CN101777353A - 具有光学波导和近场换能器的热辅助记录头 - Google Patents
具有光学波导和近场换能器的热辅助记录头 Download PDFInfo
- Publication number
- CN101777353A CN101777353A CN200910261888A CN200910261888A CN101777353A CN 101777353 A CN101777353 A CN 101777353A CN 200910261888 A CN200910261888 A CN 200910261888A CN 200910261888 A CN200910261888 A CN 200910261888A CN 101777353 A CN101777353 A CN 101777353A
- Authority
- CN
- China
- Prior art keywords
- near field
- field transducer
- main body
- ridge
- layer
- 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.)
- Granted
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Classifications
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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
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
-
- 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
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
Claims (23)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/347,194 US7880996B2 (en) | 2008-12-31 | 2008-12-31 | Ridge wave-guide for thermal assisted magnetic recording |
US12/347,194 | 2008-12-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101777353A true CN101777353A (zh) | 2010-07-14 |
CN101777353B CN101777353B (zh) | 2012-04-25 |
Family
ID=42284823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009102618883A Active CN101777353B (zh) | 2008-12-31 | 2009-12-31 | 具有光学波导和近场换能器的热辅助记录头 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7880996B2 (zh) |
CN (1) | CN101777353B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103544964A (zh) * | 2012-07-16 | 2014-01-29 | 希捷科技有限公司 | 具有近场天线和复合极的记录头 |
CN111048121A (zh) * | 2018-10-11 | 2020-04-21 | 西部数据技术公司 | 具有双返回杆的磁性写入头 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8092704B2 (en) | 2008-12-30 | 2012-01-10 | Hitachi Global Storage Technologies Netherlands B.V. | System, method and apparatus for fabricating a c-aperture or E-antenna plasmonic near field source for thermal assisted recording applications |
US8472286B2 (en) * | 2008-12-31 | 2013-06-25 | HGST Netherlands B.V. | Near field transducer having main body and wings extending therefrom and only electrically coupled thereby |
US8169881B2 (en) | 2008-12-31 | 2012-05-01 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording head having recessed waveguide with near field transducer and methods of making same |
JP2011118973A (ja) * | 2009-12-02 | 2011-06-16 | Hitachi Ltd | 熱アシスト磁気記録ヘッド |
US9053731B2 (en) | 2010-07-09 | 2015-06-09 | HGST Netherlands B.V. | Extended cavity VCSEL mounted to substrate with electrical and thermal contact to substrate and optical power directed toward substrate |
US8351151B2 (en) * | 2010-11-02 | 2013-01-08 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted magnetic write head employing a near field transducer (NFT) having a diffusion barrier layer between the near field transducer and a magnetic lip |
US8681590B2 (en) | 2010-11-24 | 2014-03-25 | Seagate Technology Llc | Apparatus for increasing data rates in a magnetic head |
US8755650B2 (en) | 2011-09-08 | 2014-06-17 | Seagate Technology Llc | Gradient index optical waveguide coupler |
US8498182B1 (en) | 2012-06-06 | 2013-07-30 | HGST Netherlands B.V. | Wrap-around antenna design for improved performance in thermally-assisted magnetic recording |
US9047908B2 (en) * | 2013-04-23 | 2015-06-02 | HGST Netherlands B.V. | Heat-assisted magnetic recording (HAMR) head with diffusion barrier between waveguide core and write pole lip |
US9135942B2 (en) | 2013-05-28 | 2015-09-15 | HGST Netherlands B.V. | Heat assisted magnetic recording head having wider heat sink and pole |
US8976489B2 (en) * | 2013-05-31 | 2015-03-10 | HGST Netherlands B.V. | Noble metal surrounded magnetic lip and heat sink for heat assisted magnetic recording head |
US9064514B2 (en) | 2013-06-28 | 2015-06-23 | Seagate Technology Llc | Trenched near-field transducer for heat assisted magnetic recording |
US8947985B1 (en) * | 2013-07-16 | 2015-02-03 | Western Digital (Fremont), Llc | Heat assisted magnetic recording transducers having a recessed pole |
US8923102B1 (en) | 2013-07-16 | 2014-12-30 | Western Digital (Fremont), Llc | Optical grating coupling for interferometric waveguides in heat assisted magnetic recording heads |
US9099111B2 (en) | 2013-12-18 | 2015-08-04 | HGST Netherlands B.V. | Heat assisted magnetic recording head employing noble metal alloy as diffusion barrier layer |
US9099112B1 (en) | 2014-01-31 | 2015-08-04 | HGST Netherlands B.V. | Near field transducer having notch diffusion barrier |
US9142233B1 (en) | 2014-02-28 | 2015-09-22 | Western Digital (Fremont), Llc | Heat assisted magnetic recording writer having a recessed pole |
US9275658B2 (en) | 2014-03-13 | 2016-03-01 | Headway Technologies, Inc. | Thermally-assisted magnetic recording head including a plasmon generator |
US9218827B1 (en) * | 2014-07-18 | 2015-12-22 | Headway Technologies, Inc. | Thermally-assisted magnetic recording head including a return path section |
US9218850B1 (en) * | 2014-12-23 | 2015-12-22 | WD Media, LLC | Exchange break layer for heat-assisted magnetic recording media |
