AU2001284008A1 - Method and apparatus for dynamically controlling the flying behaviour and heightof a read/write head in a storage device - Google Patents

Method and apparatus for dynamically controlling the flying behaviour and heightof a read/write head in a storage device

Info

Publication number
AU2001284008A1
AU2001284008A1 AU2001284008A AU8400801A AU2001284008A1 AU 2001284008 A1 AU2001284008 A1 AU 2001284008A1 AU 2001284008 A AU2001284008 A AU 2001284008A AU 8400801 A AU8400801 A AU 8400801A AU 2001284008 A1 AU2001284008 A1 AU 2001284008A1
Authority
AU
Australia
Prior art keywords
suspension arm
storage device
slider
heightof
read
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.)
Abandoned
Application number
AU2001284008A
Inventor
Andreas Dietzel
Friedrich Fleischmann
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of AU2001284008A1 publication Critical patent/AU2001284008A1/en
Abandoned legal-status Critical Current

Links

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
    • G11B5/48—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
    • 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
    • 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
    • G11B5/48—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
    • G11B5/4806—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 specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4833—Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the 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
    • 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
    • G11B5/607—Control of flying height using thermal means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/1058—Flying heads

Abstract

A suspension arm (300) of a disk storage device has an elastic portion (310) with thickness d1 and a rigid portion (320) with thickness d2. At the free end of the suspension arm, a slider (325) is mounted on the suspension arm. The bottom surface of the slider has a distance FH to a top surface of a hard disk (329). The suspension arm particularly comprises a heating element (330) disposed on the suspension arm. An electric current Ic flowing through electrical supply wires (350) causes the temperature of the suspension arm locally to rise and therefore its spring constant to decrease. Together with the force Fa resulting from the air cushion effect of the slider a new equilibrium flying height FH is stabilized.
AU2001284008A 2000-08-29 2001-08-11 Method and apparatus for dynamically controlling the flying behaviour and heightof a read/write head in a storage device Abandoned AU2001284008A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00118660 2000-08-29
EP00118660 2000-08-29
PCT/EP2001/009307 WO2002019330A1 (en) 2000-08-29 2001-08-11 Method and apparatus for dynamically controlling the flying behaviour and height of a read/write head in a storage device

Publications (1)

Publication Number Publication Date
AU2001284008A1 true AU2001284008A1 (en) 2002-03-13

Family

ID=8169683

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001284008A Abandoned AU2001284008A1 (en) 2000-08-29 2001-08-11 Method and apparatus for dynamically controlling the flying behaviour and heightof a read/write head in a storage device

Country Status (10)

Country Link
US (1) US6707646B2 (en)
EP (1) EP1314160B1 (en)
JP (1) JP2004508650A (en)
KR (1) KR100611089B1 (en)
CN (2) CN1267925C (en)
AT (1) ATE297591T1 (en)
AU (1) AU2001284008A1 (en)
DE (1) DE60111397T2 (en)
TW (1) TW563102B (en)
WO (1) WO2002019330A1 (en)

