SG47343A1 - Magnetic recording disk with metal nitride texturing layer process for making the disk drive with improved head-disk interface - Google Patents

Magnetic recording disk with metal nitride texturing layer process for making the disk drive with improved head-disk interface

Info

Publication number
SG47343A1
SG47343A1 SG1995000277A SG1995000277A SG47343A1 SG 47343 A1 SG47343 A1 SG 47343A1 SG 1995000277 A SG1995000277 A SG 1995000277A SG 1995000277 A SG1995000277 A SG 1995000277A SG 47343 A1 SG47343 A1 SG 47343A1
Authority
SG
Singapore
Prior art keywords
disk
making
magnetic recording
metal nitride
layer process
Prior art date
Application number
SG1995000277A
Other languages
English (en)
Inventor
Anthony Wai Wu
James Harvey Kaufman
Frances Doerner
Serhat Metin
Seyyed Mohammad T Mirzamaani
Original Assignee
Ibm
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ibm filed Critical Ibm
Publication of SG47343A1 publication Critical patent/SG47343A1/en

Links

Classifications

    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
    • G11B5/737—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7377—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
SG1995000277A 1994-09-20 1995-04-18 Magnetic recording disk with metal nitride texturing layer process for making the disk drive with improved head-disk interface SG47343A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/309,274 US5705287A (en) 1994-09-20 1994-09-20 Magnetic recording disk with metal nitride texturing layer

Publications (1)

Publication Number Publication Date
SG47343A1 true SG47343A1 (en) 1998-04-17

Family

ID=23197491

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1995000277A SG47343A1 (en) 1994-09-20 1995-04-18 Magnetic recording disk with metal nitride texturing layer process for making the disk drive with improved head-disk interface

Country Status (7)

Country Link
US (1) US5705287A (ko)
EP (1) EP0703573A1 (ko)
JP (1) JPH08102033A (ko)
KR (1) KR100216324B1 (ko)
CN (1) CN1068691C (ko)
MY (1) MY114874A (ko)
SG (1) SG47343A1 (ko)

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JPH117622A (ja) * 1997-04-25 1999-01-12 Hitachi Ltd 磁気記録媒体用基板、磁気記録媒体及び磁気記録媒体の製造方法
KR100413809B1 (ko) * 1998-11-30 2004-02-14 주식회사 대우일렉트로닉스 브이시알의 구간 반복 재생방법
US6583953B1 (en) 1999-07-12 2003-06-24 Mark Lauer Silicon carbide overcoats for information storage systems and method of making
US6870456B2 (en) 1999-11-23 2005-03-22 Intel Corporation Integrated transformer
US6891461B2 (en) * 1999-11-23 2005-05-10 Intel Corporation Integrated transformer
US6856228B2 (en) * 1999-11-23 2005-02-15 Intel Corporation Integrated inductor
US6452247B1 (en) * 1999-11-23 2002-09-17 Intel Corporation Inductor for integrated circuit
US6815220B2 (en) * 1999-11-23 2004-11-09 Intel Corporation Magnetic layer processing
US6873496B1 (en) 2000-01-03 2005-03-29 Western Digital Fremont, Inc. Side rail slider having improved fly height control
JP2002260218A (ja) * 2001-03-05 2002-09-13 Anelva Corp 磁気記録ディスク、磁気記録ディスク製造方法及び磁気記録ディスク製造装置
KR100434028B1 (ko) * 2001-06-29 2004-06-04 동아화학 주식회사 폴리올 및 이의 제조방법
JP2003067908A (ja) * 2001-08-23 2003-03-07 Fuji Electric Co Ltd 垂直磁気記録媒体およびその製造方法
US7852185B2 (en) * 2003-05-05 2010-12-14 Intel Corporation On-die micro-transformer structures with magnetic materials
US8134548B2 (en) * 2005-06-30 2012-03-13 Micron Technology, Inc. DC-DC converter switching transistor current measurement technique
US8900465B1 (en) 2012-06-29 2014-12-02 WD Media, LLC Methods for reducing surface roughness of magnetic media for storage drives
US9449633B1 (en) 2014-11-06 2016-09-20 WD Media, LLC Smooth structures for heat-assisted magnetic recording media

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB289098A (ko) * 1927-04-21 1929-03-07 Berkenhoff & Drebes A.G.
JPS5930230A (ja) * 1982-08-12 1984-02-17 Sony Corp 金属薄膜型磁気記録媒体
JPS6060368A (ja) * 1983-09-13 1985-04-06 Nissan Motor Co Ltd トルクコンバ−タのロツクアツプ制御装置
JP2690948B2 (ja) * 1988-07-04 1997-12-17 株式会社日立製作所 磁気記録媒体の製造方法
JPH0258729A (ja) * 1988-08-24 1990-02-27 Nec Corp 磁気ディスク基板およびその製造方法
US5030494A (en) * 1989-01-26 1991-07-09 International Business Machines Corporation Carbon overcoat for a thin film magnetic recording disk containing discrete clusters of tungsten (W) or tungsten carbide (WC) which project from the surface of the overcoat
US5202810A (en) * 1989-04-27 1993-04-13 Hitachi, Ltd. Magnetic disk having an improved surface configuration
DE69020959T2 (de) * 1989-05-22 1995-11-23 Nippon Sheet Glass Co Ltd Substrat für eine Magnetplatte und ein magnetischer Aufzeichnungsträger, der dieses Substrat verwendet.
JP2547651B2 (ja) * 1989-05-22 1996-10-23 日本板硝子株式会社 磁気記録媒体
DE69029024T2 (de) * 1989-10-05 1997-04-30 Ibm Magnetischer Dünnfilmspeicher und Verfahren zu seiner Herstellung
US5045165A (en) * 1990-02-01 1991-09-03 Komag, Inc. Method for sputtering a hydrogen-doped carbon protective film on a magnetic disk
JPH0462412A (ja) * 1990-06-29 1992-02-27 Olympus Optical Co Ltd 被写体距離検出装置
JPH0462414A (ja) * 1990-06-29 1992-02-27 Matsushita Electric Ind Co Ltd 角速度センサ
JPH0462413A (ja) * 1990-06-29 1992-02-27 Tdk Corp 傾斜センサ
US5053250A (en) * 1991-03-21 1991-10-01 International Business Machines Corporation Thin film magnetic medium with controlled grain morphology and topology for improved performance
JP2830544B2 (ja) * 1991-10-25 1998-12-02 松下電器産業株式会社 磁気記録媒体
JP2559941B2 (ja) * 1992-03-16 1996-12-04 インターナショナル・ビジネス・マシーンズ・コーポレイション 磁気記録媒体及びその製造方法並びに磁気記録装置
JPH0620958A (ja) * 1992-04-10 1994-01-28 Internatl Business Mach Corp <Ibm> 粗いシリコン表面の形成およびその応用
JPH0652536A (ja) * 1992-07-28 1994-02-25 Hitachi Metals Ltd 磁気記録媒体
JP3018762B2 (ja) * 1992-08-06 2000-03-13 富士電機株式会社 磁気記録媒体およびその製造方法
JP2715359B2 (ja) * 1992-08-21 1998-02-18 富士写真フイルム株式会社 フレキシブル磁気記録ディスク及びその製造方法

Also Published As

Publication number Publication date
US5705287A (en) 1998-01-06
CN1129336A (zh) 1996-08-21
CN1068691C (zh) 2001-07-18
MY114874A (en) 2003-02-28
JPH08102033A (ja) 1996-04-16
KR960011890A (ko) 1996-04-20
EP0703573A1 (en) 1996-03-27
KR100216324B1 (ko) 1999-08-16

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