SG110171A1 - Head for perpendicular magnetic recording with a shield structure connected to the return pole piece - Google Patents

Head for perpendicular magnetic recording with a shield structure connected to the return pole piece

Info

Publication number
SG110171A1
SG110171A1 SG200405519A SG200405519A SG110171A1 SG 110171 A1 SG110171 A1 SG 110171A1 SG 200405519 A SG200405519 A SG 200405519A SG 200405519 A SG200405519 A SG 200405519A SG 110171 A1 SG110171 A1 SG 110171A1
Authority
SG
Singapore
Prior art keywords
head
magnetic recording
pole piece
perpendicular magnetic
shield structure
Prior art date
Application number
SG200405519A
Other languages
English (en)
Inventor
Hsu Yimin
Le Quang
Lamar Nix James
Lamar Williams Mason
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 SG110171A1 publication Critical patent/SG110171A1/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • 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
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • G11B5/315—Shield layers on both sides of the main pole, e.g. in perpendicular magnetic 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
SG200405519A 2003-09-30 2004-09-29 Head for perpendicular magnetic recording with a shield structure connected to the return pole piece SG110171A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/676,742 US7002775B2 (en) 2003-09-30 2003-09-30 Head for perpendicular magnetic recording with a shield structure connected to the return pole piece

Publications (1)

Publication Number Publication Date
SG110171A1 true SG110171A1 (en) 2005-04-28

Family

ID=34314039

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200405519A SG110171A1 (en) 2003-09-30 2004-09-29 Head for perpendicular magnetic recording with a shield structure connected to the return pole piece

Country Status (5)

