发明名称 |
Magnetic thin film media with a bi-layer structure of CrTi/Nip |
摘要 |
A thin film magnetic media structure with a bi-layer structure of amorphous chromium titanium (CrTi) followed by an amorphous layer of nickel phosphorus (NiP) is disclosed. After the NiP has been deposited it is exposed to oxygen to form an oxidized surface. Preferably the underlayer is deposited directly onto the oxidized NiP surface. The bi-layer structure of CrTi/NiP promotes excellent in-plane crystallographic orientation in the cobalt alloy magnetic layer(s) and allows an ultra-thin chromium underlayer to be used which provides better control over grain size and distribution. When the CrTi/NiP bi-layer structure is combined with a circumferentially textured substrate, preferably glass, a high Mrt orientation ratio (OR) results.
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申请公布号 |
US6858331(B1) |
申请公布日期 |
2005.02.22 |
申请号 |
US20030651634 |
申请日期 |
2003.08.29 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS, B.V. |
发明人 |
BIAN XIAOPING;DOERNER MARY FRANCES;MIRZAMAANI MOHAMMAD S.;POLCYN ADAM;XIAO QI-FAN |
分类号 |
G11B5/738;G11B5/65;G11B5/73;G11B5/85;G11B5/851;(IPC1-7):G11B5/66;G11B5/70;B05D5/12;H01J1/00 |
主分类号 |
G11B5/738 |
代理机构 |
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