KR101349904B1 - 광학 근거리 변환기들을 위한 열 싱크들 - Google Patents

광학 근거리 변환기들을 위한 열 싱크들 Download PDF

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Publication number
KR101349904B1
KR101349904B1 KR1020110140363A KR20110140363A KR101349904B1 KR 101349904 B1 KR101349904 B1 KR 101349904B1 KR 1020110140363 A KR1020110140363 A KR 1020110140363A KR 20110140363 A KR20110140363 A KR 20110140363A KR 101349904 B1 KR101349904 B1 KR 101349904B1
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KR
South Korea
Prior art keywords
heat sink
heat
optical
near field
optical near
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Expired - Fee Related
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KR1020110140363A
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English (en)
Korean (ko)
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KR20120071366A (ko
Inventor
윌리엄 폴 바브라
수후이 진
시아오유에 후앙
마이클 크리스토퍼 카우츠키
카이종 가오
Original Assignee
시게이트 테크놀로지 엘엘씨
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Publication of KR20120071366A publication Critical patent/KR20120071366A/ko
Application granted granted Critical
Publication of KR101349904B1 publication Critical patent/KR101349904B1/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
    • G11B5/31—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
    • G11B5/314—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 where the layers are extra layers normally not provided in the transducing structure, e.g. optical 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
    • G11B5/127—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
    • 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
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
KR1020110140363A 2010-12-22 2011-12-22 광학 근거리 변환기들을 위한 열 싱크들 Expired - Fee Related KR101349904B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/976,559 2010-12-22
US12/976,559 US9431036B2 (en) 2010-12-22 2010-12-22 Heat-sinks for optical near-field transducers

Publications (2)

Publication Number Publication Date
KR20120071366A KR20120071366A (ko) 2012-07-02
KR101349904B1 true KR101349904B1 (ko) 2014-01-13

Family

ID=46316633

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110140363A Expired - Fee Related KR101349904B1 (ko) 2010-12-22 2011-12-22 광학 근거리 변환기들을 위한 열 싱크들

Country Status (4)

Country Link
US (1) US9431036B2 (enExample)
JP (1) JP5759884B2 (enExample)
KR (1) KR101349904B1 (enExample)
CN (1) CN102592608B (enExample)

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US8427925B2 (en) 2010-02-23 2013-04-23 Seagate Technology Llc HAMR NFT materials with improved thermal stability
US9053737B2 (en) 2010-12-22 2015-06-09 Seagate Technology Llc Heat assisted magnetic recording devices
US8259540B1 (en) * 2012-01-16 2012-09-04 Seagate Technology Llc Heat assisted magnetic recording (HAMR) heads including components made of nickel alloys
US9129625B2 (en) 2012-01-16 2015-09-08 Seagate Technology Llc Perpendicular magnetic recording heads including components made of nickel alloys
US8526275B1 (en) * 2012-04-27 2013-09-03 Westerni Digital (Fremont), LLC Systems and methods for dissipating heat from a near-field transducer in an energy assisted magnetic recording assembly
US8619516B1 (en) * 2012-08-10 2013-12-31 HGST Netherlands B.V. Thermally-assisted recording (TAR) head with conductive layer between the near-field transducer and the write pole
US9070386B2 (en) 2012-12-04 2015-06-30 Seagate Technology Llc Polarization rotator
US9378757B2 (en) 2013-03-07 2016-06-28 Seagate Technology Llc Methods of making a near field transducer with a flare peg
US9304253B2 (en) * 2013-03-07 2016-04-05 Seagate Technology Llc Near-field transducer with flare peg
US8891205B2 (en) 2013-04-16 2014-11-18 Seagate Technology Llc Apparatuses and methods for controlling near-field transducer to write pole spacing
US9286931B2 (en) 2013-06-24 2016-03-15 Seagate Technology Llc Materials for near field transducers and near field transducers containing same
JP2015011728A (ja) * 2013-06-26 2015-01-19 株式会社東芝 磁気ヘッド、磁気ディスク装置、及び磁気ヘッドの制御方法
US9042209B2 (en) 2013-07-30 2015-05-26 HGST Netherlands B.V. E-antenna near field transducer with thermal shunt to return pole
US8923100B1 (en) * 2013-09-11 2014-12-30 Seagate Technology Llc Multi-portion heat sink for use with write pole and near-field transducer
US9570098B2 (en) 2013-12-06 2017-02-14 Seagate Technology Llc Methods of forming near field transducers and near field transducers formed thereby
US9697856B2 (en) * 2013-12-06 2017-07-04 Seagate Techology LLC Methods of forming near field transducers and near field transducers formed thereby
US8988827B1 (en) 2014-01-17 2015-03-24 HGST Netherlands B.V. Surface diffusion inhibitor for HAMR NFT
US9099112B1 (en) 2014-01-31 2015-08-04 HGST Netherlands B.V. Near field transducer having notch diffusion barrier
US9218835B1 (en) * 2014-09-02 2015-12-22 Headway Technologies, Inc. Thermally-assisted magnetic recording head including a heat sink
US9147427B1 (en) 2014-10-31 2015-09-29 Seagate Technology Llc Near-field transducer with multiple heat sinks
US9822444B2 (en) 2014-11-11 2017-11-21 Seagate Technology Llc Near-field transducer having secondary atom higher concentration at bottom of the peg
WO2016077197A1 (en) 2014-11-12 2016-05-19 Seagate Technology Llc Devices including a near field transducer (nft) with nanoparticles
WO2016191414A1 (en) * 2015-05-27 2016-12-01 Seagate Technology Llc Thermally robust near-field transducer peg
US11328747B1 (en) 2020-12-08 2022-05-10 Western Digital Technologies, Inc. Heat-assisted magnetic recording (HAMR) head with heat sink material adjacent the waveguide
US11250879B1 (en) 2021-02-17 2022-02-15 Western Digital Technologies, Inc. Heat-assisted magnetic recording (HAMR) head with optically reflective shield material adjacent the waveguide
US12451666B2 (en) 2022-03-30 2025-10-21 Seagate Technology Llc Laser heat sinking for integrating laser diode into recording heads at wafer level
US12367896B1 (en) 2024-07-12 2025-07-22 Seagate Technology Llc Magnetic recording head writer having an auxiliary magnetomotive force coil

