CN102324238B - 具有定形的能量辐射端的近场传感器 - Google Patents
具有定形的能量辐射端的近场传感器 Download PDFInfo
- Publication number
- CN102324238B CN102324238B CN201110195276.6A CN201110195276A CN102324238B CN 102324238 B CN102324238 B CN 102324238B CN 201110195276 A CN201110195276 A CN 201110195276A CN 102324238 B CN102324238 B CN 102324238B
- Authority
- CN
- China
- Prior art keywords
- utmost point
- energy
- waveguide
- recording medium
- near field
- 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.)
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
- 239000010931 gold Substances 0.000 claims description 6
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
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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
- G11B5/314—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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6088—Optical waveguide in or on flying head
-
- 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)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
- Optical Head (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/785,003 US8385159B2 (en) | 2010-05-21 | 2010-05-21 | Near field transducer with shaped energy radiating end |
| US12/785,003 | 2010-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102324238A CN102324238A (zh) | 2012-01-18 |
| CN102324238B true CN102324238B (zh) | 2014-07-16 |
Family
ID=44117870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110195276.6A Active CN102324238B (zh) | 2010-05-21 | 2011-05-20 | 具有定形的能量辐射端的近场传感器 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8385159B2 (enExample) |
| EP (1) | EP2388781B1 (enExample) |
| JP (1) | JP5702224B2 (enExample) |
| CN (1) | CN102324238B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210325241A1 (en) * | 2020-04-17 | 2021-10-21 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | High temperature near-field probe for sensing and energy harvesting applications based upon thermal emission |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9495996B2 (en) * | 2007-06-29 | 2016-11-15 | Seagate Technology, Llc | Writer with increased write field |
| US8248891B2 (en) * | 2008-11-18 | 2012-08-21 | Seagate Technology Llc | Near-field transducers for focusing light |
| US8416530B2 (en) * | 2009-10-20 | 2013-04-09 | Seagate Technology Llc | Write head with bevel structure and reverse NFT for HAMR |
| US8427925B2 (en) | 2010-02-23 | 2013-04-23 | Seagate Technology Llc | HAMR NFT materials with improved thermal stability |
| US9224416B2 (en) | 2012-04-24 | 2015-12-29 | Seagate Technology Llc | Near field transducers including nitride materials |
| US9251837B2 (en) | 2012-04-25 | 2016-02-02 | Seagate Technology Llc | HAMR NFT materials with improved thermal stability |
| US8649245B2 (en) * | 2010-03-29 | 2014-02-11 | Seagate Technology Llc | Direct waveguide light delivery to NFT for heat assisted magnetic recording |
| KR20110110941A (ko) * | 2010-04-02 | 2011-10-10 | 삼성전자주식회사 | 하드디스크 드라이브 |
| US8773959B2 (en) | 2010-05-21 | 2014-07-08 | Seagate Technology Llc | Near field transducer with shaped energy radiating end |
| US8351307B1 (en) | 2010-06-04 | 2013-01-08 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer having non-rectangular pin cross section |
| US8320219B1 (en) * | 2010-06-15 | 2012-11-27 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer |
| US8773956B1 (en) * | 2011-12-06 | 2014-07-08 | Western Digital (Fremont), Llc | Bi-layer NFT-core spacer for EAMR system and method of making the same |
| US8576672B1 (en) | 2012-05-25 | 2013-11-05 | Seagate Technology Llc | Heat sink layer |
| US8945731B2 (en) * | 2012-06-29 | 2015-02-03 | Seagate Technology Llc | Interlayer for device including NFT and cladding layers |
| US9385089B2 (en) | 2013-01-30 | 2016-07-05 | Seagate Technology Llc | Alignment mark recovery with reduced topography |
| US9343089B2 (en) * | 2013-03-08 | 2016-05-17 | Seagate Technology Llc | Nanoimprint lithography for thin film heads |
| US9135942B2 (en) | 2013-05-28 | 2015-09-15 | HGST Netherlands B.V. | Heat assisted magnetic recording head having wider heat sink and pole |
| US8810947B1 (en) | 2013-05-30 | 2014-08-19 | HGST Netherlands B.V. | Recessing a near field transducer in a heat-assisted magnetic recording head |
| US9245573B2 (en) | 2013-06-24 | 2016-01-26 | Seagate Technology Llc | Methods of forming materials for at least a portion of a NFT and NFTs formed using the same |
| US9502070B2 (en) | 2013-06-24 | 2016-11-22 | Seagate Technology Llc | Materials for near field transducers, near field tranducers containing same, and methods of forming |
| US8976634B2 (en) * | 2013-06-24 | 2015-03-10 | Seagate Technology Llc | Devices including at least one intermixing layer |
