BR9201559A - Metodo de controle das propriedades magneticas de uma camada magnetica de gravacao de pelicula fina,disco rigido magnetico de gravacao e metodo de fabricacao do mesmo - Google Patents

Metodo de controle das propriedades magneticas de uma camada magnetica de gravacao de pelicula fina,disco rigido magnetico de gravacao e metodo de fabricacao do mesmo

Info

Publication number
BR9201559A
BR9201559A BR929201559A BR9201559A BR9201559A BR 9201559 A BR9201559 A BR 9201559A BR 929201559 A BR929201559 A BR 929201559A BR 9201559 A BR9201559 A BR 9201559A BR 9201559 A BR9201559 A BR 9201559A
Authority
BR
Brazil
Prior art keywords
magnetic
recording
manufacturing
hard disk
control
Prior art date
Application number
BR929201559A
Other languages
English (en)
Inventor
David A Edmonson
Kenneth E Johnson
James J Mayerle
Arthur C Wall
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 BR9201559A publication Critical patent/BR9201559A/pt

Links

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • 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
    • G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper 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
    • G11B5/62—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
    • G11B5/7373—Non-magnetic single underlayer comprising chromium
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Record Carriers (AREA)
BR929201559A 1991-05-14 1992-04-28 Metodo de controle das propriedades magneticas de uma camada magnetica de gravacao de pelicula fina,disco rigido magnetico de gravacao e metodo de fabricacao do mesmo BR9201559A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70001091A 1991-05-14 1991-05-14

Publications (1)

Publication Number Publication Date
BR9201559A true BR9201559A (pt) 1993-01-05

Family

ID=24811848

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929201559A BR9201559A (pt) 1991-05-14 1992-04-28 Metodo de controle das propriedades magneticas de uma camada magnetica de gravacao de pelicula fina,disco rigido magnetico de gravacao e metodo de fabricacao do mesmo

Country Status (7)

Country Link
EP (1) EP0514308A1 (pt)
JP (1) JP2536993B2 (pt)
KR (1) KR920022217A (pt)
CN (1) CN1025388C (pt)
BR (1) BR9201559A (pt)
CA (1) CA2062154C (pt)
MY (1) MY116456A (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005251373A (ja) * 2004-02-02 2005-09-15 Fujitsu Ltd 磁気記録媒体、その製造方法、および磁気記憶装置
US20060110626A1 (en) * 2004-11-24 2006-05-25 Heraeus, Inc. Carbon containing sputter target alloy compositions
JP6508381B1 (ja) * 2018-03-22 2019-05-08 Tdk株式会社 磁気センサ装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827927B2 (ja) * 1987-07-09 1996-03-21 富士通株式会社 磁気記録媒体
JPH02244421A (ja) * 1989-03-17 1990-09-28 Hitachi Ltd 薄膜磁気デイスク及びその製造方法
JPH038119A (ja) * 1989-06-05 1991-01-16 Mitsubishi Kasei Corp 磁気記録媒体の製造方法
JPH0363920A (ja) * 1989-08-01 1991-03-19 Hitachi Ltd 磁気記録媒体及びその製造方法

Also Published As

Publication number Publication date
CA2062154A1 (en) 1992-11-15
CN1025388C (zh) 1994-07-06
EP0514308A1 (en) 1992-11-19
CA2062154C (en) 1997-01-21
JPH05101378A (ja) 1993-04-23
CN1066741A (zh) 1992-12-02
JP2536993B2 (ja) 1996-09-25
KR920022217A (ko) 1992-12-19
MY116456A (en) 2004-02-28

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Legal Events

Date Code Title Description
EE Request for examination
EG Technical examination (opinion): publication of technical examination (opinion)
FC Decision: refusal