SG120168A1 - Magnetic head having a write coil structure with areduced electrical resistance for reducing therma l protrusion - Google Patents

Magnetic head having a write coil structure with areduced electrical resistance for reducing therma l protrusion

Info

Publication number
SG120168A1
SG120168A1 SG200403776A SG200403776A SG120168A1 SG 120168 A1 SG120168 A1 SG 120168A1 SG 200403776 A SG200403776 A SG 200403776A SG 200403776 A SG200403776 A SG 200403776A SG 120168 A1 SG120168 A1 SG 120168A1
Authority
SG
Singapore
Prior art keywords
areduced
therma
protrusion
reducing
magnetic head
Prior art date
Application number
SG200403776A
Other languages
English (en)
Inventor
David Hsiao Wen-Chien
Hin Pong Lee Edward
Nitikin Vladimir
Weisan Yuan Samuel
Original Assignee
Hitachi Global Storage Tech
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 Global Storage Tech filed Critical Hitachi Global Storage Tech
Publication of SG120168A1 publication Critical patent/SG120168A1/en

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
    • G11B5/127—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
    • G11B5/127—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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
SG200403776A 2003-07-29 2004-06-30 Magnetic head having a write coil structure with areduced electrical resistance for reducing therma l protrusion SG120168A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/629,060 US7079353B2 (en) 2003-07-29 2003-07-29 Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion

Publications (1)

Publication Number Publication Date
SG120168A1 true SG120168A1 (en) 2006-03-28

Family

ID=33541470

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200403776A SG120168A1 (en) 2003-07-29 2004-06-30 Magnetic head having a write coil structure with areduced electrical resistance for reducing therma l protrusion

Country Status (7)

