发明名称 |
Manufacturing method of magnetic recording medium |
摘要 |
In a manufacturing method of a magnetic recording medium with a vacuum deposition, two shielding members are provided above a substrate for defining an aperture. An evaporation source is located at a position wherein evaporated atoms from an evaporation material can adhere to a moving substrate through the aperture. The substrate is moved while a material in the evaporation source is irradiated at two evaporation portions with two electron beams along a moving direction of the substrate to form a magnetic layer. Thus, curving of columnar gains formed in the magnetic layer is suppressed or crystal orientation is enhanced, and magnetic read/write characteristics are improved. Further, a productivity is improved because the aperture can be enlarged than previously by using the two evaporation portions.
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申请公布号 |
US5549936(A) |
申请公布日期 |
1996.08.27 |
申请号 |
US19940325125 |
申请日期 |
1994.10.18 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TOHMA, KIYOKAZU;YOSHIMOTO, KAZUNARI;SUGITA, RYUJI;ISHIDA, TATSUAKI |
分类号 |
G11B5/85;(IPC1-7):B05D3/06 |
主分类号 |
G11B5/85 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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