CN101859571B - 具快速切换的螺旋写入线圈和辅助线圈的垂直磁记录系统 - Google Patents
具快速切换的螺旋写入线圈和辅助线圈的垂直磁记录系统 Download PDFInfo
- Publication number
- CN101859571B CN101859571B CN200910262170.6A CN200910262170A CN101859571B CN 101859571 B CN101859571 B CN 101859571B CN 200910262170 A CN200910262170 A CN 200910262170A CN 101859571 B CN101859571 B CN 101859571B
- Authority
- CN
- China
- Prior art keywords
- write
- spiral winding
- pole
- additional conductive
- auxiliary
- 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
Links
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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
- G11B5/312—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
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/419,278 | 2009-04-06 | ||
US12/419,278 US8116031B2 (en) | 2009-04-06 | 2009-04-06 | Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101859571A CN101859571A (zh) | 2010-10-13 |
CN101859571B true CN101859571B (zh) | 2014-10-08 |
Family
ID=42825994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910262170.6A Expired - Fee Related CN101859571B (zh) | 2009-04-06 | 2009-12-25 | 具快速切换的螺旋写入线圈和辅助线圈的垂直磁记录系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8116031B2 (zh) |
JP (1) | JP2010244677A (zh) |
CN (1) | CN101859571B (zh) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8422159B2 (en) * | 2009-06-04 | 2013-04-16 | Seagate Technology Llc | Microwave-assisted magnetic recording with collocated microwave and write fields |
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 |
US9099110B1 (en) * | 2014-07-15 | 2015-08-04 | HGST Netherlands, B.V. | Real time writer shields magnetization optimization for FTI improvement |
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 |
US10366714B1 (en) | 2016-04-28 | 2019-07-30 | Western Digital Technologies, Inc. | Magnetic write head for providing spin-torque-assisted write field enhancement |
US10388305B1 (en) | 2016-12-30 | 2019-08-20 | Western Digital Technologies, Inc. | Apparatus and method for writing to magnetic media using an AC bias current to enhance the write field |
US10424323B1 (en) | 2016-12-30 | 2019-09-24 | Western Digital Technologies, Inc. | High-bandwidth STO bias architecture with integrated slider voltage potential control |
US10891974B1 (en) | 2017-06-07 | 2021-01-12 | Sandisk Technologies Llc | Magnetic head with current assisted magnetic recording and method of making thereof |
US10896690B1 (en) | 2017-06-07 | 2021-01-19 | Sandisk Technologies Llc | Magnetic head with current assisted magnetic recording and method of making thereof |
US10679650B2 (en) | 2017-10-13 | 2020-06-09 | Western Digital Technologies, Inc. | Current-assisted magnetic recording write head with improved write gap structure |
US10699734B2 (en) | 2017-11-02 | 2020-06-30 | Western Digital Technologies, Inc. | Magnetic recording write head with selected write gap current direction for minimization of cross-track interference |
US10311900B1 (en) * | 2018-01-19 | 2019-06-04 | Headway Technologies, Inc. | Magnetic core and coil design for double perpendicular magnetic recording (PMR) writers |
US10360935B1 (en) * | 2018-05-22 | 2019-07-23 | Headway Technologies, Inc. | Dual write heater for slider surface topography control in double perpendicular magnetic recording (PMR) writers |
US10839844B1 (en) | 2018-06-18 | 2020-11-17 | Western Digital Technologies, Inc. | Current-assisted magnetic recording write head with wide conductive element in the write gap |
US10891975B1 (en) | 2018-10-09 | 2021-01-12 | SanDiskTechnologies LLC. | Magnetic head with assisted magnetic recording and method of making thereof |
US11017801B1 (en) | 2018-10-09 | 2021-05-25 | Western Digital Technologies, Inc. | Magnetic head with assisted magnetic recording and method of making thereof |
US11011190B2 (en) | 2019-04-24 | 2021-05-18 | Western Digital Technologies, Inc. | Magnetic write head with write-field enhancement structure including a magnetic notch |
US10957346B2 (en) | 2019-05-03 | 2021-03-23 | Western Digital Technologies, Inc. | Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses |
US11087784B2 (en) | 2019-05-03 | 2021-08-10 | Western Digital Technologies, Inc. | Data storage devices with integrated slider voltage potential control |
US10872625B1 (en) | 2019-11-21 | 2020-12-22 | Western Digital Technologies, Inc. | Helical coils design and process for dual writer magnetic recording |
US10878841B1 (en) | 2019-11-25 | 2020-12-29 | Western Digital Technologies, Inc. | Dual writer for advanced magnetic recording |
US10839831B1 (en) | 2019-12-30 | 2020-11-17 | Western Digital Technologies, Inc. | Dual writer designs with SOT and STT assisted recording |
US11264051B1 (en) * | 2020-08-25 | 2022-03-01 | Headway Technologies, Inc. | Capacitive one turn (C1T) perpendicular magnetic recording (PMR) writer designs |
US11854584B1 (en) | 2021-07-29 | 2023-12-26 | Western Digital Technologies, Inc. | Current assisted HAMR magnetic writer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1356691A (zh) * | 2000-11-28 | 2002-07-03 | 三星电子株式会社 | 磁头 |
US6671128B2 (en) * | 2001-03-29 | 2003-12-30 | Seagate Technology Llc | Recording head with oppositely directed microstrip waveguide conductors to induce a magnetic write field for longitudinal or perpendicular magnetic recording |
CN1828725A (zh) * | 2005-03-01 | 2006-09-06 | 西加特技术有限责任公司 | 带有辅助偏置的写入器结构 |
Family Cites Families (30)
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 |
US6785092B2 (en) * | 2001-07-24 | 2004-08-31 | Seagate Technology Llc | White head for high anisotropy media |
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 |
CN1248196C (zh) | 2001-08-21 | 2006-03-29 | 西加特技术有限责任公司 | 包括空间激励的自旋波模式写入器的磁记录头 |
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 |
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 |
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 |
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 |
US20080112080A1 (en) | 2006-11-13 | 2008-05-15 | Hitachi Global Storage Technologies | Magnetic write head employing multiple magnetomotive force (MMF) sources |
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 US12/419,278 patent/US8116031B2/en not_active Expired - Fee Related
- 2009-12-25 CN CN200910262170.6A patent/CN101859571B/zh not_active Expired - Fee Related
-
2010
- 2010-03-31 JP JP2010080603A patent/JP2010244677A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1356691A (zh) * | 2000-11-28 | 2002-07-03 | 三星电子株式会社 | 磁头 |
US6671128B2 (en) * | 2001-03-29 | 2003-12-30 | Seagate Technology Llc | Recording head with oppositely directed microstrip waveguide conductors to induce a magnetic write field for longitudinal or perpendicular magnetic recording |
CN1828725A (zh) * | 2005-03-01 | 2006-09-06 | 西加特技术有限责任公司 | 带有辅助偏置的写入器结构 |
Also Published As
Publication number | Publication date |
---|---|
JP2010244677A (ja) | 2010-10-28 |
US8116031B2 (en) | 2012-02-14 |
US20100254041A1 (en) | 2010-10-07 |
CN101859571A (zh) | 2010-10-13 |
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PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent for 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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COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HITACHI GLOBAL STORAGE TECH TO: HGST NETHERLANDS BV |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190116 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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20201225 |