Country Link
US (1) US7002775B2 (fr)
EP (1) EP1522991A1 (fr)
KR (1) KR20050031937A (fr)
CN (1) CN1308920C (fr)
SG (1) SG110171A1 (fr)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
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JP2004342210A (ja) * 2003-05-15 2004-12-02 Tdk Corp 垂直磁気記録用磁気ヘッドおよびその製造方法、ヘッドジンバルアセンブリならびにハードディスク装置
US8643979B2 (en) * 2003-05-23 2014-02-04 The Regents Of The University Of California Tapered single pole magnetic heads for perpendicular magnetic recording
US7583477B2 (en) * 2003-06-30 2009-09-01 Seagate Technology Llc Magnetic recording head with a point writer pole
US7031121B2 (en) * 2003-07-30 2006-04-18 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece
US7508624B1 (en) 2003-08-01 2009-03-24 Lauer Mark A Transducers for perpendicular recording with write pole tip angled toward media
US7042682B2 (en) * 2003-10-17 2006-05-09 Headway Technologies, Inc. Fully shielded perpendicular recoding writer
US7233457B2 (en) * 2003-12-16 2007-06-19 Seagate Technology Llc Head for perpendicular recording with reduced erasure
JP4260002B2 (ja) * 2003-12-24 2009-04-30 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 磁気ヘッドとその製造方法および磁気記録再生装置
US7212379B2 (en) * 2004-03-31 2007-05-01 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording head with flare and taper configurations
US7193815B1 (en) 2004-04-06 2007-03-20 Western Digital (Fremont), Inc. Shielded pole magnetic head for perpendicular recording
US7322095B2 (en) * 2004-04-21 2008-01-29 Headway Technologies, Inc. Process of manufacturing a four-sided shield structure for a perpendicular write head
US7580222B2 (en) * 2004-06-18 2009-08-25 Headway Technologies, Inc. Thin-film magnetic head, a head gimbal assembly and hard disk drive
US7440229B2 (en) * 2004-06-18 2008-10-21 Headway Technologies, Inc. Thin-film magnetic head having a write shield layer
US7295401B2 (en) * 2004-10-27 2007-11-13 Hitachi Global Storage Technologies Netherlands B.V. Laminated side shield for perpendicular write head for improved performance
JP2006164356A (ja) * 2004-12-03 2006-06-22 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及び磁気記録再生装置
US7903372B2 (en) * 2005-01-11 2011-03-08 Samsung Electronics Co., Ltd. Magnetic recording head and method of manufacturing the same
JP2006244671A (ja) * 2005-03-07 2006-09-14 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びその製造方法
US7639450B2 (en) * 2005-04-27 2009-12-29 Hitachi Global Storage Technologies Netherlands B.V. Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head
US7551396B2 (en) * 2005-04-27 2009-06-23 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset
KR100718127B1 (ko) * 2005-04-28 2007-05-14 삼성전자주식회사 수직 자기 기록헤드
JP2007035082A (ja) * 2005-07-22 2007-02-08 Hitachi Global Storage Technologies Netherlands Bv 垂直記録用磁気ヘッド及びその製造方法
KR100682949B1 (ko) * 2005-07-27 2007-02-15 삼성전자주식회사 갭 실드를 포함하는 수직 자기 기록 헤드 및 수직 자기 기록 장치
US20070035878A1 (en) * 2005-08-10 2007-02-15 Hung-Chin Guthrie Perpendicular head with self-aligned notching trailing shield process
KR100763904B1 (ko) * 2005-08-12 2007-10-05 삼성전자주식회사 수직 자기 헤드 및 그 제조 방법
JP2007128581A (ja) * 2005-11-02 2007-05-24 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びその製造方法
US7454828B2 (en) * 2005-11-23 2008-11-25 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a magnetic write head
US7898773B2 (en) * 2006-02-02 2011-03-01 Headway Technologies, Inc. Perpendicular magnetic recording head with a side write shield
US20070183093A1 (en) * 2006-02-07 2007-08-09 Quang Le Protective layer for CMP assisted lift-off process and method of fabrication
US7609479B2 (en) * 2006-03-10 2009-10-27 Headway Technologies, Inc. Magnetic head for perpendicular magnetic recording and method of manufacturing same
US7881019B2 (en) * 2006-03-28 2011-02-01 Hitachi Global Storage Technologies Netherlands B.V. Two step corner recess for secondary stray field reduction in a perpendicular magnetic recording head
US7576951B2 (en) * 2006-04-25 2009-08-18 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge
US7538976B2 (en) * 2006-04-25 2009-05-26 Hitachi Global Storage Technologies B.V. Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system
JP2007294059A (ja) * 2006-04-27 2007-11-08 Hitachi Global Storage Technologies Netherlands Bv 垂直記録磁気ヘッド
JP4287457B2 (ja) 2006-05-11 2009-07-01 株式会社東芝 垂直記録用磁気ヘッドおよび磁気ディスク装置
US7712206B2 (en) * 2006-05-22 2010-05-11 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a magnetic write head having a trailing shield with an accurately controlled trailing shield gap thickness
