DE602008000558D1 - Laufwerksvorrichtung und Verfahren zur adaptiven Steuerung der Flughöhe eines Magnetkopfs darin - Google Patents

Laufwerksvorrichtung und Verfahren zur adaptiven Steuerung der Flughöhe eines Magnetkopfs darin

Info

Publication number
DE602008000558D1
DE602008000558D1 DE602008000558T DE602008000558T DE602008000558D1 DE 602008000558 D1 DE602008000558 D1 DE 602008000558D1 DE 602008000558 T DE602008000558 T DE 602008000558T DE 602008000558 T DE602008000558 T DE 602008000558T DE 602008000558 D1 DE602008000558 D1 DE 602008000558D1
Authority
DE
Germany
Prior art keywords
magnetic head
drive apparatus
flying height
adaptively controlling
adaptively
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.)
Active
Application number
DE602008000558T
Other languages
English (en)
Inventor
Jong-Iak Park
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE602008000558D1 publication Critical patent/DE602008000558D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
    • G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • 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
    • G11B5/3136—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 for reducing the pole-tip-protrusion at the head transducing surface, e.g. caused by thermal expansion of dissimilar materials
    • 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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 
    • 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
    • G11B5/6011—Control of flying height
    • G11B5/6064—Control of flying height using air pressure
    • 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
    • G11B5/6011—Control of flying height

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Digital Magnetic Recording (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
DE602008000558T 2007-04-05 2008-03-28 Laufwerksvorrichtung und Verfahren zur adaptiven Steuerung der Flughöhe eines Magnetkopfs darin Active DE602008000558D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070033758A KR100825812B1 (ko) 2007-04-05 2007-04-05 적응적 자기 헤드 비행 높이 조정 방법 및 이를 이용한디스크 드라이브

Publications (1)

Publication Number Publication Date
DE602008000558D1 true DE602008000558D1 (de) 2010-03-11

Family

ID=39487226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602008000558T Active DE602008000558D1 (de) 2007-04-05 2008-03-28 Laufwerksvorrichtung und Verfahren zur adaptiven Steuerung der Flughöhe eines Magnetkopfs darin

Country Status (6)

Country Link
US (1) US7961420B2 (de)
EP (1) EP1978510B1 (de)
JP (1) JP5165445B2 (de)
KR (1) KR100825812B1 (de)
CN (1) CN101359481B (de)
DE (1) DE602008000558D1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008310904A (ja) * 2007-06-15 2008-12-25 Fujitsu Ltd 制御装置、記憶装置、ヒータ設定値決定プログラムおよび記憶装置製造方法
US7586711B2 (en) * 2007-12-10 2009-09-08 Hitachi Global Storage Technologies Netherlands B.V. Magnetic performance of a magnetic transducer operating within a hard disk drive
KR20100104168A (ko) * 2009-03-17 2010-09-29 삼성전자주식회사 하드디스크 드라이브의 ｆｏｄ 전압 제어 방법
US8653824B1 (en) * 2009-12-16 2014-02-18 Western Digital (Fremont), Llc Delta temperature test method and system
JP4829353B2 (ja) 2010-02-26 2011-12-07 株式会社東芝 ディスク記憶装置及びヘッド浮上量制御方法
KR20110108180A (ko) * 2010-03-26 2011-10-05 삼성전자주식회사 헤드의 터치-다운 검출 방법 및 이를 이용한 헤드 부상 높이 조정 방법 및 디스크 드라이브
KR20130007180A (ko) * 2011-06-30 2013-01-18 시게이트 테크놀로지 엘엘씨 하드디스크 드라이브 및 하드디스크 드라이브의 자기 헤드의 부상높이 제어 방법
US8767339B2 (en) * 2012-03-20 2014-07-01 Sae Magnetics (Hk) Ltd. Spacing fluctuation compensation
US8717702B2 (en) * 2012-03-20 2014-05-06 SAE Magnetics (HK) Lid. Measurement of spacing fluctuation
US8902718B1 (en) * 2013-05-21 2014-12-02 Western Digital Technologies, Inc. Disk drive calibrating dynamic fly height write profile for fly height actuator
US9007882B1 (en) * 2013-07-31 2015-04-14 Seagate Technology Llc Heater to keep reader head in stable temperature range
US9177599B1 (en) 2013-10-24 2015-11-03 Seagate Technology Llc Non-contact fly height calibration and compensation
US9001453B1 (en) 2014-07-18 2015-04-07 Western Digital Technologies, Inc. Data storage device calibrating fly height actuator based on read mode touchdown resistance of touchdown sensor
US9153266B1 (en) 2014-09-11 2015-10-06 Western Digital Technologies, Inc. Data storage device measuring laser protrusion fly height profile
US9466330B1 (en) * 2015-11-12 2016-10-11 Kabushiki Kaisha Toshiba Correction value calculating method, manufacturing method of disk drive, and disk drive
US10311905B1 (en) 2018-03-27 2019-06-04 Seagate Technology Llc Methods, devices, and systems for establishing fly-height parameters for hard disk drives
US10878844B1 (en) * 2020-03-12 2020-12-29 Western Digital Technologies, Inc. Data storage device controlling head fly height based on temperature

