japan
Prior art keywords
light
magnetic recording
waveguide
width
recording 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
JP2010006205A
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English (en)
Japanese (ja)
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JP2011146097A (ja
JP2011146097A5 (https=
Inventor
拓也 松本
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.)
Hitachi Ltd
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Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2010006205A priority Critical patent/JP5189113B2/ja
Priority to US12/984,635 priority patent/US8705327B2/en
Publication of JP2011146097A publication Critical patent/JP2011146097A/ja
Publication of JP2011146097A5 publication Critical patent/JP2011146097A5/ja
Application granted granted Critical
Publication of JP5189113B2 publication Critical patent/JP5189113B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G11B5/3109—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
    • G11B5/1278—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
    • 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
    • G11B5/48—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
    • G11B5/6088—Optical waveguide in or on flying head
    • 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
    • G11B2005/0005—Arrangements, methods or circuits
    • 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
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Optical Head (AREA)
JP2010006205A 2010-01-14 2010-01-14 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置 Expired - Fee Related JP5189113B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2010006205A JP5189113B2 (ja) 2010-01-14 2010-01-14 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置
US12/984,635 US8705327B2 (en) 2010-01-14 2011-01-05 Head for thermal assisted magnetic recording device, and thermal assisted magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010006205A JP5189113B2 (ja) 2010-01-14 2010-01-14 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置

Publications (3)

Publication Number Publication Date
JP2011146097A JP2011146097A (ja) 2011-07-28
JP2011146097A5 JP2011146097A5 (https=) 2012-03-29
JP5189113B2 true JP5189113B2 (ja) 2013-04-24

Family

ID=44258422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010006205A Expired - Fee Related JP5189113B2 (ja) 2010-01-14 2010-01-14 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置

Country Status (2)

Country Link
US (1) US8705327B2 (https=)
JP (1) JP5189113B2 (https=)

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US8284637B2 (en) * 2010-01-25 2012-10-09 Headway Technologies, Inc. Shaped plasmon generators for thermally-assisted magnetic recording
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JP2011146097A (ja) 2011-07-28
US20110170381A1 (en) 2011-07-14

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