US10242702B1 (en) | 2016-02-29 | 2019-03-26 | Seagate Technology Llc | Near-field transducer with stacked features that reduce emission of polarization-rotated light |
Family Cites Families (27)
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JP4109744B2 (ja) * | 1998-03-24 | 2008-07-02 | セイコーインスツル株式会社 | 近視野光ヘッド |
US7095767B1 (en) | 1999-08-30 | 2006-08-22 | Research Investment Network, Inc. | Near field optical apparatus |
JP2003042930A (ja) * | 2001-08-03 | 2003-02-13 | Pioneer Electronic Corp | 近接場光発生素子及びこれを具備してなる光学装置 |
US6982844B2 (en) * | 2001-12-18 | 2006-01-03 | International Business Machines Corporation | Optical aperture for data recording having transmission enhanced by surface plasmon resonance |
US7272102B2 (en) * | 2002-03-29 | 2007-09-18 | Seagate Technology Llc | Ridge waveguide with recess |
US6944101B2 (en) * | 2002-06-24 | 2005-09-13 | Seagate Technology Llc | Recording pole for delivering coincident heat and magnetic field |
JP3668779B2 (ja) * | 2002-07-25 | 2005-07-06 | 国立大学法人岐阜大学 | 光導波装置 |
US6999384B2 (en) * | 2002-09-27 | 2006-02-14 | Carnegie Mellon University | Device with waveguide defined by dielectric in aperture of cross-track portion of electrical conductor for writing data to a recording medium |
JP4004984B2 (ja) * | 2003-03-28 | 2007-11-07 | シャープ株式会社 | 電磁界発生素子、情報記録再生ヘッドおよび情報記録再生装置 |
US20050031278A1 (en) * | 2003-05-16 | 2005-02-10 | Xiaolei Shi | Near-field sub-wavelength apertures |
JP4399328B2 (ja) * | 2004-07-23 | 2010-01-13 | 富士ゼロックス株式会社 | 近接場光出射素子、光ヘッド、および近接場光出射素子の製造方法 |
JP4635607B2 (ja) | 2004-12-28 | 2011-02-23 | Tdk株式会社 | 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置 |
JP2006202449A (ja) | 2005-01-24 | 2006-08-03 | Canon Inc | 近接場光発生素子 |
US20060182393A1 (en) * | 2005-02-11 | 2006-08-17 | Seagate Technology Llc | System for confined optical power delivery and enhanced optical transmission efficiency |
JP2007086478A (ja) * | 2005-09-22 | 2007-04-05 | Canon Inc | 近接場光発生装置 |
US20070069429A1 (en) * | 2005-09-29 | 2007-03-29 | Albrecht Thomas R | System and method for patterning a master disk for nanoimprinting patterned magnetic recording disks |
KR100657971B1 (ko) * | 2005-10-06 | 2006-12-14 | 삼성전자주식회사 | 광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 |
JP4081485B2 (ja) * | 2005-11-01 | 2008-04-23 | 株式会社日立製作所 | 熱アシスト記録装置用ヘッド及び熱アシスト記録装置 |
US7649677B2 (en) * | 2006-04-04 | 2010-01-19 | Hitachi Global Storage Technologies Netherlands B.V. | Multi-ridged subwavelength aperture for optical transmission and thermally assisted magnetic recording |
JP4236673B2 (ja) * | 2006-04-12 | 2009-03-11 | 株式会社日立製作所 | 近接場光発生器及び近接場光記録再生装置 |
JP2008159158A (ja) * | 2006-12-22 | 2008-07-10 | Tdk Corp | 熱アシスト磁気ヘッド |
US8243557B2 (en) * | 2006-12-26 | 2012-08-14 | Hitachi Global Storage Technologies Netherlands B.V. | Optimized ridge apertures for thermally assisted magnetic recording |
US7759630B2 (en) * | 2006-12-26 | 2010-07-20 | Hitachi Global Storage Technologies Netherlands B.V. | Method and apparatus for the generation and control of multiple near-field light sources at subwavelength resolution |
US20090258186A1 (en) * | 2008-04-10 | 2009-10-15 | Hitachi Global Storage Technologies Netherlands B. V. | Wafer-level method for fabricating an optical channel and aperture structure in magnetic recording head sliders for use in thermally-assisted recording (tar) |
US7652954B2 (en) * | 2008-05-22 | 2010-01-26 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recording |
US8169881B2 (en) * | 2008-12-31 | 2012-05-01 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording head having recessed waveguide with near field transducer and methods of making same |
US8472286B2 (en) * | 2008-12-31 | 2013-06-25 | HGST Netherlands B.V. | Near field transducer having main body and wings extending therefrom and only electrically coupled thereby |
-
2008
- 2008-12-31 US US12/347,194 patent/US7880996B2/en active Active
-
2009
- 2009-12-31 CN CN2009102618883A patent/CN101777353B/zh active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103544964A (zh) * | 2012-07-16 | 2014-01-29 | 希捷科技有限公司 | 具有近场天线和复合极的记录头 |
CN103544964B (zh) * | 2012-07-16 | 2017-04-12 | 希捷科技有限公司 | 具有近场天线和复合极的记录头 |
CN111048121A (zh) * | 2018-10-11 | 2020-04-21 | 西部数据技术公司 | 具有双返回杆的磁性写入头 |
US11043233B2 (en) | 2018-10-11 | 2021-06-22 | Western Digital Technologies, Inc. | Magnetic write head with dual return pole and tapered main pole |
Also Published As
Publication number | Publication date |
---|---|
US20100165802A1 (en) | 2010-07-01 |
US7880996B2 (en) | 2011-02-01 |
CN101777353B (zh) | 2012-04-25 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HGST NETHERLANDS BV Free format text: FORMER NAME: HITACHI GLOBAL STORAGE TECH |
|
CP01 | Change in the name or title of a patent holder |
Address after: Amsterdam Patentee after: Hitachi Global Storage Technologies Netherlands B. V. Address before: Amsterdam Patentee before: Hitachi Global Storage Tech |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190116 Address after: American California Patentee after: Western Digital Technologies, Inc. Address before: Amsterdam Patentee before: Hitachi Global Storage Technologies Netherlands B. V. |