JP2010027156A - 磁気記録装置及び接触検出方法 - Google Patents

磁気記録装置及び接触検出方法 Download PDF

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Publication number
JP2010027156A
JP2010027156A JP2008188245A JP2008188245A JP2010027156A JP 2010027156 A JP2010027156 A JP 2010027156A JP 2008188245 A JP2008188245 A JP 2008188245A JP 2008188245 A JP2008188245 A JP 2008188245A JP 2010027156 A JP2010027156 A JP 2010027156A
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Japan
Prior art keywords
head
magnetic
contact
magnetic disk
protective film
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Pending
Application number
JP2008188245A
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English (en)
Japanese (ja)
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JP2010027156A5 (enExample
Inventor
Atsushi Watanabe
淳 渡邉
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Toshiba Storage Device Corp
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Toshiba Storage Device Corp
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Publication date
Application filed by Toshiba Storage Device Corp filed Critical Toshiba Storage Device Corp
Priority to JP2008188245A priority Critical patent/JP2010027156A/ja
Priority to US12/476,828 priority patent/US7903365B2/en
Publication of JP2010027156A publication Critical patent/JP2010027156A/ja
Publication of JP2010027156A5 publication Critical patent/JP2010027156A5/ja
Pending legal-status Critical Current

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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
    • G11B5/48—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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
    • 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
JP2008188245A 2008-07-22 2008-07-22 磁気記録装置及び接触検出方法 Pending JP2010027156A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008188245A JP2010027156A (ja) 2008-07-22 2008-07-22 磁気記録装置及び接触検出方法
US12/476,828 US7903365B2 (en) 2008-07-22 2009-06-02 Magnetic storage device and contact detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008188245A JP2010027156A (ja) 2008-07-22 2008-07-22 磁気記録装置及び接触検出方法

Publications (2)

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JP2010027156A true JP2010027156A (ja) 2010-02-04
JP2010027156A5 JP2010027156A5 (enExample) 2010-12-09

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ID=41568429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008188245A Pending JP2010027156A (ja) 2008-07-22 2008-07-22 磁気記録装置及び接触検出方法

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US (1) US7903365B2 (enExample)
JP (1) JP2010027156A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014149897A (ja) * 2013-02-01 2014-08-21 Fuji Electric Co Ltd 磁気記録媒体の記録再生方法
JP2021131917A (ja) * 2020-02-18 2021-09-09 株式会社東芝 ディスク装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8523312B2 (en) 2010-11-08 2013-09-03 Seagate Technology Llc Detection system using heating element temperature oscillations
JP5807069B2 (ja) 2010-11-17 2015-11-10 シーゲイト テクノロジー エルエルシー 抵抗センサの多段温度係数を使用した凹凸検知およびヘッドと媒体との接触検知
US9047902B1 (en) 2011-06-15 2015-06-02 Western Digital (Fremont), Llc Touchdown sensor having a more stable crystal structure for use in hard disk drives
US8599512B2 (en) 2011-09-16 2013-12-03 Western Digital Technologies, Inc. Current sensor comprising differential amplifier biased by leakage current
US9251829B2 (en) 2011-10-17 2016-02-02 Sae Magnetics (Hk) Ltd. Head DFH protrusion shape calibration by HDI sensor
US9123386B2 (en) * 2011-11-03 2015-09-01 Agency For Science, Technology And Research Data storage system and a method for measuring a change in a spacing between a head and a storage medium of a data storage system
JP5882698B2 (ja) * 2011-12-01 2016-03-09 株式会社日立製作所 情報記憶装置
US8837081B1 (en) 2011-12-06 2014-09-16 Western Digital (Fremont), Llc Laminated touchdown sensor for hard disk drives
US8681442B2 (en) 2012-05-11 2014-03-25 Western Digital Technologies, Inc. Disk drive comprising extended range head proximity sensor
US9042208B1 (en) 2013-03-11 2015-05-26 Western Digital Technologies, Inc. Disk drive measuring fly height by applying a bias voltage to an electrically insulated write component of a head
US9123371B2 (en) 2013-10-10 2015-09-01 Seagate Technology Llc Methods and devices for head-media contact detection
JP6158050B2 (ja) * 2013-11-28 2017-07-05 株式会社東芝 電子機器、方法及びプログラム
JP2022118967A (ja) 2021-02-03 2022-08-16 株式会社東芝 磁気ディスク装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233411A (ja) * 1985-04-08 1986-10-17 Fujitsu Ltd 磁気デイスク装置
JP2002190173A (ja) * 2000-12-21 2002-07-05 Toshiba Corp ディスク記憶装置及びヘッド衝突回避方法
JP2002197646A (ja) * 2000-12-27 2002-07-12 Fujitsu Ltd ディスク表面検査装置
JP2005004909A (ja) * 2003-06-13 2005-01-06 Hitachi Global Storage Technologies Inc 磁気ディスク装置および磁気ヘッドスライダの浮上制御方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2770881B2 (ja) 1989-07-24 1998-07-02 キヤノン株式会社 磁気記録装置
JP3158487B2 (ja) * 1991-05-23 2001-04-23 株式会社日立製作所 ヘッド支持機構
JPH0520635A (ja) 1991-07-11 1993-01-29 Fujitsu Ltd 磁気ヘツドおよび磁気デイスク装置
US5594595A (en) * 1995-01-19 1997-01-14 Conner Peripherals, Inc. FM detection of slider-disk interface
JPH0916953A (ja) 1995-06-28 1997-01-17 Nec Corp グライドハイト測定方法及び装置
JP2885178B2 (ja) 1996-04-16 1999-04-19 日本電気株式会社 磁気ディスク装置の信頼性評価法及びそれを利用した磁気ディスク装置
US7450333B2 (en) * 2006-12-29 2008-11-11 Hitachi Global Storage Technologies Netherlands B.V. Electrostatic fly-height control
US7830634B2 (en) * 2008-12-23 2010-11-09 Hitachi Global Storage Technologies Netherlands, B.V. Head-disk contact detection and work function difference determination

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233411A (ja) * 1985-04-08 1986-10-17 Fujitsu Ltd 磁気デイスク装置
JP2002190173A (ja) * 2000-12-21 2002-07-05 Toshiba Corp ディスク記憶装置及びヘッド衝突回避方法
JP2002197646A (ja) * 2000-12-27 2002-07-12 Fujitsu Ltd ディスク表面検査装置
JP2005004909A (ja) * 2003-06-13 2005-01-06 Hitachi Global Storage Technologies Inc 磁気ディスク装置および磁気ヘッドスライダの浮上制御方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014149897A (ja) * 2013-02-01 2014-08-21 Fuji Electric Co Ltd 磁気記録媒体の記録再生方法
JP2021131917A (ja) * 2020-02-18 2021-09-09 株式会社東芝 ディスク装置
JP7179793B2 (ja) 2020-02-18 2022-11-29 株式会社東芝 ディスク装置

Also Published As

Publication number Publication date
US7903365B2 (en) 2011-03-08
US20100020439A1 (en) 2010-01-28

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