发明名称 |
SiN overcoat for perpendicular magnetic recording media |
摘要 |
A SiON overcoat for use on magnetic media for magnetic recording. The SiON overcoat is deposited by pulsed DC sputtering while applying a negative DC bias. The SiON overcoat is especially useful on perpendicular magnetic recording media because of its ability to deposit thinly and evenly on a rough, granular high coercivity recording media while maintaining excellent corrosion protection properties. A SiON overcoat can be applied less than 3 nm thick while still maintaining excellent mechanical and corrosion protection. The overcoat also has a very high density and water contact angle.
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申请公布号 |
US7758982(B2) |
申请公布日期 |
2010.07.20 |
申请号 |
US20050218702 |
申请日期 |
2005.09.02 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
DAI QING;DO HOA VAN;XIAO MIN;YEN BING K |
分类号 |
G11B5/716 |
主分类号 |
G11B5/716 |
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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