KR101632310B1 - 변화하는 베벨 각들을 갖는 기록 폴 - Google Patents

변화하는 베벨 각들을 갖는 기록 폴 Download PDF

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Publication number
KR101632310B1
KR101632310B1 KR1020140137689A KR20140137689A KR101632310B1 KR 101632310 B1 KR101632310 B1 KR 101632310B1 KR 1020140137689 A KR1020140137689 A KR 1020140137689A KR 20140137689 A KR20140137689 A KR 20140137689A KR 101632310 B1 KR101632310 B1 KR 101632310B1
Authority
KR
South Korea
Prior art keywords
bevel
abs
pole core
layer
recording pole
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.)
Expired - Fee Related
Application number
KR1020140137689A
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English (en)
Korean (ko)
Other versions
KR20150042742A (ko
Inventor
후아큉 인
웨이 티안
체 쉔
키릴 리브킨
지안후아 수에
Original Assignee
시게이트 테크놀로지 엘엘씨
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Application filed by 시게이트 테크놀로지 엘엘씨 filed Critical 시게이트 테크놀로지 엘엘씨
Publication of KR20150042742A publication Critical patent/KR20150042742A/ko
Application granted granted Critical
Publication of KR101632310B1 publication Critical patent/KR101632310B1/ko
Expired - Fee Related 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
    • G11B5/127—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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/3116—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
KR1020140137689A 2013-10-11 2014-10-13 변화하는 베벨 각들을 갖는 기록 폴 Expired - Fee Related KR101632310B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/052,300 2013-10-11
US14/052,300 US9019659B1 (en) 2013-10-11 2013-10-11 Write pole with varying bevel angles

Publications (2)

Publication Number Publication Date
KR20150042742A KR20150042742A (ko) 2015-04-21
KR101632310B1 true KR101632310B1 (ko) 2016-06-21

Family

ID=52809451

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140137689A Expired - Fee Related KR101632310B1 (ko) 2013-10-11 2014-10-13 변화하는 베벨 각들을 갖는 기록 폴

Country Status (4)

Country Link
US (1) US9019659B1 (enExample)
JP (1) JP2015076119A (enExample)
KR (1) KR101632310B1 (enExample)
CN (1) CN104575524B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10204644B1 (en) 2016-05-23 2019-02-12 Seagate Technology Llc Magnetic write transducer with flat pole section
US10026422B1 (en) * 2016-05-31 2018-07-17 Seagate Technology Llc Write pole with low wall angle
US10388307B1 (en) 2017-04-20 2019-08-20 Seagate Technology Llc Magnetic write transducer with first and second pole sections
US10672423B2 (en) 2018-04-10 2020-06-02 Seagate Technology Llc Electronic test structures for one or more magnetoresistive elements, and related methods
US20210027808A1 (en) * 2019-07-23 2021-01-28 Western Digital Technologies, Inc. Heat-assisted magnetic recording (hamr) head with tapered main pole and heat sink material adjacent the pole
US11087783B1 (en) * 2020-06-30 2021-08-10 Western Digital Technologies, Inc. Magnetic recording head soft error rate improvement with compact main pole

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268843A1 (en) * 2011-04-25 2012-10-25 Seagate Technology Llc Shaped Magnetic Write Pole

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710973B2 (en) 2000-09-18 2004-03-23 Hitachi, Ltd. Single pole type recording head including tapered edges
US20050219743A1 (en) 2004-04-06 2005-10-06 Headway Technologies, Inc. Perpendicular write head with tapered main pole
JP2006004591A (ja) * 2004-05-20 2006-01-05 Alps Electric Co Ltd 垂直磁気記録ヘッド
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
US20090262464A1 (en) * 2008-04-21 2009-10-22 Hardayal Singh Gill Perpendicular magnetic write head having a wrap around shield constructed of a low permeability material for reduced adjacent track erasure
US8625234B2 (en) 2008-04-29 2014-01-07 Headway Technologies, Inc. Graded bevel tapered write pole design for field enhancement
US8264792B2 (en) 2009-05-04 2012-09-11 Headway Technologies, Inc. PMR writer device with multi-level tapered write pole
US8381392B2 (en) 2010-05-11 2013-02-26 Seagate Technology Llc Method for manufacturing a self-aligned bevel for a write pole
US8477452B2 (en) 2010-12-09 2013-07-02 Headway Technologies, Inc. Magnetic head for perpendicular magnetic recording having a tapered main pole
US8233233B1 (en) * 2011-06-30 2012-07-31 Seagate Technology Llc Devices including a write pole tip with a convex shape
US8345384B1 (en) * 2011-12-02 2013-01-01 Headway Technologies, Inc. Magnetic head for perpendicular magnetic recording having a main pole and a shield
US8687318B2 (en) * 2012-03-13 2014-04-01 Seagate Technology Llc Recording head coil structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120268843A1 (en) * 2011-04-25 2012-10-25 Seagate Technology Llc Shaped Magnetic Write Pole

Also Published As

Publication number Publication date
JP2015076119A (ja) 2015-04-20
US20150103439A1 (en) 2015-04-16
CN104575524A (zh) 2015-04-29
KR20150042742A (ko) 2015-04-21
US9019659B1 (en) 2015-04-28
CN104575524B (zh) 2019-07-16

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