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991113A (en) * 1997-04-07 1999-11-23 Seagate Technology, Inc. Slider with temperature responsive transducer positioning
JP2004079126A (ja) 2002-08-22 2004-03-11 Toshiba Corp 磁気ディスク装置
JP2004185735A (ja) 2002-12-04 2004-07-02 Matsushita Electric Ind Co Ltd 磁気ヘッドアセンブリおよび磁気ディスク装置
JP4076434B2 (ja) * 2002-12-12 2008-04-16 株式会社日立グローバルストレージテクノロジーズ 磁気ヘッド及びヘッド・ジンバル・アセンブリ
US7042670B2 (en) 2003-07-11 2006-05-09 Sae Magnetics (H.K.) Ltd. Method for adjusting flying height of magnetic heads using an electrical charge through an electrical pad on the slider
JP4289670B2 (ja) 2004-02-25 2009-07-01 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 データ記憶装置及びその制御方法
US7268966B2 (en) 2004-09-30 2007-09-11 Hitachi Global Storage Technologies Netherlands, B.V. System and method for adjusting fly heights in a hard disk drive having multiple heads
JP2006164388A (ja) 2004-12-07 2006-06-22 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッドスライダの浮上量制御方法および磁気ディスク装置
JP2006196141A (ja) * 2004-12-13 2006-07-27 Tdk Corp 発熱手段を備えた薄膜磁気ヘッド、該薄膜磁気ヘッドを備えたヘッドジンバルアセンブリ及び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
JP2006344270A (ja) * 2005-06-08 2006-12-21 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク装置及び磁気ヘッドスライダ
JP2007042239A (ja) * 2005-08-04 2007-02-15 Hitachi Global Storage Technologies Netherlands Bv 磁気ディスク装置及び磁気ディスク装置の製造方法
JP2007080409A (ja) * 2005-09-15 2007-03-29 Hitachi Global Storage Technologies Netherlands Bv ディスク・ドライブ及びその制御方法
JP4895560B2 (ja) * 2005-09-22 2012-03-14 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 データ記憶装置
JP4908869B2 (ja) * 2006-02-16 2012-04-04 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 磁気ディスク装置
JP4379814B2 (ja) * 2006-03-28 2009-12-09 富士通株式会社 記憶装置、制御方法、制御装置及びプログラム
JP2008047241A (ja) * 2006-08-18 2008-02-28 Tdk Corp 浮上量測定方法及び浮上量の調整が可能な磁気ディスク装置

Also Published As

Publication number Publication date
JP5165445B2 (ja) 2013-03-21
EP1978510A1 (de) 2008-10-08
US7961420B2 (en) 2011-06-14
CN101359481A (zh) 2009-02-04
EP1978510B1 (de) 2010-01-20
US20080247073A1 (en) 2008-10-09
KR100825812B1 (ko) 2008-04-29
JP2008257851A (ja) 2008-10-23
CN101359481B (zh) 2012-07-04

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