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DE102004010336A1 (en) * 2003-03-05 2004-09-16 Komag, Inc., San Jose Magnetic recording disc with transition zone
US7016154B2 (en) * 2003-03-05 2006-03-21 Komag, Inc. Magnetic recording disk having a safe zone
US6914752B2 (en) * 2003-03-26 2005-07-05 Hitachi Global Storage Technologies Netherlands B.V. Magnetic recording disk drive with continuous contact air-bearing slider
US7239485B2 (en) * 2003-08-21 2007-07-03 Seagate Technology Llc Localized heating element for a suspension assembly
US7072136B2 (en) * 2003-09-25 2006-07-04 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for dynamically establishing pitch static attitude in hard disk drive
US7023647B2 (en) * 2003-11-17 2006-04-04 Texas Instruments Incorporated Fly height control for a read/write head in a hard disk drive
US6967798B2 (en) * 2003-12-19 2005-11-22 Komag, Inc. Magnetic recording disk having DTR patterned CSS zone
JP4255869B2 (en) * 2004-03-24 2009-04-15 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 Magnetic disk drive and magnetic head slider used therefor
US7724473B1 (en) * 2004-04-29 2010-05-25 Seagate Technology Llc Slider with actuator-transducer separation and roll activation
US7660080B1 (en) 2004-04-30 2010-02-09 Western Digital (Fremont), Llc Read/write head with dynamic flying height control by magnetostriction
US7092195B1 (en) 2004-05-28 2006-08-15 Western Digital (Fremont), Inc. Method of using a magnetic write head having an internal heater
US7315436B1 (en) 2004-06-25 2008-01-01 Western Digital Technologies, Inc. Suspension assembly with a shape memory actuator coupled to a gimbal
US7436631B1 (en) * 2004-06-30 2008-10-14 Western Digital (Fremont), Llc Heated gimbal for magnetic head to disk clearance adjustment
US7126777B2 (en) * 2004-07-30 2006-10-24 Hitachi Global Storage Technologies Netherlands B.V. Disk drive with selectable power source for heater in a slider
US7495856B2 (en) * 2004-10-29 2009-02-24 Hitachi Global Storage Technologies Netherlands B.V. Disk drive slider design for thermal fly-height control and burnishing-on-demand
US7233456B2 (en) * 2004-11-05 2007-06-19 Hitachi Global Storage Technologies Netherlands B.V. Method for eliminating the need for a dedicated landing zone at the outer diameter of a storage system's platter
US20060146437A1 (en) * 2004-12-30 2006-07-06 Andrei Khurshudov Apparatus for detecting contact between a read-write head and the accessed disk surface in a hard disk drive
US7372665B1 (en) 2005-01-18 2008-05-13 Western Digital (Fremont), Llc Magnetic recording head with resistive heating element located near the write coil
US7428124B1 (en) 2005-01-18 2008-09-23 Western Digital (Fremont), Llc Magnetic recording head with resistive heating element and thermal barrier layer
US7430098B1 (en) 2005-01-18 2008-09-30 Western Digital (Fremont), Llc Perpendicular magnetic recording head with dynamic flying height heating element
US7190543B2 (en) * 2005-01-31 2007-03-13 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for optimizing flying height control using heated sliders
US7088545B1 (en) 2005-06-28 2006-08-08 Western Digital Technologies, Inc. Disk drive decreasing head temperature to increase fly-height during seek operation
US7330323B1 (en) 2005-06-28 2008-02-12 Western Digital Technologies, Inc. Disk drive determining a head-switch preheat period used to format a disk
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US7280305B2 (en) * 2006-01-13 2007-10-09 Samsung Electronics Co., Ltd. Method and apparatus for estimating and controlling the flying height of a read-write head in a hard disk drive
US7573668B2 (en) * 2006-01-16 2009-08-11 Samsung Electronics Co., Ltd. Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive
US7515372B2 (en) * 2006-04-03 2009-04-07 Seagate Technology Llc Compensating the effects of static head-media spacing variations and nonlinear transition shift in heat assisted magnetic recording
KR100761841B1 (en) * 2006-04-04 2007-09-28 삼성전자주식회사 Apparatus and method for controlling a flying height of magnetic head in retry mode and disk drive using the same
US20080055772A1 (en) * 2006-09-01 2008-03-06 Mcmillan Chris Method and apparatus for predicting contact of a read-write head in a hard disk drive
US7417820B2 (en) * 2006-12-11 2008-08-26 Tdk Corporation Head support mechanism, magnetic head assembly, and magnetic disk drive apparatus
KR100855973B1 (en) * 2007-01-24 2008-09-02 삼성전자주식회사 Hard disk drive for controlling flying height of head and the method using the hard disk drive
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KR100856127B1 (en) * 2007-02-12 2008-09-03 삼성전자주식회사 Hard Disk Drive, Method For Controlling Flying On Demand Using Thermal Asperity Signal, And Recording Media For Computer Program Therefor
US9659584B2 (en) * 2007-03-13 2017-05-23 Headway Technologies, Inc. Dynamic flying height read/write head with off-track contact capability at touch down in hard disk drives
KR100897561B1 (en) * 2007-04-27 2009-05-15 삼성전자주식회사 Hard Disk Drive, Method for Controlling Flying Height of Magnetic Head Thereof, And Recording Media For Computer Program Therefor
US8169743B2 (en) * 2007-07-20 2012-05-01 Hitachi Global Storage Technologies, Netherlands B.V. Minimizing slider vibration effects on a magnetic transducer
US7869163B2 (en) * 2007-08-23 2011-01-11 International Business Machines Corporation Air bearing at opposite side of linear tape to support tape into contact with head slider
US20090262458A1 (en) * 2008-04-21 2009-10-22 Sae Magnetics (Hk) Ltd. ABS design for dynamic flying height (DFH) applications
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Also Published As

Publication number Publication date
JP2004508650A (en) 2004-03-18
EP1314160B1 (en) 2005-06-08
KR20030033033A (en) 2003-04-26
CN1267925C (en) 2006-08-02
CN1447971A (en) 2003-10-08
CN1822194A (en) 2006-08-23
US6707646B2 (en) 2004-03-16
US20020024774A1 (en) 2002-02-28
EP1314160A1 (en) 2003-05-28
DE60111397D1 (en) 2005-07-14
KR100611089B1 (en) 2006-08-10
TW563102B (en) 2003-11-21
DE60111397T2 (en) 2006-03-16
ATE297591T1 (en) 2005-06-15
WO2002019330A1 (en) 2002-03-07

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