TW200849225A - Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk - Google Patents
Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk Download PDFInfo
- Publication number
- TW200849225A TW200849225A TW097105224A TW97105224A TW200849225A TW 200849225 A TW200849225 A TW 200849225A TW 097105224 A TW097105224 A TW 097105224A TW 97105224 A TW97105224 A TW 97105224A TW 200849225 A TW200849225 A TW 200849225A
- Authority
- TW
- Taiwan
- Prior art keywords
- magnetic
- servo
- disc
- pattern
- slightly
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 178
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 239000000696 magnetic material Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 230000007547 defect Effects 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 6
- 101150020445 CYLC1 gene Proteins 0.000 description 12
- 102100036233 Cylicin-1 Human genes 0.000 description 12
- HHNFORCFJOVQNF-UHFFFAOYSA-N cyl-1 Chemical compound N1C(=O)C(CCCCCC(=O)C2OC2)NC(=O)C2CCCN2C(=O)C(C(C)CC)NC(=O)C1CC1=CC=C(OC)C=C1 HHNFORCFJOVQNF-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- WANLLPADDCXPGO-WMKJBNATSA-N (6r,9s,12s)-3-[(2s)-butan-2-yl]-6-[(4-methoxyphenyl)methyl]-9-[6-(oxiran-2-yl)-6-oxohexyl]-1,4,7,10-tetrazabicyclo[10.4.0]hexadecane-2,5,8,11-tetrone Chemical compound C([C@@H]1C(=O)NC(C(N2CCCC[C@H]2C(=O)N[C@@H](CCCCCC(=O)C2OC2)C(=O)N1)=O)[C@@H](C)CC)C1=CC=C(OC)C=C1 WANLLPADDCXPGO-WMKJBNATSA-N 0.000 description 5
- 101100117391 Arabidopsis thaliana DPB2 gene Proteins 0.000 description 5
- 101150080636 CYLC2 gene Proteins 0.000 description 5
- WANLLPADDCXPGO-UHFFFAOYSA-N Cyl-2 Natural products N1C(=O)C(CCCCCC(=O)C2OC2)NC(=O)C2CCCCN2C(=O)C(C(C)CC)NC(=O)C1CC1=CC=C(OC)C=C1 WANLLPADDCXPGO-UHFFFAOYSA-N 0.000 description 5
- 102100024257 Cylicin-2 Human genes 0.000 description 5
- 101100441847 Oryza sativa subsp. japonica CYL2 gene Proteins 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 101100025691 Arabidopsis thaliana NAGLU gene Proteins 0.000 description 4
- 101100441845 Oryza sativa subsp. japonica CYL1 gene Proteins 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000005381 magnetic domain Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 102100036601 Aggrecan core protein Human genes 0.000 description 1
- 101000840469 Arabidopsis thaliana Isochorismate synthase 1, chloroplastic Proteins 0.000 description 1
- 241001416181 Axis axis Species 0.000 description 1
- 108091006419 SLC25A12 Proteins 0.000 description 1
- 108091006418 SLC25A13 Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000003362 replicative effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
-
- 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
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
- G11B5/865—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers by contact "printing"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
-
- 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
- G11B5/596—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 for track following on disks
- G11B5/59688—Servo signal format patterns or signal processing thereof, e.g. dual, tri, quad, burst signal patterns
-
- 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
-
- 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
-
- 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
- G11B5/596—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 for track following on disks
- G11B5/59633—Servo formatting
- G11B5/59655—Sector, sample or burst servo format
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/740,289 US7652839B2 (en) | 2007-04-26 | 2007-04-26 | Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200849225A true TW200849225A (en) | 2008-12-16 |
Family
ID=39671387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097105224A TW200849225A (en) | 2007-04-26 | 2008-02-14 | Magnetic recording disk with identical servo patterns formed on each disk surface by single master template and disk drive using the disk |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7652839B2 (enExample) |
