KR100657971B1 - 광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 - Google Patents
광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 Download PDFInfo
- Publication number
- KR100657971B1 KR100657971B1 KR1020050093909A KR20050093909A KR100657971B1 KR 100657971 B1 KR100657971 B1 KR 100657971B1 KR 1020050093909 A KR1020050093909 A KR 1020050093909A KR 20050093909 A KR20050093909 A KR 20050093909A KR 100657971 B1 KR100657971 B1 KR 100657971B1
- Authority
- KR
- South Korea
- Prior art keywords
- base
- light source
- optical element
- magnetic recording
- optical
- Prior art date
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
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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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
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- 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
- G11B2005/0021—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)
- Optics & Photonics (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (9)
- 제1설치홈을 가지는 베이스와;상기 베이스 상에 탑재되는 광원과;상기 베이스 상에 설치되어, 상기 광원에서 조사된 광의 진행을 가이드 하는 광학요소와;상기 베이스에 결합 설치되어 상기 광원과 상기 광학요소를 보호하는 것으로, 상기 제1설치홈에 대향되는 위치에 형성된 제2설치홈을 가지는 커버부재와;상기 제1 및 제2설치홈 내에 결합되어, 상기 광학요소를 통하여 전송된 광 에너지 분포를 바꾸어 강화된 근접장을 형성하는 나노 어퍼쳐;를 포함하는 것을 특징으로 하는 광전송 모듈.
- 제1항에 있어서,상기 베이스와 상기 커버부재 사이에 개재되는 것으로, 상기 광원에서 출사된 광의 일부를 수광하여 상기 광원의 광출력을 모니터링하는 모니터용 광검출기를 더 포함하는 것을 특징으로 하는 광전송 모듈.
- 제2항에 있어서, 상기 커버부재는,상기 베이스에 결합되는 부분으로 상기 베이스와 마주하는 부분에 상기 광원, 상기 광학요소 및 상기 모니터용 광검출기를 회피하여 돌출 형성된 본딩 브릿 지를 더 포함하는 것을 특징으로 하는 광전송 모듈.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 광학요소는,입사광을 도파하는 광 도파로 또는 렌즈로 이루어진 것을 특징으로 하는 광전송 모듈.
- 자기기록매체에 자기 기록장를 인가하기 위한 기록 폴과, 상기 기록 폴과 자기적으로 연결되어 자로을 형성하는 리턴 폴을 포함하는 자기기록부와;상기 자기기록부에 부착되는 것으로 제1설치홈을 가지는 베이스와, 상기 베이스 상에 탑재되는 광원과, 상기 베이스 상에 설치되어 상기 광원에서 조사된 광의 진행을 가이드 하는 광학요소와, 상기 베이스에 결합 설치되어 상기 광원과 상기 광학요소를 보호하는 것으로 상기 제1설치홈에 대향되는 위치에 형성된 제2설치홈을 가지는 커버부재와, 상기 제1 및 제2설치홈 내에 결합되어 상기 광학요소를 통하여 전송된 광 강도 분포를 바꾸어 강화된 근접장을 형성하는 나노 어퍼쳐를 포함하는 광전송 모듈;을 구비한 것을 특징으로 하는 열보조 자기기록 헤드.
- 제5항에 있어서, 상기 광학요소는,입사광을 도파하는 광 도파로 또는 렌즈로 이루어진 것을 특징으로 하는 열보조 자기기록 헤드.
- 제5항에 있어서, 상기 광전송 모듈은,상기 베이스의 외측면이 상기 기록 폴의 외측에 부착된 것을 특징으로 하는 열보조 자기기록 헤드.
- 제5항 내지 제7항 중 어느 한 항에 있어서, 상기 광전송 모듈은,상기 베이스와 상기 커버부재 사이에 개재되는 것으로, 상기 광원에서 출사된 광의 일부를 수광하여 상기 광원의 광출력을 모니터링하는 모니터용 광검출기를 더 포함하는 것을 특징으로 하는 열보조 자기기록 헤드.
- 제8항에 있어서, 상기 커버부재는,상기 베이스에 결합되는 부분으로 상기 베이스와 마주하는 부분에 상기 광원, 상기 광학요소 및 상기 모니터용 광검출기를 회피하여 돌출 형성된 본딩 브릿지를 더 포함하는 것을 특징으로 하는 열보조 자기기록 헤드.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050093909A KR100657971B1 (ko) | 2005-10-06 | 2005-10-06 | 광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 |
NL1032057A NL1032057C2 (nl) | 2005-10-06 | 2006-06-26 | Lichtafgiftemodule en warmteondersteunde magnetische opnamekop die deze gebruikt. |
US11/506,889 US20070081427A1 (en) | 2005-10-06 | 2006-08-21 | Light delivery module and heat-assisted magnet recording head employing the same |
CN200610121327XA CN1945712B (zh) | 2005-10-06 | 2006-08-21 | 光传送模块和使用该模块的热辅助磁记录头 |
JP2006253139A JP4291346B2 (ja) | 2005-10-06 | 2006-09-19 | 光伝送モジュール及びこれを採用した熱補助磁気記録ヘッド |
Applications Claiming Priority (1)
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KR1020050093909A KR100657971B1 (ko) | 2005-10-06 | 2005-10-06 | 광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 |
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KR100657971B1 true KR100657971B1 (ko) | 2006-12-14 |
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ID=37733425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020050093909A KR100657971B1 (ko) | 2005-10-06 | 2005-10-06 | 광전송 모듈 및 이를 채용한 열보조 자기기록 헤드 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070081427A1 (ko) |
JP (1) | JP4291346B2 (ko) |
KR (1) | KR100657971B1 (ko) |
CN (1) | CN1945712B (ko) |
NL (1) | NL1032057C2 (ko) |
Families Citing this family (30)
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US20030198146A1 (en) * | 2002-04-18 | 2003-10-23 | Seagate Technology Llc | Heat assisted magnetic recording head with multilayer electromagnetic radiation emission structure |
KR100707209B1 (ko) * | 2006-01-11 | 2007-04-13 | 삼성전자주식회사 | 열보조 자기기록 헤드 및 그 제조방법 |
JP4947794B2 (ja) * | 2007-11-21 | 2012-06-06 | セイコーインスツル株式会社 | 情報記録再生装置 |
US7986592B2 (en) * | 2008-03-10 | 2011-07-26 | Hitachi Global Storage Technologies, Netherlands B.V. | Components and assembly procedure for thermal assisted recording |
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 |
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 |
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 |
US8625941B1 (en) | 2010-05-20 | 2014-01-07 | Western Digital (Fremont), Llc | Broadband reflective waveguide metal gratings and their formation |
US8339906B2 (en) | 2010-06-30 | 2012-12-25 | Seagate Technology Llc | Transducer assembly for heat assisted magnetic recording light delivery |
US8437229B2 (en) | 2010-07-21 | 2013-05-07 | Seagate Technology Llc | Transducer assembly having grating slits parallel to longitudinal axis of waveguide |
US8456964B1 (en) | 2010-11-16 | 2013-06-04 | Western Digital (Fremont), Llc | Energy assisted magnetic recording head having a reflector for improving efficiency of the light beam |
US8593914B2 (en) | 2010-12-22 | 2013-11-26 | Western Digital (Fremont), Llc | Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive |
US8451695B2 (en) | 2011-06-23 | 2013-05-28 | Seagate Technology Llc | Vertical cavity surface emitting laser with integrated mirror and waveguide |
US8325569B1 (en) | 2011-06-27 | 2012-12-04 | Western Digital (Fremont), Llc | EAMR head having improved optical coupling efficiency |
US8897103B2 (en) | 2011-09-27 | 2014-11-25 | Western Digital Technologies, Inc. | Disk drive calibrating a laser write power for heat assisted magnetic recording |
US8670294B1 (en) | 2012-02-17 | 2014-03-11 | Western Digital (Fremont), Llc | Systems and methods for increasing media absorption efficiency using interferometric waveguides |
US8675455B1 (en) | 2012-02-17 | 2014-03-18 | Western Digital (Fremont), Llc | Systems and methods for controlling light phase difference in interferometric waveguides at near field transducers |
US9286920B1 (en) | 2013-01-31 | 2016-03-15 | Western Digital (Fremont), Llc | Method for compensating for phase variations in an interferometric tapered waveguide in a heat assisted magnetic recording head |
US9336814B1 (en) | 2013-03-12 | 2016-05-10 | Western Digital (Fremont), Llc | Inverse tapered waveguide for use in a heat assisted magnetic recording head |
US8861124B1 (en) | 2013-03-14 | 2014-10-14 | Western Digital (Fremont), Llc | Integrated sensor for monitoring laser power in a heat assisted magnetic recording disk drive |
US8897102B1 (en) | 2013-04-02 | 2014-11-25 | Western Digital (Fremont), Llc | Method and system for measuring light delivery offsets in a heat assisted magnetic recording head |
US9064527B1 (en) | 2013-04-12 | 2015-06-23 | Western Digital (Fremont), Llc | High order tapered waveguide for use in a heat assisted magnetic recording head |
US9064528B1 (en) | 2013-05-17 | 2015-06-23 | Western Digital Technologies, Inc. | Interferometric waveguide usable in shingled heat assisted magnetic recording in the absence of a near-field transducer |
US8923102B1 (en) | 2013-07-16 | 2014-12-30 | Western Digital (Fremont), Llc | Optical grating coupling for interferometric waveguides in heat assisted magnetic recording heads |
US8947985B1 (en) | 2013-07-16 | 2015-02-03 | Western Digital (Fremont), Llc | Heat assisted magnetic recording transducers having a recessed pole |
US9105286B2 (en) * | 2013-07-30 | 2015-08-11 | HGST Netherlands B.V. | Method using epitaxial transfer to integrate HAMR photonic integrated circuit (PIC) into recording head wafer |
US9001628B1 (en) | 2013-12-16 | 2015-04-07 | Western Digital (Fremont), Llc | Assistant waveguides for evaluating main waveguide coupling efficiency and diode laser alignment tolerances for hard disk |
US9142233B1 (en) | 2014-02-28 | 2015-09-22 | Western Digital (Fremont), Llc | Heat assisted magnetic recording writer having a recessed pole |
US9190085B1 (en) | 2014-03-12 | 2015-11-17 | Western Digital (Fremont), Llc | Waveguide with reflective grating for localized energy intensity |
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JP2000187877A (ja) | 1998-12-24 | 2000-07-04 | Sharp Corp | 光導波路素子および導波路型光ヘッド |
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2005
- 2005-10-06 KR KR1020050093909A patent/KR100657971B1/ko active IP Right Grant
-
2006
- 2006-06-26 NL NL1032057A patent/NL1032057C2/nl not_active IP Right Cessation
- 2006-08-21 CN CN200610121327XA patent/CN1945712B/zh not_active Expired - Fee Related
- 2006-08-21 US US11/506,889 patent/US20070081427A1/en not_active Abandoned
- 2006-09-19 JP JP2006253139A patent/JP4291346B2/ja active Active
Patent Citations (4)
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JPH04121839A (ja) * | 1990-09-12 | 1992-04-22 | Brother Ind Ltd | 光集積型ピックアップ |
KR19980030121A (ko) * | 1996-10-29 | 1998-07-25 | 양승택 | 브이홈에 정렬된 렌즈를 가진 광모듈 및 그 제작방법 |
JP2000187877A (ja) | 1998-12-24 | 2000-07-04 | Sharp Corp | 光導波路素子および導波路型光ヘッド |
KR20040107969A (ko) * | 2003-06-16 | 2004-12-23 | 삼성전자주식회사 | 박형 광픽업 |
Also Published As
Publication number | Publication date |
---|---|
JP4291346B2 (ja) | 2009-07-08 |
NL1032057C2 (nl) | 2008-11-04 |
JP2007102993A (ja) | 2007-04-19 |
CN1945712B (zh) | 2011-12-07 |
NL1032057A1 (nl) | 2007-04-10 |
CN1945712A (zh) | 2007-04-11 |
US20070081427A1 (en) | 2007-04-12 |
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