发明授权
US06565719B1 Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 content
有权
磁盘包括具有高SP3含量的第一碳外涂层和具有低SP3含量的第二碳外涂层
- 专利标题： Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 content
- 专利标题（中）： 磁盘包括具有高SP3含量的第一碳外涂层和具有低SP3含量的第二碳外涂层
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申请号： US09604490申请日： 2000-06-27
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公开(公告)号： US06565719B1公开(公告)日： 2003-05-20
- 发明人: Bruce Lairson , Ching Jackie Tsoi , Wen Liu , Shigeto Hashimoto , Eric Woo Hock Yong , Tsutomu Tom Yamashita
- 申请人： Bruce Lairson , Ching Jackie Tsoi , Wen Liu , Shigeto Hashimoto , Eric Woo Hock Yong , Tsutomu Tom Yamashita
- 主分类号： C23C1434
- IPC分类号： C23C1434
摘要：
A method for making a magnetic disk comprises forming first and second protective carbon layers on a magnetic layer. The first protective carbon layer is predominantly SP3 carbon. The second protective carbon layer comprises about 50% or less SP3 carbon. The second protective carbon layer is very thin, e.g. between 0.1 and 1.0 nm thick. A lubricant layer (e.g. a perfluoropolyether lubricant) is applied to the second protective carbon layer. The second protective carbon layer facilitates improved cooperation between lubricant and the disk.
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