发明名称 |
SUBSTRATE HAVING A CARBON RICH COATING |
摘要 |
The present invention provides a magnetic recording medium that includes a polymeric flexible substrate and a magnetic layer costing thereon, with a binderless carbon rich layer adhered to the magnetic layer. The present invention also provides a process for the plasma deposition of the carbon rich coating onto a substrate comprising the steps of: a) providing a substrate in a vacuum chamber; b) generating carbon rich plasma in the vacuum chamber by injecting a plasma gas suitable to provide a carbon rich coating into an elongated hollow cathode; and providing a sufficient voltage to create ant maintain plasma; and maintaining a vacuum in the vacuum chamber sufficient for the plasma; and c) exposing the substrate to the plasma while the magnetic medium is influenced by a radio frequency bias electrode to accelerate the plasma toward the substrate and deposit the carbon rich coating on the substrate.
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申请公布号 |
CA2167064(A1) |
申请公布日期 |
1995.02.09 |
申请号 |
CA19932167064 |
申请日期 |
1993.08.03 |
申请人 |
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发明人 |
KOHLER, GUNTER A.;DUERST, RICHARD W.;STUBBS, DANIEL P. |
分类号 |
G11B5/64;G11B5/72;G11B5/84;(IPC1-7):G11B5/84;G11B5/704 |
主分类号 |
G11B5/64 |
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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