Country Link
US (2) US7079353B2 (https=)
EP (1) EP1503373B1 (https=)
JP (1) JP2005050509A (https=)
KR (1) KR20050013956A (https=)
CN (1) CN1291379C (https=)
DE (1) DE602004018715D1 (https=)
SG (1) SG120168A1 (https=)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6947246B2 (en) * 2003-08-29 2005-09-20 Hitachi Global Storage Technologies Netherlands, B.V. Large protrusion recording head for controlled magnetic spacing recording/reading
US7397625B2 (en) * 2003-08-29 2008-07-08 Hitachi Global Storage Technologies Netherlands B.V. Large protrusion recording head for controlled magnetic spacing recording/reading
US7272883B2 (en) * 2003-08-29 2007-09-25 Hitachi Global Storage Technologies Netherlands B.V. Methods of forming an electrical connection in a magnetic head using a damascene process
US7199974B1 (en) * 2004-02-02 2007-04-03 Western Digital (Fremont), Inc. Read/write head with reduced pole tip protrusion
JP2006120274A (ja) * 2004-10-25 2006-05-11 Hitachi Global Storage Technologies Netherlands Bv 薄膜磁気ヘッド
JP2006252620A (ja) * 2005-03-09 2006-09-21 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びその製造方法
US7952375B2 (en) * 2006-06-06 2011-05-31 Formfactor, Inc. AC coupled parameteric test probe
US7633710B2 (en) * 2006-06-28 2009-12-15 Hitachi Global Storage Technologies B.V. Magnetic head having reduced induction coil electrical resistance and method for the fabrication thereof
US7804662B2 (en) * 2006-12-26 2010-09-28 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording head including wrap around shield with notched top write gap and method of fabricating the same
US7633711B2 (en) * 2007-02-07 2009-12-15 Hitachi Global Storage Technologies Netherlands B.V. Magnetic write head with helical coil structure using multiple materials
US7835111B2 (en) * 2007-02-15 2010-11-16 Hitachi Global Storage Technologies Netherlands B.V. Magnetic write head with upper return pole optimization for reduced trailing shield protrusion
US7440220B1 (en) 2007-05-29 2008-10-21 Western Digital (Fremont), Llc Method for defining a touch-down power for head having a flying height actuator
US7436620B1 (en) 2007-05-29 2008-10-14 Western Digital (Fremont), Llc Method for selecting an electrical power to be applied to a head-based flying height actuator
US8066892B2 (en) * 2008-09-30 2011-11-29 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a perpendicular magnetic write head with a wrap around shield
US20100290157A1 (en) * 2009-05-14 2010-11-18 Western Digital (Fremont), Llc Damascene coil processes and structures
US8681446B2 (en) 2011-12-21 2014-03-25 Seagate Technology Llc Methods and devices including multiple resistive heating elements
CN102601097A (zh) * 2012-03-01 2012-07-25 浙江工业大学 一种分离餐厨废弃物中固体杂质和油脂的装置和方法
US8947807B2 (en) 2012-12-20 2015-02-03 Seagate Technology Llc Independently driven write coils
US11393776B2 (en) * 2018-05-17 2022-07-19 Advanced Semiconductor Engineering, Inc. Semiconductor device package and method of manufacturing the same
WO2021258303A1 (zh) * 2020-06-23 2021-12-30 庆鼎精密电子（淮安）有限公司 相机模组及其制备方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US60879A (en) * 1867-01-01 Nicholas gotten
US174435A (en) * 1876-03-07 Improvement in wire-fence-barb formers
US5331495A (en) * 1990-06-11 1994-07-19 Fuji Photo Film Co., Ltd. Thin film magnetic head and methods for producing same
US5173826A (en) * 1991-06-03 1992-12-22 Read-Rite Corp. Thin film head with coils of varying thickness
US6043959A (en) * 1998-03-23 2000-03-28 Read-Rite Corporation Inductive write head formed with flat yoke and merged with magnetoresistive read transducer
US6191918B1 (en) * 1998-10-23 2001-02-20 International Business Machines Corporation Embedded dual coil planar structure
US6226149B1 (en) * 1998-12-15 2001-05-01 International Business Machines Corporation Planar stitched write head having write coil insulated with inorganic insulation
JP2000268321A (ja) * 1999-03-18 2000-09-29 Alps Electric Co Ltd 薄膜磁気ヘッド
US6466402B1 (en) * 1999-06-18 2002-10-15 Read-Rite Corporation Compact MR write structure
US6396660B1 (en) * 1999-08-23 2002-05-28 Read-Rite Corporation Magnetic write element having a thermally dissipative structure
US6452742B1 (en) * 1999-09-02 2002-09-17 Read-Rite Corporation Thin film write having reduced resistance conductor coil partially recessed within middle coat insulation
JP2001076320A (ja) * 1999-09-02 2001-03-23 Tdk Corp 薄膜磁気ヘッドおよびその製造方法
US7023658B1 (en) * 2000-02-08 2006-04-04 Western Digital (Fremont), Inc. Submicron track-width pole-tips for electromagnetic transducers
JP2001250203A (ja) * 2000-03-08 2001-09-14 Fujitsu Ltd 薄膜磁気ヘッドの製造方法
JP2002025006A (ja) * 2000-07-11 2002-01-25 Tdk Corp 薄膜磁気ヘッド及び薄膜磁気ヘッドの製造方法
JP2002157707A (ja) 2000-11-21 2002-05-31 Alps Electric Co Ltd 薄膜磁気ヘッド
US7117583B2 (en) 2002-03-18 2006-10-10 International Business Machines Corporation Method and apparatus using a pre-patterned seed layer for providing an aligned coil for an inductive head structure
US7035046B1 (en) * 2002-03-19 2006-04-25 Western Digital (Fremont), Inc. System and method for minimizing thermal pole tip protrusion
US6927939B2 (en) * 2003-01-30 2005-08-09 Headway Technologies, Inc. Thin-film magnetic head and method of manufacturing same

Also Published As

Publication number Publication date
EP1503373A1 (en) 2005-02-02
US7190552B2 (en) 2007-03-13
CN1291379C (zh) 2006-12-20
DE602004018715D1 (de) 2009-02-12
JP2005050509A (ja) 2005-02-24
US20060152849A1 (en) 2006-07-13
KR20050013956A (ko) 2005-02-05
US7079353B2 (en) 2006-07-18
US20050024764A1 (en) 2005-02-03
CN1577494A (zh) 2005-02-09
EP1503373B1 (en) 2008-12-31

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