JP2014022034A - 近接場アンテナと複合極を備えた記録ヘッド - Google Patents
近接場アンテナと複合極を備えた記録ヘッド Download PDFInfo
- Publication number
- JP2014022034A JP2014022034A JP2013146623A JP2013146623A JP2014022034A JP 2014022034 A JP2014022034 A JP 2014022034A JP 2013146623 A JP2013146623 A JP 2013146623A JP 2013146623 A JP2013146623 A JP 2013146623A JP 2014022034 A JP2014022034 A JP 2014022034A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- antenna
- magnetic
- pole
- along
- 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
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
- G11B5/17—Construction or disposition of windings
-
- 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
-
- 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
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
Abstract
【解決手段】近接場変換器アンテナは、書込み媒体表面に近い第1端部と、アンテナに光を配送する導波路に近い第2端部とを有している。アンテナは、第1端部から第2端部まで延在する伝播軸に沿って配置された開口部を含んでいる。開口部内には、段部が突出している。段部は、伝播軸に沿って延在する開口部の開口に面している。磁極はアンテナに近く、磁性材料の第1部分とアンテナ材料の第2部分とを含んでいる。第2部分は開口部の開口を覆っており、アンテナの段部に面している。
【選択図】図1
Description
Claims (20)
- 近接場変換器アンテナを含む装置であって、このアンテナは書込み媒体表面に近い第1端部とそのアンテナへ光を配送する導波路に近い第2端部を有し、前記アンテナは、
前記第1端部から前記第2端部へ延在する伝播軸に沿って配置された開口部と、
前記開口部内に突出する段部とを含み、前記段部は前記伝播軸に沿って延在する開口部の開口に面しており、
前記アンテナに近い磁極をも含み、この磁極は磁性材料の第1部分とアンテナ材料の第2部分を含み、この第2部分は前記開口部の開口を覆って配置されていて前記アンテナの段部に面している、装置。 - 前記磁極の前記第1部分と前記第2部分の断面領域は、前記伝播軸に沿って互いに相対的に変化している、請求項1に記載の装置。
- 前記磁極の前記第1部分は前記書込み媒体表面に近い断面において前記開口部の前記開口に近い先端部を含み、前記第2部分は前記書込み媒体表面から離れた断面において前記開口部の前記開口と前記第1部分との間に配置されている、請求項2に記載の装置。
- 前記磁極の前記第1部分と前記第2部分は、前記伝播軸に沿って互いに相対的に直線的に変化している、請求項2に記載の装置。
- 前記磁極の前記第2部分は、前記伝播軸に沿って少なくとも部分的に配置されたアンテナ材料のプラグを含んでいる、請求項1に記載の装置。
- 前記プラグは前記開口部の前記開口の一部を覆っており、前記磁性材料の第1部分は前記開口部の前記開口の残部を覆っている、請求項5に記載の装置。
- 前記磁極と前記アンテナとの間に誘電体の層をさらに含む、請求項5に記載の装置。
- 前記磁極と前記アンテナとの間に誘電体の層をさらに含む、請求項1に記載の装置。
- 前記誘電体は前記アンテナの前記開口部を満たしている、請求項8に記載の装置。
- 前記磁極の前記第2部分の前記アンテナ材料は非磁性材料を含む、請求項1に記載の装置。
- 空気ベアリング面に近接する端部を有する導波路と、
この導波路の焦点に近接して配置された近接場変換器とを含み、この近接場変換器は前記空気ベアリング面に平行な断面に沿ってE型断面形状を含み、前記近接場変換器の伝播の方向は前記空気ベアリング面に直交しており、
前記伝播の方向に沿った近接場変換器の一方側に磁気的に近い書込み極をも含み、前記書込み極は非磁性部分と磁性部分を含み、前記非磁性部分は前記伝播方向の少なくとも一部に沿って前記近接場変換器の前記E型断面形状の少なくとも一部を覆っている、装置。 - 前記書込み極の前記磁性部分と前記非磁性部分の断面領域は、前記伝播の軸に沿って互いに相対的に変化している、請求項11に記載の装置。
- 前記書込み極の前記磁性部分は前記空気ベアリング面近くで前記近接場変換器近くにある先端部を含み、前記非磁性部分は前記空気ベアリング面から離れた断面において前記磁性部分と前記近接場変換器との間に配置されている、請求項12に記載の装置。
- 前記書込み極の前記磁性部分と前記非磁性部分は、前記伝播の方向に沿って互いに相対的に直線的に変化している、請求項12に記載の装置。
- 前記書込み極の前記非磁性部分は、前記伝播の方向に沿って少なくとも部分的に配置されたアンテナ材料のプラグを含む、請求項11に記載の装置。
- 前記プラグはE型断面形状の開口の一部を覆っており、前記磁性材料は前記開口の残部を覆っている、請求項15に記載の装置。
- 前記書込み極と前記近接場アンテナとの間に誘電体の層をさらに含む、請求項15に記載の装置。
- 前記書込み極と前記近接場アンテナとの間に誘電体の層をさらに含む、請求項11に記載の装置。
- 前記誘電体は前記近接場変換器の開口部を満たしている、請求項18に記載の装置。
- 光エネルギによって励起される局所的表面プラズモン条件に応答して書込み媒体表面に焦点合わせされた電界を生じる手段を含み、前記焦点合わせされた電界を生じる手段は前記書込み媒体表面から第2の端部へ延在する伝播軸に沿って配置された開口部と前記開口部内で突出している段部とを含み、前記段部は前記伝播軸に沿って延在する開口部の開口に面しており、
磁性材料の第1部分とアンテナ材料の第2部分を含んでいて可変の磁界を生じる手段をも含み、前記第2部分は前記開口部の開口を覆って配置されて前記段部に面している、装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/550,280 US8619513B1 (en) | 2012-07-16 | 2012-07-16 | Recording head with near-field antenna and composite pole |
US13/550,280 | 2012-07-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2014022034A true JP2014022034A (ja) | 2014-02-03 |
JP2014022034A5 JP2014022034A5 (ja) | 2015-05-07 |
JP6026969B2 JP6026969B2 (ja) | 2016-11-16 |
Family
ID=48783106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013146623A Expired - Fee Related JP6026969B2 (ja) | 2012-07-16 | 2013-07-12 | 近接場アンテナと複合極を備えた記録ヘッド |
Country Status (6)
Country | Link |
---|---|
US (1) | US8619513B1 (ja) |
EP (1) | EP2688068A3 (ja) |
JP (1) | JP6026969B2 (ja) |
KR (1) | KR101442086B1 (ja) |
CN (1) | CN103544964B (ja) |
TW (1) | TWI521504B (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8908331B2 (en) * | 2013-01-22 | 2014-12-09 | Tdk Corporation | Thermally-assisted magnetic recording head including a waveguide, a magnetic pole, and a plasmon generator and method of manufacturing the same |
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 |
US9042209B2 (en) * | 2013-07-30 | 2015-05-26 | HGST Netherlands B.V. | E-antenna near field transducer with thermal shunt to return pole |
US9053722B1 (en) | 2014-07-23 | 2015-06-09 | HGST Netherlands B.V. | Split-ring resonator (SRR) NFT design for use in HAMR |
US9183856B1 (en) | 2014-10-31 | 2015-11-10 | HGST Netherlands B.V. | System and method for integration of magnetic lip and near field transducer in heat assisted magnetic recording write heads |
US9202479B1 (en) * | 2014-12-04 | 2015-12-01 | Seagate Technology Llc | Heat assisted magnetic recording head with write coil heatsink |
US20170061348A1 (en) * | 2015-08-31 | 2017-03-02 | Salesforce.com. inc. | Platform architecture planning process utilizing platform architecture type unit definitions |
US10728339B2 (en) * | 2016-07-10 | 2020-07-28 | Dhawal Tyagi | Method and system of localized sensor network management with inode instances |
US10339965B2 (en) | 2017-01-26 | 2019-07-02 | Tdk Corporation | Thermally assisted magnetic recording head having plasmon generator in which dielectric layer is surrounded by metal layer |
WO2020096950A1 (en) * | 2018-11-06 | 2020-05-14 | The Regents Of The University Of California | Heterogeneously integrated indium gallium nitride on silicon photonic integrated circuits |
US11574647B1 (en) | 2021-08-17 | 2023-02-07 | Western Digital Technologies, Inc. | HAMR head with near-field transducer (NFT) with trailing bevel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005116155A (ja) * | 2003-10-10 | 2005-04-28 | Seagate Technology Llc | 熱支援された磁気および光データ記憶のための近視野光トランスジューサ |
US20090290454A1 (en) * | 2008-05-22 | 2009-11-26 | Fontana Jr Robert E | Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recording |
US20100214685A1 (en) * | 2009-02-24 | 2010-08-26 | Seagate Technology Llc | Recording Head For Heat Assisted Magnetic Recording |
JP2012099206A (ja) * | 2010-11-02 | 2012-05-24 | Hitachi Global Storage Technologies Netherlands Bv | 近接場トランスデューサと磁性リップの間に拡散障壁層を有する近接場トランスデューサ(nft)を用いる熱アシスト磁気書き込みヘッド |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7336988B2 (en) | 2001-08-08 | 2008-02-26 | Lucent Technologies Inc. | Multi-photon endoscopy |
US6888984B2 (en) | 2002-02-28 | 2005-05-03 | Sarnoff Corporation | Amorphous silicon alloy based integrated spot-size converter |
US7027700B2 (en) | 2002-09-30 | 2006-04-11 | Seagate Technology Llc | Planar waveguide for heat assisted magnetic recording |
US7272079B2 (en) | 2004-06-23 | 2007-09-18 | Seagate Technology Llc | Transducer for heat assisted magnetic recording |
US7236332B2 (en) | 2004-10-22 | 2007-06-26 | Hitachi Global Storage Technologies Netherlands, B.V. | Thermally assisted recording of magnetic using an in-gap optical resonant cavity |
WO2008023552A1 (fr) | 2006-08-23 | 2008-02-28 | Konica Minolta Opto, Inc. | Élément optique et tête optique |
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 |
US8243557B2 (en) | 2006-12-26 | 2012-08-14 | Hitachi Global Storage Technologies Netherlands B.V. | Optimized ridge apertures for thermally assisted magnetic recording |
KR100846515B1 (ko) * | 2007-03-19 | 2008-07-17 | 삼성전자주식회사 | 테이퍼진 c-형 개구를 갖는 90도 굽어진 금속 도파로,상기 도파로의 제조 방법, 상기 도파로를 이용한 광전송모듈 및 상기 도파로를 채용한 열보조 자기기록 헤드 |
US7990647B2 (en) * | 2008-07-03 | 2011-08-02 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording head control means for protrusion management |
US8345518B2 (en) | 2008-07-18 | 2013-01-01 | The Regents Of The University Of California | Near field optical recording system having negative index of refraction structure |
JP5330757B2 (ja) * | 2008-08-06 | 2013-10-30 | エイチジーエスティーネザーランドビーブイ | 磁気記録方法及び磁気記録装置 |
US8031433B2 (en) | 2008-09-05 | 2011-10-04 | Headway Technologies, Inc. | Method to make an integrated side shield PMR head with non conformal side gap |
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 |
US7880996B2 (en) | 2008-12-31 | 2011-02-01 | Hitachi Global Storage Technologies Netherlands B.V. | Ridge wave-guide for thermal assisted magnetic recording |
US8391108B2 (en) | 2010-08-12 | 2013-03-05 | Seagate Technology Llc | Hybrid near-field transducer for heat assisted magnetic recording |
US8369192B1 (en) * | 2011-11-17 | 2013-02-05 | Tdk Corporation | Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device |
-
2012
- 2012-07-16 US US13/550,280 patent/US8619513B1/en active Active
-
2013
- 2013-07-12 TW TW102125065A patent/TWI521504B/zh not_active IP Right Cessation
- 2013-07-12 JP JP2013146623A patent/JP6026969B2/ja not_active Expired - Fee Related
- 2013-07-15 CN CN201310296034.5A patent/CN103544964B/zh active Active
- 2013-07-15 KR KR1020130082867A patent/KR101442086B1/ko active IP Right Grant
- 2013-07-15 EP EP20130176541 patent/EP2688068A3/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005116155A (ja) * | 2003-10-10 | 2005-04-28 | Seagate Technology Llc | 熱支援された磁気および光データ記憶のための近視野光トランスジューサ |
US20090290454A1 (en) * | 2008-05-22 | 2009-11-26 | Fontana Jr Robert E | Thermally assisted recording head with magnetic pole integrated into optical aperture for dual gradient recording |
US20100214685A1 (en) * | 2009-02-24 | 2010-08-26 | Seagate Technology Llc | Recording Head For Heat Assisted Magnetic Recording |
JP2012099206A (ja) * | 2010-11-02 | 2012-05-24 | Hitachi Global Storage Technologies Netherlands Bv | 近接場トランスデューサと磁性リップの間に拡散障壁層を有する近接場トランスデューサ(nft)を用いる熱アシスト磁気書き込みヘッド |
Also Published As
Publication number | Publication date |
---|---|
TWI521504B (zh) | 2016-02-11 |
CN103544964A (zh) | 2014-01-29 |
KR20140010342A (ko) | 2014-01-24 |
JP6026969B2 (ja) | 2016-11-16 |
US8619513B1 (en) | 2013-12-31 |
EP2688068A2 (en) | 2014-01-22 |
TW201419275A (zh) | 2014-05-16 |
US20140016448A1 (en) | 2014-01-16 |
EP2688068A3 (en) | 2014-05-21 |
KR101442086B1 (ko) | 2014-09-18 |
CN103544964B (zh) | 2017-04-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6026969B2 (ja) | 近接場アンテナと複合極を備えた記録ヘッド | |
US9355661B2 (en) | Integrated head for heat assisted magnetic recording | |
US7961417B2 (en) | Heat assisted magnetic recording apparatus having a plurality of near-field transducers in a recording media | |
JP5714377B2 (ja) | 磁気記録ヘッド | |
US8248891B2 (en) | Near-field transducers for focusing light | |
JP4745163B2 (ja) | デュアル・ワイヤ一体型wamr/hamr書込みヘッド | |
US9147414B2 (en) | Recording head for heat assisted magnetic recording | |
US8270791B2 (en) | Optical waveguide and thermally-assisted magnetic recording head therewith | |
JP5029724B2 (ja) | 傾斜した端面を有する導波路を備えた近接場光発生素子 | |
US8391108B2 (en) | Hybrid near-field transducer for heat assisted magnetic recording | |
US7649677B2 (en) | Multi-ridged subwavelength aperture for optical transmission and thermally assisted magnetic recording | |
JP2010160872A (ja) | 表面プラズモン・アンテナと溝を有する導波路とを備えた近接場光発生素子 | |
JP2016515749A (ja) | 近接場トランスデューサ−書込磁極間隔を制御するための装置および方法 | |
US8400885B2 (en) | Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device | |
US9025422B2 (en) | Plasmon generator having flare shaped section | |
JP2006202461A (ja) | 回折格子 | |
US8339906B2 (en) | Transducer assembly for heat assisted magnetic recording light delivery | |
US8817581B1 (en) | Thermally-assisted magnetic recording head using near-field light | |
US8570843B2 (en) | Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element | |
US10468058B1 (en) | Magnetic write head with a tapered return pole | |
US8537645B1 (en) | Near field light generating element, thermally assisted magnetic head, thermally assisted magnetic head device and thermally assisted magnetic recording/reproducing apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150318 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150318 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160127 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160209 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160427 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160913 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20161013 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6026969 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |