CN101859572A - 垂直磁记录写系统 - Google Patents
垂直磁记录写系统 Download PDFInfo
- Publication number
- CN101859572A CN101859572A CN200910262512A CN200910262512A CN101859572A CN 101859572 A CN101859572 A CN 101859572A CN 200910262512 A CN200910262512 A CN 200910262512A CN 200910262512 A CN200910262512 A CN 200910262512A CN 101859572 A CN101859572 A CN 101859572A
- Authority
- CN
- China
- Prior art keywords
- coil
- magnetic recording
- perpendicular magnetic
- recording system
- main
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 108
- 230000004907 flux Effects 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 230000005350 ferromagnetic resonance Effects 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 2
- 230000005415 magnetization Effects 0.000 description 27
- 239000010410 layer Substances 0.000 description 12
- 239000010408 film Substances 0.000 description 9
- 206010019133 Hangover Diseases 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 235000012771 pancakes Nutrition 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910003321 CoFe Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 239000003302 ferromagnetic material Substances 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 230000001360 synchronised effect Effects 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
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
- G11B5/312—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles
- G11B5/3123—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles by using special coil configurations or conductors
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/419,281 | 2009-04-06 | ||
US12/419,281 US8116032B2 (en) | 2009-04-06 | 2009-04-06 | Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetization |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101859572A true CN101859572A (zh) | 2010-10-13 |
CN101859572B CN101859572B (zh) | 2014-12-17 |
Family
ID=42825995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910262512.4A Expired - Fee Related CN101859572B (zh) | 2009-04-06 | 2009-12-29 | 垂直磁记录写系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8116032B2 (zh) |
JP (1) | JP2010244678A (zh) |
CN (1) | CN101859572B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104103281A (zh) * | 2013-04-12 | 2014-10-15 | 西部数据(弗里蒙特)公司 | 具有细长形状的附加极的磁记录换能器 |
CN105023583A (zh) * | 2014-04-24 | 2015-11-04 | 株式会社东芝 | 磁头、具备其的头万向架组件及盘装置 |
CN116984747A (zh) * | 2023-09-19 | 2023-11-03 | 讯创(天津)电子有限公司 | 基于lmc工艺使用激光束刻蚀射频区域的方法 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7935435B2 (en) | 2008-08-08 | 2011-05-03 | Seagate Technology Llc | Magnetic memory cell construction |
US20150137919A1 (en) * | 2011-10-25 | 2015-05-21 | Correlated Magnetics Research, Llc | System and Method for Producing Magnetic Structures |
US8179633B2 (en) * | 2009-08-28 | 2012-05-15 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization |
US8508973B2 (en) * | 2010-11-16 | 2013-08-13 | Seagate Technology Llc | Method of switching out-of-plane magnetic tunnel junction cells |
US8547659B1 (en) * | 2011-05-09 | 2013-10-01 | Western Digital (Fremont), Llc | System for providing a transducer having a main coil and an additional coil separated from the main pole by a write shield |
US9099108B2 (en) * | 2011-07-06 | 2015-08-04 | Seagate Technology Llc | Magnetically biased write pole |
US8379346B1 (en) * | 2011-07-29 | 2013-02-19 | Tdk Corporation | Method of forming metal to a concave portion of a substrate, method of manufacturing a magnetic head and a magnetic head |
US8687318B2 (en) * | 2012-03-13 | 2014-04-01 | Seagate Technology Llc | Recording head coil structure |
US8792208B1 (en) * | 2012-05-25 | 2014-07-29 | Western Digital (Fremont), Llc | Method for providing side shields having non-conformal regions for a magnetic recording transducer |
JP2014086122A (ja) * | 2012-10-26 | 2014-05-12 | Toshiba Corp | 磁気記録ヘッド、これを備えたディスク装置 |
US9263067B1 (en) | 2013-05-29 | 2016-02-16 | Western Digital (Fremont), Llc | Process for making PMR writer with constant side wall angle |
US9275657B1 (en) | 2013-08-14 | 2016-03-01 | Western Digital (Fremont), Llc | Process for making PMR writer with non-conformal side gaps |
US9099110B1 (en) * | 2014-07-15 | 2015-08-04 | HGST Netherlands, B.V. | Real time writer shields magnetization optimization for FTI improvement |
US9286919B1 (en) | 2014-12-17 | 2016-03-15 | Western Digital (Fremont), Llc | Magnetic writer having a dual side gap |
US9495979B1 (en) | 2015-09-30 | 2016-11-15 | Seagate Technology Llc | Magnetic recording head front shield formation |
US9799351B1 (en) | 2015-11-30 | 2017-10-24 | Western Digital (Fremont), Llc | Short yoke length writer having assist coils |
US10482905B2 (en) * | 2018-04-02 | 2019-11-19 | Headway Technologies, Inc. | Magnetic core and coil design for double perpendicular magnetic recording (PMR) writers |
US10643640B1 (en) * | 2019-01-23 | 2020-05-05 | Headway Technologies, Inc. | Ultimate double yoke (uDY) combined with one turn coil designs for perpendicular magnetic recording (PMR) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005525663A (ja) * | 2001-07-24 | 2005-08-25 | シーゲイト テクノロジー エルエルシー | 高度異方性メディア用の書き込みヘッド |
US7072142B2 (en) * | 2003-07-28 | 2006-07-04 | Hitachi Global Storage Technologies Netherlands B.V. | Apparatus for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation |
CN101183530A (zh) * | 2006-11-13 | 2008-05-21 | 日立环球储存科技荷兰有限公司 | 采用多磁动势源的磁写头 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5960722A (ja) | 1982-09-30 | 1984-04-06 | Fujitsu Ltd | 薄膜磁気ヘツド |
JP3211999B2 (ja) * | 1992-06-26 | 2001-09-25 | キヤノン株式会社 | 光磁気記録装置 |
US5869988A (en) * | 1997-03-25 | 1999-02-09 | Marvell Technology Group, Ltd. | High speed write driver for inductive heads |
US6219193B1 (en) * | 1998-02-20 | 2001-04-17 | Seagate Technology Llc | Superpositioning microactuator control and write current signals in a disc drive |
US6349009B1 (en) * | 1998-06-05 | 2002-02-19 | Seagate Technology Llc | Head assembly with integrated write current shaping circuit |
US6816339B1 (en) * | 2000-01-10 | 2004-11-09 | Seagate Technology Llc | Perpendicular magnetic recording head with longitudinal magnetic field generator to facilitate magnetization switching |
JP2001202601A (ja) | 2000-01-20 | 2001-07-27 | Hitachi Ltd | 記録装置 |
US6570739B2 (en) * | 2000-02-10 | 2003-05-27 | International Business Machines Corporation | Magnetic head having write head element with high aspect ratio coil |
US6515826B1 (en) * | 2000-08-14 | 2003-02-04 | International Business Machines Corporation | Magnetic head induction coil fabrication method utilizing aspect ratio dependent etching |
JP2003036503A (ja) * | 2001-07-24 | 2003-02-07 | Hitachi Ltd | 垂直記録用磁気ヘッド及びそれを搭載した磁気ディスク装置 |
JP2005526339A (ja) * | 2001-08-21 | 2005-09-02 | シーゲイト テクノロジー エルエルシー | 空間ポンプド・スピン波モード・ライターを含む磁気記録ヘッド |
JP2004227709A (ja) | 2003-01-24 | 2004-08-12 | Nippon Hoso Kyokai <Nhk> | 磁気記録ヘッドおよびそれを用いた磁気記録装置 |
US7070716B2 (en) * | 2003-07-28 | 2006-07-04 | Hitachi Global Storage Technologies Netherlands B.V. | Method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation |
US7002775B2 (en) * | 2003-09-30 | 2006-02-21 | Hitachi Global Storage Technologies Netherlands B.V. | Head for perpendicular magnetic recording with a shield structure connected to the return pole piece |
US7237320B2 (en) * | 2003-12-08 | 2007-07-03 | Hitachi Global Storage Technologies Netherlands B.V. | Methods of orienting an easy axis of a high-aspect ratio write head for improved writing efficiency |
US7256955B2 (en) * | 2004-03-17 | 2007-08-14 | Seagate Technology Llc | High frequency assisted writing |
US7591427B2 (en) * | 2004-09-10 | 2009-09-22 | Josef Osterweil | Method and system for a static magnetic read/write head |
US7397633B2 (en) * | 2005-03-01 | 2008-07-08 | Seagate Technology, Llc | Writer structure with assisted bias |
JP2007299460A (ja) * | 2006-04-28 | 2007-11-15 | Tdk Corp | 磁気ヘッド装置及び磁気記録再生装置 |
US7889458B2 (en) * | 2006-11-13 | 2011-02-15 | Hitachi Global Storage Technologies Netherlands B.V. | Write head with self-cross biased pole for high speed magnetic recording |
US20080112087A1 (en) * | 2006-11-14 | 2008-05-15 | Seagate Technology Llc | WAMR writer with an integrated spin momentum transfer driven oscillator for generating a microwave assist field |
US20080117545A1 (en) * | 2006-11-20 | 2008-05-22 | Seagate Technology Llc | Data storage system with field assist source |
US7724469B2 (en) * | 2006-12-06 | 2010-05-25 | Seagate Technology Llc | High frequency field assisted write device |
JP2008159105A (ja) * | 2006-12-21 | 2008-07-10 | Tdk Corp | 強磁性共鳴を用いる磁気記録方法及び該方法に用いる薄膜磁気ヘッド |
US7633711B2 (en) * | 2007-02-07 | 2009-12-15 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head with helical coil structure using multiple materials |
US7768744B2 (en) * | 2007-05-02 | 2010-08-03 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording write head with coplanar main pole and return poles and magnetic recording system |
US8228632B2 (en) * | 2009-05-20 | 2012-07-24 | Seagate Technology Llc | Transducing head design for microwave assisted magnetic recording |
US8179633B2 (en) * | 2009-08-28 | 2012-05-15 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization |
-
2009
- 2009-04-06 US US12/419,281 patent/US8116032B2/en not_active Expired - Fee Related
- 2009-12-29 CN CN200910262512.4A patent/CN101859572B/zh not_active Expired - Fee Related
-
2010
- 2010-03-31 JP JP2010080604A patent/JP2010244678A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005525663A (ja) * | 2001-07-24 | 2005-08-25 | シーゲイト テクノロジー エルエルシー | 高度異方性メディア用の書き込みヘッド |
US7072142B2 (en) * | 2003-07-28 | 2006-07-04 | Hitachi Global Storage Technologies Netherlands B.V. | Apparatus for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation |
CN101183530A (zh) * | 2006-11-13 | 2008-05-21 | 日立环球储存科技荷兰有限公司 | 采用多磁动势源的磁写头 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104103281A (zh) * | 2013-04-12 | 2014-10-15 | 西部数据(弗里蒙特)公司 | 具有细长形状的附加极的磁记录换能器 |
CN104103281B (zh) * | 2013-04-12 | 2017-08-29 | 西部数据(弗里蒙特)公司 | 具有细长形状的附加极的磁记录换能器 |
CN105023583A (zh) * | 2014-04-24 | 2015-11-04 | 株式会社东芝 | 磁头、具备其的头万向架组件及盘装置 |
CN116984747A (zh) * | 2023-09-19 | 2023-11-03 | 讯创(天津)电子有限公司 | 基于lmc工艺使用激光束刻蚀射频区域的方法 |
CN116984747B (zh) * | 2023-09-19 | 2023-11-24 | 讯创(天津)电子有限公司 | 基于lmc工艺使用激光束刻蚀射频区域的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101859572B (zh) | 2014-12-17 |
JP2010244678A (ja) | 2010-10-28 |
US20100254042A1 (en) | 2010-10-07 |
US8116032B2 (en) | 2012-02-14 |
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SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: Amsterdam Applicant after: Hitachi Global Storage Technologies Netherlands B. V. Address before: Amsterdam Applicant before: Hitachi Global Storage Tech |
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Free format text: CORRECT: APPLICANT; FROM: HITACHI GLOBAL STORAGE TECH TO: HGST NETHERLANDS BV |
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GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190129 Address after: American California Patentee after: Western Digital Technologies, Inc. Address before: Amsterdam Patentee before: Hitachi Global Storage Technologies Netherlands B. V. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20201229 |
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CF01 | Termination of patent right due to non-payment of annual fee |