Citations (2)

* Cited by examiner, † Cited by third party
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US20050024957A1 (en) * 2003-07-30 2005-02-03 Savas Gider Magnetic hard disk recording head with self-compensating thermal expansion
US20100214685A1 (en) * 2009-02-24 2010-08-26 Seagate Technology Llc Recording Head For Heat Assisted Magnetic Recording

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JP3132003B2 (ja) 1993-09-27 2001-02-05 セイコーエプソン株式会社 光ヘッド
JP2990038B2 (ja) 1995-03-30 1999-12-13 日本電気株式会社 光ヘッド
JP2003051144A (ja) 2001-08-03 2003-02-21 Fujitsu Ltd 磁気ヘッド
JP4226976B2 (ja) * 2003-08-29 2009-02-18 Ｔｄｋ株式会社 薄膜磁気ヘッドおよび磁気記録装置
US8339905B2 (en) 2005-04-13 2012-12-25 Seagate Technology Llc Alignment features for heat assisted magnetic recording transducers
US7626894B2 (en) 2005-04-13 2009-12-01 Seagate Technology Llc Heat assisted magnetic recording light delivery with fixed laser and rotating mirror
US7869309B2 (en) 2005-08-11 2011-01-11 Seagate Technology Llc Dual wire integrated WAMR/HAMR writing head
US7609480B2 (en) 2006-06-30 2009-10-27 Seagate Technology Llc Heat-assisted magnetic recording head
JP5134310B2 (ja) 2007-08-31 2013-01-30 エイチジーエスティーネザーランドビーブイ 磁気ヘッドスライダ
US8194511B2 (en) * 2010-03-19 2012-06-05 Headway Technologies, Inc. Heat-assisted magnetic recording head with near-field light generating element
US8391108B2 (en) * 2010-08-12 2013-03-05 Seagate Technology Llc Hybrid near-field transducer for heat assisted magnetic recording
US8514672B2 (en) * 2010-08-24 2013-08-20 HGST Netherlands B.V. Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive
US8339739B2 (en) 2010-08-31 2012-12-25 Hitachi Global Storage Technologies Netherlands B.V. Thermally assisted recording head with near field transducer having integral heatsink

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050024957A1 (en) * 2003-07-30 2005-02-03 Savas Gider Magnetic hard disk recording head with self-compensating thermal expansion
US20100214685A1 (en) * 2009-02-24 2010-08-26 Seagate Technology Llc Recording Head For Heat Assisted Magnetic Recording

Also Published As

Publication number Publication date
US9431036B2 (en) 2016-08-30
US20120163139A1 (en) 2012-06-28
CN102592608A (zh) 2012-07-18
KR20120071366A (ko) 2012-07-02
JP5759884B2 (ja) 2015-08-05
CN102592608B (zh) 2016-01-20
JP2012133873A (ja) 2012-07-12

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