US7633714B2 (en) 2006-07-26 2009-12-15 Headway Technologies, Inc. Magnetic head for perpendicular magnetic recording and method of manufacturing same
US7843665B2 (en) * 2006-09-11 2010-11-30 Headway Technologies, Inc. Perpendicular magnetic recording head with nonmagnetic metal layer even with top face of pole layer
US7889458B2 (en) * 2006-11-13 2011-02-15 Hitachi Global Storage Technologies Netherlands B.V. Write head with self-cross biased pole for high speed magnetic recording
US20080112088A1 (en) * 2006-11-13 2008-05-15 Hitachi Global Storage Technologies Perpendicular magnetic write head having a wrap around trailing shield with a flux return path
US7558019B2 (en) * 2006-11-16 2009-07-07 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording write head with flux-conductor contacting write pole
US8689430B1 (en) * 2006-11-29 2014-04-08 Western Digital (Fremont), Llc Method for providing a perpendicular magnetic recording (PMR)head
JP2008152850A (ja) * 2006-12-15 2008-07-03 Tdk Corp 磁気ヘッド及び磁気記録再生装置
JP2008204503A (ja) 2007-02-16 2008-09-04 Hitachi Global Storage Technologies Netherlands Bv 磁気ヘッド及びその製造方法
ES2342638B1 (es) * 2007-02-28 2011-05-13 GAMESA INNOVATION & TECHNOLOGY, S.L. Una pala de aerogenerador multi-panel.
US8634162B2 (en) * 2007-03-08 2014-01-21 HGST Netherlands B.V. Perpendicular write head having a stepped flare structure and method of manufacture thereof
US7979978B2 (en) * 2007-03-27 2011-07-19 Headway Technologies, Inc. Method for manufacturing a self-aligned full side shield PMR
US7804666B2 (en) * 2007-04-13 2010-09-28 Headway Technologies, Inc. Composite shield structure of PMR writer for high track density
US7872835B2 (en) * 2007-04-13 2011-01-18 Headway Technologies, Inc. Optimized write pole flare angle for side shield or semi side shield PMR writer application
US7894159B2 (en) * 2007-04-19 2011-02-22 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular write head with independent trailing shield designs
JP2008276817A (ja) * 2007-04-25 2008-11-13 Tdk Corp 垂直磁気記録ヘッド
JP2008282448A (ja) * 2007-05-08 2008-11-20 Tdk Corp 垂直磁気記録ヘッド
US7770281B2 (en) * 2007-05-10 2010-08-10 Hitachi Global Storage Technologies Netherlands B.V. Method for redefining the trailing shield throat height in a perpendicular magnetic recording write head
US7768743B2 (en) * 2007-05-11 2010-08-03 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording write head with trailing shield having notch and throat height defined by nonmagnetic pad layer
US7978431B2 (en) * 2007-05-31 2011-07-12 Headway Technologies, Inc. Method to make a perpendicular magnetic recording head with a bottom side shield
US7950137B2 (en) * 2007-06-21 2011-05-31 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a magnetic write head
KR100924695B1 (ko) * 2007-06-28 2009-11-03 삼성전자주식회사 수직 자기 기록 헤드 및 그 제조방법
US7995307B2 (en) * 2007-07-19 2011-08-09 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording write head with trailing shield having throat height defined by electroplated nonmagnetic pad layer and method for making the head
US8035930B2 (en) * 2007-10-03 2011-10-11 Headway Technologies, Inc. Perpendicular magnetic recording write head with a side shield
US8056213B2 (en) 2007-10-03 2011-11-15 Headway Technologies, Inc. Method to make PMR head with integrated side shield (ISS)
JP2009104727A (ja) * 2007-10-24 2009-05-14 Fujitsu Ltd 垂直磁気記録ヘッド及びこれを用いた磁気記録装置
US8108985B2 (en) 2007-11-02 2012-02-07 Hitachi Global Storage Technologies Netherlands B.V. Method for manufacturing a perpendicular magnetic write head
KR20090047730A (ko) * 2007-11-08 2009-05-13 삼성전자주식회사 자기 기록 헤드 및 그 제조 방법
US7889456B2 (en) * 2007-11-13 2011-02-15 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording write head with flux shaping layers on the write pole and magnetic recording system incorporating the write head
US7920358B2 (en) * 2007-12-06 2011-04-05 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording write head with magnetic shields separated by nonmagnetic layers
US8000059B2 (en) * 2007-12-12 2011-08-16 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic write head with a thin wrap around magnetic shield
US7990651B2 (en) * 2007-12-13 2011-08-02 Hitachi Global Storage Technologies Netherlands B.V. Method of manufacturing a perpendicular magnetic write head with stepped trailing magnetic shield with electrical lapping guide control
US20090262636A1 (en) * 2008-04-18 2009-10-22 Seagate Technology Llc Wire-assisted magnetic write device including multiple wire assist conductors
US8276258B1 (en) * 2008-08-26 2012-10-02 Western Digital (Fremont), Llc Method for fabricating a magnetic recording transducer
