发明名称 |
Multi-phase overcoats for magnetic discs |
摘要 |
A magnetic disc for use in a magnetic disc drive is provided. The magnetic disc includes a recording surface wherein the recording surface includes a dual phase carbon overcoat. The dual phase carbon overcoat includes an amorphous carbon film sputtered on a magnetic layer. A doped amorphous carbon film is sputtered on the amorphous carbon film. The dual phase carbon overcoat has demonstrated improved hardness, reduced stiction and superior corrosion resistance over the prior art. A method of manufacturing the magnetic disc is also provided. The method includes providing a sputtering apparatus having a process chamber, providing a partially manufactured magnetic disc having a magnetic layer thereon, placing the partially manufactured magnetic disc within the process chamber, sputtering an amorphous carbon film on the magnetic layer, and sputtering a doped amorphous carbon film on the amorphous carbon film. The process reduces throughput inefficiencies due to down time cleaning and avoids carbon induced damage to the discs.
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申请公布号 |
US5785825(A) |
申请公布日期 |
1998.07.28 |
申请号 |
US19950538124 |
申请日期 |
1995.10.02 |
申请人 |
SEAGATE TECHNOLOGY, INC. |
发明人 |
HWANG, KUO-HSING;CHEN, XIAOHUA;KHAZANOV, ALEXANDER BORIS;HAFID, ABDELLAH;TAN, STELLA;NGUYEN, QUY CUU |
分类号 |
G11B5/72;G11B5/84;(IPC1-7):C23C14/34 |
主分类号 |
G11B5/72 |
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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