发明名称 PRODUCTION OF MAGNETIC RECORDING MEDIUM
摘要 PURPOSE:To obtain a magnetic recording medium which has excellent C/N and decreased defects such as error rate and drop-outs by using a target disposed with plural recessed surface parts having the anisotropy of the major axis in the moving direction at the time of depositing a thin ferromagnetic metallic film by vapor deposition by sputtering on a moving high-polymer film. CONSTITUTION:The target 19 provided with the plural recessed surface parts 20 having the anisotropy in the moving direction is used at the time of depositing the ferromagnetic metal by vapor deposition by sputtering on the moving high-polymer film 10. Since the anisotropy strong in the moving direction of the high-polymer film is generated by the anisotropy of the plural recessed surface parts possessed by the target, large coercive force is obtd. on the high- polymer film even if Ti or Cr is not interposed therein and since the density of the thin ferromagnetic metallic film is improved, the contact with a magnetic head is stabilized and the good C/N and error rate is obtd.
申请公布号 JPS63275041(A) 申请公布日期 1988.11.11
申请号 JP19870111009 申请日期 1987.05.07
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 SHINOHARA KOICHI
分类号 G11B5/85;G11B5/851 主分类号 G11B5/85
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