CN101022013A - 垂直磁记录介质 - Google Patents
垂直磁记录介质 Download PDFInfo
- Publication number
- CN101022013A CN101022013A CNA2006100940370A CN200610094037A CN101022013A CN 101022013 A CN101022013 A CN 101022013A CN A2006100940370 A CNA2006100940370 A CN A2006100940370A CN 200610094037 A CN200610094037 A CN 200610094037A CN 101022013 A CN101022013 A CN 101022013A
- Authority
- CN
- China
- Prior art keywords
- layer
- ferromagnetic
- recording medium
- magnetic recording
- perpendicular magnetic
- 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 147
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 124
- 230000008878 coupling Effects 0.000 claims abstract description 38
- 238000010168 coupling process Methods 0.000 claims abstract description 38
- 238000005859 coupling reaction Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 33
- 239000003302 ferromagnetic material Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 10
- 229910052741 iridium Inorganic materials 0.000 claims description 7
- 229910052703 rhodium Inorganic materials 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 239000011236 particulate material Substances 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 7
- 229910017090 AlO 2 Inorganic materials 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 5
- 239000010952 cobalt-chrome Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 229910003321 CoFe Inorganic materials 0.000 description 4
- 229910002441 CoNi Inorganic materials 0.000 description 4
- 229910018979 CoPt Inorganic materials 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910019222 CoCrPt Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005290 antiferromagnetic effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012797 qualification Methods 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
-
- 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
- G11B2005/0026—Pulse recording
- G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006037641 | 2006-02-15 | ||
JP2006037641A JP2007220177A (ja) | 2006-02-15 | 2006-02-15 | 垂直磁気記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101022013A true CN101022013A (zh) | 2007-08-22 |
CN100545913C CN100545913C (zh) | 2009-09-30 |
Family
ID=38368157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100940370A Expired - Fee Related CN100545913C (zh) | 2006-02-15 | 2006-06-20 | 垂直磁记录介质 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070188923A1 (zh) |
JP (1) | JP2007220177A (zh) |
KR (1) | KR100808077B1 (zh) |
CN (1) | CN100545913C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108182951A (zh) * | 2016-12-08 | 2018-06-19 | 昭和电工株式会社 | 磁记录介质、磁记录介质的制造方法和磁记录再生装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060228586A1 (en) * | 2005-04-06 | 2006-10-12 | Seagate Technology Llc | Ferromagnetically coupled magnetic recording media |
US9978413B2 (en) | 2006-06-17 | 2018-05-22 | Dieter Suess | Multilayer exchange spring recording media |
JP4623594B2 (ja) * | 2006-09-05 | 2011-02-02 | 富士電機ホールディングス株式会社 | 垂直磁気記録媒体 |
EP1906137A1 (en) * | 2006-09-29 | 2008-04-02 | Leica Geosystems AG | Method and device for generating a synthetic wavelength |
WO2008149812A1 (ja) * | 2007-05-30 | 2008-12-11 | Hoya Corporation | 垂直磁気記録媒体および垂直磁気記録媒体の製造方法 |
KR101452253B1 (ko) * | 2007-08-30 | 2014-10-21 | 시게이트 테크놀로지 엘엘씨 | 비트 패턴 미디어 |
KR101344407B1 (ko) * | 2007-09-21 | 2013-12-26 | 후지 덴키 가부시키가이샤 | 자기기록매체 |
JP4922976B2 (ja) * | 2008-03-26 | 2012-04-25 | 昭和電工株式会社 | 磁気記録媒体の製造方法 |
JP2009238274A (ja) * | 2008-03-26 | 2009-10-15 | Fujitsu Ltd | 磁気記録媒体及び磁気記録装置 |
JPWO2009118854A1 (ja) * | 2008-03-27 | 2011-07-21 | 東芝ストレージデバイス株式会社 | 記録媒体駆動装置および磁気記録媒体並びにヘッド素子の浮上量制御方法およびヘッド素子の浮上量制御回路 |
WO2010032766A1 (ja) | 2008-09-16 | 2010-03-25 | Hoya株式会社 | 垂直磁気記録媒体およびその製造方法 |
JP5620071B2 (ja) * | 2008-09-16 | 2014-11-05 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気記録媒体 |
US9064518B2 (en) | 2008-09-16 | 2015-06-23 | Wd Media (Singapore) Pte. Ltd. | Perpendicular magnetic recording medium |
JP2010097680A (ja) * | 2008-09-16 | 2010-04-30 | Hoya Corp | 垂直磁気記録媒体 |
US8685547B2 (en) * | 2009-02-19 | 2014-04-01 | Seagate Technology Llc | Magnetic recording media with enhanced writability and thermal stability |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6602620B1 (en) * | 1998-12-28 | 2003-08-05 | Kabushiki Kaisha Toshiba | Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof |
EP1302933B1 (en) * | 1999-06-08 | 2004-09-08 | Fujitsu Limited | Magnetic recording medium |
US6280813B1 (en) * | 1999-10-08 | 2001-08-28 | International Business Machines Corporation | Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer |
GB2396740B (en) * | 2001-11-30 | 2006-02-01 | Seagate Technology Llc | Anti-ferromagnetically coupled perpendicular magnetic recording media |
JP2004039033A (ja) * | 2002-06-28 | 2004-02-05 | Toshiba Corp | 磁気記録媒体及び磁気記録再生装置 |
US7282277B2 (en) * | 2004-04-20 | 2007-10-16 | Seagate Technology Llc | Magnetic recording media with Cu-containing magnetic layers |
JP4812254B2 (ja) * | 2004-01-08 | 2011-11-09 | 富士電機株式会社 | 垂直磁気記録媒体、および、その製造方法 |
JP2005276365A (ja) * | 2004-03-25 | 2005-10-06 | Toshiba Corp | グラニュラ薄膜、垂直磁気記録媒体および磁気記録再生装置 |
JP4540557B2 (ja) * | 2004-07-05 | 2010-09-08 | 富士電機デバイステクノロジー株式会社 | 垂直磁気記録媒体 |
US20060228586A1 (en) * | 2005-04-06 | 2006-10-12 | Seagate Technology Llc | Ferromagnetically coupled magnetic recording media |
-
2006
- 2006-02-15 JP JP2006037641A patent/JP2007220177A/ja active Pending
- 2006-05-30 US US11/442,220 patent/US20070188923A1/en not_active Abandoned
- 2006-06-20 CN CNB2006100940370A patent/CN100545913C/zh not_active Expired - Fee Related
- 2006-06-30 KR KR1020060060800A patent/KR100808077B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108182951A (zh) * | 2016-12-08 | 2018-06-19 | 昭和电工株式会社 | 磁记录介质、磁记录介质的制造方法和磁记录再生装置 |
Also Published As
Publication number | Publication date |
---|---|
KR100808077B1 (ko) | 2008-02-28 |
CN100545913C (zh) | 2009-09-30 |
KR20070082481A (ko) | 2007-08-21 |
US20070188923A1 (en) | 2007-08-16 |
JP2007220177A (ja) | 2007-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SHOWA DENKO K. K. Free format text: FORMER OWNER: FUJITSU LIMITED Effective date: 20100324 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: KAWASAKI CITY, KANAGAWA PREFECTURE, JAPAN TO: TOKYO, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100324 Address after: Tokyo, Japan Patentee after: Showa Denko K. K. Address before: Kawasaki, Kanagawa, Japan Patentee before: Fujitsu Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20140620 |
|
EXPY | Termination of patent right or utility model |