| US9129626B2 (en) | 2013-10-24 | 2015-09-08 | Seagate Technology Llc | Near-field transducer with rounded or obtuse corners |
| US20150132503A1 (en) * | 2013-11-13 | 2015-05-14 | Seagate Technology Llc | Methods of forming near field transducers |
| US9697856B2 (en) | 2013-12-06 | 2017-07-04 | Seagate Techology LLC | Methods of forming near field transducers and near field transducers formed thereby |
| US9570098B2 (en) | 2013-12-06 | 2017-02-14 | Seagate Technology 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 |
| JP6455875B2 (ja) * | 2014-09-30 | 2019-01-23 | 株式会社イノバステラ | 近接場光デバイス及びそれを用いた磁気ヘッド |
| US9449626B2 (en) * | 2014-11-07 | 2016-09-20 | Seagate Technology Llc | Structure positioned between magnetic pole and near-field transducer |
| 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 |
| US9123374B1 (en) | 2015-02-12 | 2015-09-01 | Western Digital (Fremont), Llc | Heat assisted magnetic recording writer having an integrated polarization rotation plate |
| US10204646B2 (en) | 2016-05-04 | 2019-02-12 | Western Digital Technologies, Inc. | Near-field transducer with adjacent high-refractive index material layer |
| US11164600B1 (en) | 2016-08-26 | 2021-11-02 | Seagate Technology Llc | Methods of forming materials |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436409A (zh) * | 2007-11-05 | 2009-05-20 | 希捷科技有限公司 | 热辅助磁记录的集成装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7412143B2 (en) | 2002-06-28 | 2008-08-12 | Seagate Technology Llc | Heat assisted magnetic recording with heat profile shaping |
| US6795630B2 (en) | 2002-06-28 | 2004-09-21 | Seagate Technology Llc | Apparatus and method for producing a small spot of optical energy |
| US7266268B2 (en) * | 2003-09-05 | 2007-09-04 | Seagate Technology Llc | Diffraction grating |
| US7155732B2 (en) * | 2003-09-05 | 2006-12-26 | Seagate Technology Llc | Heat assisted magnetic recording head and method |
| US7330404B2 (en) * | 2003-10-10 | 2008-02-12 | Seagate Technology Llc | Near-field optical transducers for thermal assisted magnetic and optical data storage |
| US7272079B2 (en) | 2004-06-23 | 2007-09-18 | Seagate Technology Llc | Transducer for heat assisted magnetic recording |
| JP4400579B2 (ja) * | 2006-01-30 | 2010-01-20 | Ｔｄｋ株式会社 | 台形端を有する近接場光発生部を備えた薄膜磁気ヘッド |
| JP2008059645A (ja) * | 2006-08-30 | 2008-03-13 | Hitachi Ltd | 記録用ヘッド |
| JP2008165922A (ja) * | 2006-12-28 | 2008-07-17 | Tdk Corp | 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ及びハードディスク装置 |
| US7440660B1 (en) * | 2007-10-16 | 2008-10-21 | Seagate Technology Llc | Transducer for heat assisted magnetic recording |
| JP4518158B2 (ja) * | 2008-02-08 | 2010-08-04 | Ｔｄｋ株式会社 | 熱アシスト磁気ヘッド、ヘッドジンバルアセンブリ、及びハードディスク装置 |
| US8000178B2 (en) * | 2008-10-29 | 2011-08-16 | Tdk Corporation | Near-field light generating element utilizing surface plasmon |
| US8248891B2 (en) * | 2008-11-18 | 2012-08-21 | Seagate Technology Llc | Near-field transducers for focusing light |
| US8111485B2 (en) * | 2008-11-19 | 2012-02-07 | Seagate Technology Llc | Arm mounted shock sensor and flexible circuit routing |
| US8416530B2 (en) * | 2009-10-20 | 2013-04-09 | Seagate Technology Llc | Write head with bevel structure and reverse NFT for HAMR |
| US8649245B2 (en) * | 2010-03-29 | 2014-02-11 | Seagate Technology Llc | Direct waveguide light delivery to NFT for heat assisted magnetic recording |
-
2010
- 2010-05-21 US US12/785,003 patent/US8385159B2/en not_active Expired - Fee Related
-
2011
- 2011-05-20 EP EP11167004.8A patent/EP2388781B1/en not_active Not-in-force
- 2011-05-20 JP JP2011113281A patent/JP5702224B2/ja not_active Expired - Fee Related
- 2011-05-20 CN CN201110195276.6A patent/CN102324238B/zh active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436409A (zh) * | 2007-11-05 | 2009-05-20 | 希捷科技有限公司 | 热辅助磁记录的集成装置 |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2007-200505A 2007.08.09 |
| JP特开2008-123689A 2008.05.29 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210325241A1 (en) * | 2020-04-17 | 2021-10-21 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | High temperature near-field probe for sensing and energy harvesting applications based upon thermal emission |
| US12013285B2 (en) * | 2020-04-17 | 2024-06-18 | University of Pittsburgh—of the Commonwealth System of Higher Education | High temperature near-field probe for sensing and energy harvesting applications based upon thermal emission |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2388781B1 (en) | 2015-01-28 |
| EP2388781A1 (en) | 2011-11-23 |
| US20110286127A1 (en) | 2011-11-24 |
| JP2011248991A (ja) | 2011-12-08 |
| JP5702224B2 (ja) | 2015-04-15 |
| CN102324238A (zh) | 2012-01-18 |
| US8385159B2 (en) | 2013-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |