JP5150403B2 - 熱アシスト磁気記録ヘッド - Google Patents
熱アシスト磁気記録ヘッド Download PDFInfo
- Publication number
- JP5150403B2 JP5150403B2 JP2008202545A JP2008202545A JP5150403B2 JP 5150403 B2 JP5150403 B2 JP 5150403B2 JP 2008202545 A JP2008202545 A JP 2008202545A JP 2008202545 A JP2008202545 A JP 2008202545A JP 5150403 B2 JP5150403 B2 JP 5150403B2
- Authority
- JP
- Japan
- Prior art keywords
- slider
- optical waveguide
- substrate
- light
- semiconductor laser
- 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
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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
-
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
-
- 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
-
- 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)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
また、良好な放熱を確保できないと、半導体レーザの寿命が低下する以外に、動作によりスライダに反りが発生するという問題がある。この反りの程度が大きくなると浮上特性が悪化する。
本実施例では、第一の光導波路1の途中に1/2波長板56を挿入した構造となっている。1/2波長板56は、第一の光導波路1に溝を掘り、そこに挿入し接着固定することによって固定されている。この1/2波長板の存在により、半導体レーザ100から出射した光の偏光方向を回転させることができる。例えば、半導体レーザ100からの光の偏光方向が基板2の表面に対して平行である場合、1/2波長板56の基板2の表面に対する偏角を45°とすることで、光の偏光方向を基板2の表面に対して垂直方向に変換することができる。このような措置を施すことにより、どのような偏光方向の光源を用いても近接場プローブに対して最適な偏光方向に光を照射することができ、高性能な熱アシスト磁気記録ヘッドを提供することができる。なお、1/2波長板の固定方法は、上記以外の方法でも構わない。また、その設置位置も第一の光導波路の光の入射端部、あるいは出射端部にあっても構わない。また、1/2波長板以外の光学機能素子であっても構わない。さらに、本実施例は実施例1の構造を用いているが、実施例2や実施例3の構造も用いても当然構わない。
Claims (1)
- 基板と、
前記基板上に設けられ、レーザ光を発生させる半導体レーザ素子と、
前記レーザ光を受けて近接場光を発する近接場発生素子、記録を行う磁気ヘッド及び浮上面を有するスライダとを備えた熱アシスト磁気ヘッドにおいて、
前記半導体レーザ素子を出射したレーザ光が伝播する第一の光導波路が前記基板上に設けられ、
前記スライダは、前記第一の光導波路上に設けられるとともに、その端面に第一の光導波路を伝播した前記レーザ光を当該スライダの厚さ方向に伝搬させて前記近接場発生素子に導く第二の光導波路を有し、
前記第一の光導波路は、前記半導体レーザ素子から発生されたレーザ光を反射させることにより伝播させ、前記第1の光導路の途中に1/2波長板があることを特徴とする熱アシスト磁気記録ヘッド。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008202545A JP5150403B2 (ja) | 2008-08-06 | 2008-08-06 | 熱アシスト磁気記録ヘッド |
PCT/JP2009/060500 WO2010016329A1 (ja) | 2008-08-06 | 2009-06-09 | 熱アシスト磁気記録ヘッド |
US13/057,585 US8437228B2 (en) | 2008-08-06 | 2009-06-09 | Thermally-assisted magnetic recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008202545A JP5150403B2 (ja) | 2008-08-06 | 2008-08-06 | 熱アシスト磁気記録ヘッド |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010040112A JP2010040112A (ja) | 2010-02-18 |
JP2010040112A5 JP2010040112A5 (ja) | 2011-02-03 |
JP5150403B2 true JP5150403B2 (ja) | 2013-02-20 |
Family
ID=41663554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008202545A Expired - Fee Related JP5150403B2 (ja) | 2008-08-06 | 2008-08-06 | 熱アシスト磁気記録ヘッド |
Country Status (3)
Country | Link |
---|---|
US (1) | US8437228B2 (ja) |
JP (1) | JP5150403B2 (ja) |
WO (1) | WO2010016329A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010146655A (ja) * | 2008-12-19 | 2010-07-01 | Hitachi Global Storage Technologies Netherlands Bv | 光アシスト磁気記録用ヘッド及びその製造方法 |
JP5322898B2 (ja) * | 2009-11-25 | 2013-10-23 | 株式会社日立製作所 | 熱アシスト磁気ヘッドスライダ及びヘッドジンバルアセンブリ |
US8418353B1 (en) * | 2009-12-23 | 2013-04-16 | Western Digital (Fremont), Llc | Method for providing a plurality of energy assisted magnetic recording EAMR heads |
JP5810492B2 (ja) | 2010-09-01 | 2015-11-11 | 大日本印刷株式会社 | サスペンション用基板、サスペンション、およびサスペンション用基板の製造方法 |
JP5703697B2 (ja) | 2010-11-09 | 2015-04-22 | 大日本印刷株式会社 | サスペンション用基板、サスペンション、素子付サスペンション、ハードディスクドライブ、およびサスペンション用基板の製造方法 |
JP5323802B2 (ja) | 2010-12-13 | 2013-10-23 | ローム株式会社 | 半導体レーザ素子 |
JP5323879B2 (ja) | 2011-01-27 | 2013-10-23 | ローム株式会社 | 半導体レーザ素子 |
US8755256B2 (en) | 2012-11-14 | 2014-06-17 | Headway Technologies, Inc. | Plasmon resonator with dual waveguide excitation for TAMR |
US9070386B2 (en) | 2012-12-04 | 2015-06-30 | Seagate Technology Llc | Polarization rotator |
US9315008B1 (en) | 2013-07-16 | 2016-04-19 | Western Digital Technologies, Inc. | Method and apparatus for aligning an illumination unit to a slider for a magnetic recording device |
US9099145B1 (en) | 2013-12-24 | 2015-08-04 | Western Digital (Fremont), Llc | High contrast alignment marker |
US9153275B1 (en) | 2014-10-15 | 2015-10-06 | HGST Netherlands B.V. | Laser-integrated head gimbal assembly having laser contact protection |
WO2020162564A1 (ja) * | 2019-02-08 | 2020-08-13 | 古河電気工業株式会社 | 光モジュール |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5566157A (en) * | 1991-09-27 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Optical pickup for information recording/reproducing apparatus having polygon prism, hologram, and grating lens |
JP2001319365A (ja) * | 2000-05-10 | 2001-11-16 | Fuji Xerox Co Ltd | 浮上記録ヘッド、ディスク装置、および浮上記録ヘッドの製造方法 |
JP2002050073A (ja) * | 2000-08-02 | 2002-02-15 | Minolta Co Ltd | 浮上ヘッド装置および光記録/再生装置 |
JP2002237018A (ja) * | 2001-02-09 | 2002-08-23 | Tdk Corp | サスペンション及びヘッドジンバルアセンブリ |
JP3903365B2 (ja) | 2001-03-29 | 2007-04-11 | 株式会社東芝 | 光アシスト磁気記録ヘッド及び光アシスト磁気記録装置 |
JP2003162875A (ja) | 2001-11-27 | 2003-06-06 | Alps Electric Co Ltd | 磁気ヘッド及びその製造方法 |
JP2004069743A (ja) * | 2002-08-01 | 2004-03-04 | Fuji Xerox Co Ltd | 高分子光導波路の製造方法 |
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 |
JP2007095167A (ja) | 2005-09-28 | 2007-04-12 | Konica Minolta Holdings Inc | 熱アシスト磁気記録ヘッド及び磁気記録装置 |
JP4129031B2 (ja) * | 2006-06-12 | 2008-07-30 | 株式会社日立製作所 | 近接場光発生器及び記録再生装置 |
TW200801513A (en) | 2006-06-29 | 2008-01-01 | Fermiscan Australia Pty Ltd | Improved process |
JP2008016096A (ja) * | 2006-07-04 | 2008-01-24 | Tdk Corp | 熱アシスト磁気記録用光源ユニット及び該ユニットを備えた薄膜磁気ヘッドの製造方法 |
JP2008059645A (ja) * | 2006-08-30 | 2008-03-13 | Hitachi Ltd | 記録用ヘッド |
JP2008130106A (ja) * | 2006-11-16 | 2008-06-05 | Hitachi Ltd | 熱アシスト磁気記録ヘッド支持機構 |
JP4782660B2 (ja) * | 2006-11-21 | 2011-09-28 | 株式会社日立製作所 | ヘッド,ヘッドジンバルアセンブリ及び情報記録装置 |
JP4497556B2 (ja) * | 2006-12-27 | 2010-07-07 | 東芝ストレージデバイス株式会社 | ヘッドサスペンションアセンブリ、キャリッジアセンブリ、ヘッドスライダアセンブリの製造方法および記憶媒体駆動装置 |
JP4836966B2 (ja) * | 2008-01-18 | 2011-12-14 | 株式会社日立製作所 | ヘッドジンバルアセンブリ及び情報記録装置 |
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2008
- 2008-08-06 JP JP2008202545A patent/JP5150403B2/ja not_active Expired - Fee Related
-
2009
- 2009-06-09 WO PCT/JP2009/060500 patent/WO2010016329A1/ja active Application Filing
- 2009-06-09 US US13/057,585 patent/US8437228B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8437228B2 (en) | 2013-05-07 |
WO2010016329A1 (ja) | 2010-02-11 |
US20110205865A1 (en) | 2011-08-25 |
JP2010040112A (ja) | 2010-02-18 |
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