| EP (1) | EP1986185A1 (enExample) |
| JP (1) | JP5049177B2 (enExample) |
| KR (1) | KR20080096386A (enExample) |
| CN (1) | CN101295515A (enExample) |
| BR (1) | BRPI0803930A2 (enExample) |
| RU (1) | RU2008116550A (enExample) |
| SG (1) | SG147365A1 (enExample) |
| TW (1) | TW200849225A (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4489031B2 (ja) * | 2006-02-17 | 2010-06-23 | 東芝ストレージデバイス株式会社 | ディスク装置補正システム、情報管理装置、原盤作製装置および原盤作製方法 |
| US7848040B2 (en) * | 2007-08-17 | 2010-12-07 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording disk and disk drive with amplitude-type servo fields having patterned alternating-polarity servo islands for read/write head positioning |
| US8422169B2 (en) | 2009-12-14 | 2013-04-16 | Seagate Technology Llc | Shallow trench discrete track media (DTM) and pattern transfer process |
| US9311942B2 (en) * | 2009-12-18 | 2016-04-12 | HGST Netherlands B.V. | Information storage device with multiple-use fields in servo pattern |
| US8422161B2 (en) * | 2009-12-18 | 2013-04-16 | HGST Netherlands B.V. | Information storage device with multiple-use fields in servo pattern |
| US9384779B2 (en) | 2009-12-18 | 2016-07-05 | HGST Netherlands B.V. | Information storage device with multiple-use fields in servo pattern |
| JP2011165300A (ja) * | 2010-01-12 | 2011-08-25 | Fujifilm Corp | 磁気記録媒体、該磁気記録媒体を備えた磁気記録装置および転写用担体 |
| JP5553621B2 (ja) * | 2010-01-25 | 2014-07-16 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | ディスク駆動装置 |
| US8477442B2 (en) | 2010-05-11 | 2013-07-02 | HGST Netherlands B.V. | Patterned media for self-servowriting integrated servo fields |
| US8363348B2 (en) | 2010-10-07 | 2013-01-29 | HGST Netherlands B.V. | Patterned media with structured PES servo segments encoding local track position |
| US8335047B2 (en) | 2010-10-07 | 2012-12-18 | HGST Netherlands B.V. | Patterned media with offset PES servo segments with length encoded track position |
| US8670207B2 (en) | 2011-07-06 | 2014-03-11 | HGST Netherlands B.V. | Servo pattern compatible with planarization constraints of patterned media and use of a single master template |
| US8625219B2 (en) * | 2011-07-06 | 2014-01-07 | HGST Netherlands B.V. | Patterned media with an alternating series of concentric servo zones and overlap zones |
| US8743496B2 (en) | 2011-07-06 | 2014-06-03 | HGST Netherlands B.V. | Servo pattern compatible with planarization constraints of patterned media and use of a single master template |
| US8619379B2 (en) * | 2011-07-06 | 2013-12-31 | HGST Netherlands B.V. | Patterned media with an alternating series of concentric servo zones and overlap zones |
| US8630051B2 (en) | 2011-07-06 | 2014-01-14 | HGST Netherlands B.V. | Patterned media with an alternating series of concentric servo zones and overlap zones |
| US8531794B2 (en) | 2011-07-06 | 2013-09-10 | HGST Netherlands, B.V. | Patterned media with an alternating series of concentric servo zones and overlap zones |
| US12100431B1 (en) * | 2023-10-26 | 2024-09-24 | Western Digital Technologies, Inc. | Data storage device with symmetric split burst servo pattern |
| US12277957B1 (en) | 2023-11-02 | 2025-04-15 | Western Digital Technologies, Inc. | Data storage device with embedded mode hop predictor patterns |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912585A (en) * | 1988-04-28 | 1990-03-27 | International Business Machines Corporation | Discrete track thin film magnetic recording disk with embedded servo information |
| JP3344495B2 (ja) * | 1993-03-04 | 2002-11-11 | ソニー株式会社 | 磁気ディスク装置 |
| US5689384A (en) * | 1994-06-30 | 1997-11-18 | International Business Machines Corporation | Timing based servo system for magnetic tape systems |
| TW342495B (en) * | 1996-07-22 | 1998-10-11 | Matsushita Electric Industrial Co Ltd | Master information carrier, method of producing the same, and method for recording master information signal on magnetic recording medium |