US8166631B1 (en) 2008-08-27 2012-05-01 Western Digital (Fremont), Llc Method for fabricating a magnetic recording transducer having side shields
US8720044B1 (en) 2008-09-26 2014-05-13 Western Digital (Fremont), Llc Method for manufacturing a magnetic recording transducer having side shields
JP2010146639A (ja) * 2008-12-18 2010-07-01 Hitachi Global Storage Technologies Netherlands Bv 垂直記録用磁気ヘッド
US8116032B2 (en) * 2009-04-06 2012-02-14 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetization
US8116031B2 (en) * 2009-04-06 2012-02-14 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization
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US8351155B2 (en) * 2009-08-17 2013-01-08 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording system with spin torque oscillator and control circuitry for fast switching of write pole magnetization
US8446690B2 (en) * 2009-08-17 2013-05-21 HGST Netherlands B.V. Perpendicular magnetic recording write head with spin torque oscillator for fast switching of write pole magnetization
US8179633B2 (en) * 2009-08-28 2012-05-15 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization
JP4693923B2 (ja) * 2009-09-29 2011-06-01 株式会社東芝 磁気ヘッド、およびこれを備えたディスク装置
US8842389B2 (en) * 2009-10-26 2014-09-23 Headway Technologies, Inc. Wrap-around shielded writer with highly homogeneous shield material
JP2011123962A (ja) * 2009-12-11 2011-06-23 Hitachi Global Storage Technologies Netherlands Bv 磁気記録ヘッド及び磁気ディスク記憶装置
US8289647B2 (en) 2010-02-23 2012-10-16 Seagate Technology Llc Magnetic recording head with notched shield
US8254059B2 (en) 2010-12-06 2012-08-28 Hitachi Global Storage Technologies Netherlands B.V. Perpendicular magnetic recording head with domain controlled side shield
US8582234B2 (en) * 2011-04-25 2013-11-12 Seagate Technology Llc Shaped magnetic write pole
US8411384B2 (en) * 2011-06-06 2013-04-02 HGST Netherlands B.V. Writer having a shield structure for adjacent and far track interference refreshment
US9099108B2 (en) * 2011-07-06 2015-08-04 Seagate Technology Llc Magnetically biased write pole
US8801943B2 (en) 2011-07-28 2014-08-12 HGST Netherlands B.V. Method for manufacturing wraparound shield write head using hard masks
US8792208B1 (en) 2012-05-25 2014-07-29 Western Digital (Fremont), Llc Method for providing side shields having non-conformal regions for a magnetic recording transducer
US9263067B1 (en) 2013-05-29 2016-02-16 Western Digital (Fremont), Llc Process for making PMR writer with constant side wall angle
US9196267B2 (en) 2013-06-28 2015-11-24 Seagate Technology Llc Data writer with flux density insert
US9275657B1 (en) 2013-08-14 2016-03-01 Western Digital (Fremont), Llc Process for making PMR writer with non-conformal side gaps
US20150092303A1 (en) 2013-10-01 2015-04-02 HGST Netherlands B.V. Graded side shield gap reader
US8976493B1 (en) 2013-12-11 2015-03-10 HGST Netherlands B.V. Magnetic read sensor with novel pinned layer and side shield design for improved data track resolution and magnetic pinning robustness
US9269378B2 (en) * 2013-12-20 2016-02-23 HGST Netherlands B.V. Stray field shielding for perpendicular magnetic recording write head
US9153253B2 (en) 2014-01-08 2015-10-06 Tdk Corporation Perpendicular magnetic recording head and magnetic recording unit having leading shield including exposed end surface and recess shield including mid part
US8929027B1 (en) * 2014-04-28 2015-01-06 HGST Netherlands B.V. Magnetic write head with tapered side gap for reduced far track interference
US9286919B1 (en) 2014-12-17 2016-03-15 Western Digital (Fremont), Llc Magnetic writer having a dual side gap
US9349388B1 (en) * 2015-02-27 2016-05-24 Seagate Technology Llc Data writer front shield with varying throat height
JP2016219070A (ja) * 2015-05-14 2016-12-22 株式会社東芝 磁気記録ヘッド、およびこれを備えたディスク装置
US10734013B2 (en) 2017-10-03 2020-08-04 Western Digital Technologies, Inc. Spin transfer torque (STT) device with multilayer seed layers for magnetic recording and memory
US10997993B1 (en) 2019-03-22 2021-05-04 Western Digital Technologies, Inc. Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head
US11651783B1 (en) * 2022-02-22 2023-05-16 Western Digital Technologies, Inc. Two layer leading shield design with non-conformal shapes for magnetic recording heads

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Also Published As

Publication number Publication date
EP1522991A1 (fr) 2005-04-13
US7002775B2 (en) 2006-02-21
KR20050031937A (ko) 2005-04-06
US20050068678A1 (en) 2005-03-31
CN1308920C (zh) 2007-04-04
CN1604194A (zh) 2005-04-06

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