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1. WO2009004987 - METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM

Publication Number WO/2009/004987
Publication Date 08.01.2009
International Application No. PCT/JP2008/061682
International Filing Date 20.06.2008
IPC
G11B 5/84 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
84Processes or apparatus specially adapted for manufacturing record carriers
G11B 5/65 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
64comprising only the magnetic material without bonding agent
65characterised by its composition
CPC
G11B 5/65
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
64comprising only the magnetic material without bonding agent
65characterised by its composition
G11B 5/855
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
84Processes or apparatus specially adapted for manufacturing record carriers
855Coating only part of a support with a magnetic layer
Applicants
  • KABUSHIKI KAISHA TOSHIBA [JP]/[JP] (AllExceptUS)
  • KIMURA, Kaori [JP]/[JP] (UsOnly)
  • KAMATA, Yoshiyuki [JP]/[JP] (UsOnly)
  • SHIROTORI, Satoshi [JP]/[JP] (UsOnly)
  • SAKURAI, Masatoshi [JP]/[JP] (UsOnly)
Inventors
  • KIMURA, Kaori
  • KAMATA, Yoshiyuki
  • SHIROTORI, Satoshi
  • SAKURAI, Masatoshi
Agents
  • SUZUYE, Takehiko
Priority Data
2007-17304729.06.2007JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM
(FR) PROCÉDÉ DE FABRICATION D'UN SUPPORT D'ENREGISTREMENT MAGNÉTIQUE ET SUPPORT D'ENREGISTREMENT MAGNÉTIQUE
Abstract
(EN)
According to one embodiment, a method of manufacturing a magnetic recording medium includes forming protruded magnetic patterns on a substrate, depositing a nonmagnetic material in recesses between the magnetic patterns and on the magnetic patterns, and etching back the nonmagnetic material using an oxygen-containing etching gas while reforming a surface of the nonmagnetic material.
(FR)
Selon un mode de réalisation, l'invention concerne un procédé de fabrication d'un support d'enregistrement magnétique qui comprend la formation de motifs magnétiques en saillie sur un substrat, le dépôt d'un matériau non-magnétique dans des cavités entre les motifs magnétiques et sur les motifs magnétiques, et la gravure en retour du matériau non-magnétique à l'aide d'un gaz de gravure contenant de l'oxygène, tout en reformant une surface du matériau non-magnétique.
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