| JPH1050013A (ja) * | 1996-08-02 | 1998-02-20 | Fujitsu Ltd | ディスク装置のオフトラック補正方法 |
| US5930065A (en) * | 1997-05-16 | 1999-07-27 | International Business Machines Corporation | Timing based servo longitudinal addressing |
| US5923272A (en) * | 1997-07-08 | 1999-07-13 | International Business Machines Corporation | Serial bitstream code for timing-based servo |
| US6018512A (en) * | 1997-11-18 | 2000-01-25 | Seagate Technology, Inc. | System and method of encoding for identifying a given surface among several identically patterned disk surfaces |
| US6433944B1 (en) * | 1998-09-25 | 2002-08-13 | Fuji Photo Film Co., Ltd. | Master carrier for magnetic transfer and method for transfer |
| US6538835B1 (en) * | 1999-02-22 | 2003-03-25 | Seagate Technology Llc | Position signal distortion compensation during a disc drive seek |
| US6754032B1 (en) * | 1999-10-22 | 2004-06-22 | Seagate Tech. Llc | Method and system for radial and circumferential alignment of data tracks on patterned media |
| JP2003007011A (ja) * | 2001-06-21 | 2003-01-10 | Hitachi Ltd | 磁気ディスク装置 |
| US6798590B2 (en) * | 2002-01-22 | 2004-09-28 | Hitachi Global Storage Technologies Netherlands B.V. | Method for contact magnetic transfer of servo pattern to hard magnetic recording disk |
| US7027246B2 (en) * | 2002-05-09 | 2006-04-11 | Maxtor Corporation | Method for servo pattern application on single-side processed disks in a merged state |
| JP2004213700A (ja) * | 2002-11-15 | 2004-07-29 | Fuji Electric Device Technology Co Ltd | 磁気記録媒体用マスタディスクならびに位置決め装置および方法 |
| US7511912B2 (en) * | 2002-11-22 | 2009-03-31 | Seagate Technology Llc | Writing multiple servo sector patterns to improve servo sector alignment on multiple surfaces |
| US6791774B1 (en) * | 2003-05-12 | 2004-09-14 | Hitachi Global Storage Technologies Netherlands B.V. | Contact magnetic transfer of servo pattern to rigid perpendicular magnetic recording disk |
| US7092183B2 (en) * | 2003-12-10 | 2006-08-15 | Matsushita Electric Industrial Co., Ltd. | Template pattern for improving printed media self-servo writing |
| JP2006031848A (ja) * | 2004-07-16 | 2006-02-02 | Toshiba Corp | 磁気ディスクおよびこれを備えた磁気ディスク装置 |
| JP2006031856A (ja) * | 2004-07-16 | 2006-02-02 | Toshiba Corp | 垂直磁気記録用のパターンドディスク媒体及び同媒体を搭載した磁気ディスクドライブ |
| US7046476B1 (en) * | 2005-01-10 | 2006-05-16 | Hitachi Global Storage Technologies | Method apparatus and system for accessing discontinuous media tracks |
| JP2006318581A (ja) * | 2005-05-13 | 2006-11-24 | Tdk Corp | 情報記録媒体、記録再生装置およびスタンパー |
| US7236325B2 (en) * | 2005-06-09 | 2007-06-26 | Hitachi Global Storage Technologies Netherlands B.V. | Method for formatting a magnetic recording disk with patterned nondata islands of alternating polarity |
-
2007
- 2007-04-26 US US11/740,289 patent/US7652839B2/en not_active Expired - Fee Related
-
2008
- 2008-02-14 TW TW097105224A patent/TW200849225A/zh unknown
- 2008-02-22 EP EP08250621A patent/EP1986185A1/en not_active Ceased
- 2008-03-06 CN CNA2008100820715A patent/CN101295515A/zh active Pending
- 2008-03-06 SG SG200801864-0A patent/SG147365A1/en unknown
- 2008-03-28 JP JP2008087303A patent/JP5049177B2/ja not_active Expired - Fee Related
- 2008-04-07 KR KR1020080032212A patent/KR20080096386A/ko not_active Ceased
- 2008-04-25 RU RU2008116550/28A patent/RU2008116550A/ru not_active Application Discontinuation
- 2008-04-28 BR BRPI0803930-5A patent/BRPI0803930A2/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP5049177B2 (ja) | 2012-10-17 |
| US7652839B2 (en) | 2010-01-26 |
| JP2008276911A (ja) | 2008-11-13 |
| CN101295515A (zh) | 2008-10-29 |
| US20080266701A1 (en) | 2008-10-30 |
| SG147365A1 (en) | 2008-11-28 |
| KR20080096386A (ko) | 2008-10-30 |
| EP1986185A1 (en) | 2008-10-29 |
| BRPI0803930A2 (pt) | 2009-06-02 |
| RU2008116550A (ru) | 2009-10-27 |
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