| 发明名称 |
SOFT UNDERLAYER HAVING A MULTILAYER STRUCTURE FOR HIGH AREAL DENSITY PERPENDICULAR RECORDING MEDIA |
| 摘要 |
According to one embodiment, a soft underlayer structure includes a coupling layer, at least one outer soft underlayer positioned above and below the coupling layer, and at least one inner soft underlayer positioned above and below the coupling layer between the coupling layer and the associated outer soft underlayer, where the inner soft underlayers have a saturation magnetic flux density and/or a thickness that is different than a saturation magnetic flux density and/or a thickness of the outer soft underlayers. |
| 申请公布号 |
US2015310884(A1) |
申请公布日期 |
2015.10.29 |
| 申请号 |
US201414265161 |
申请日期 |
2014.04.29 |
| 申请人 |
HGST Netherlands B.V. |
发明人 |
Arnoldussen Thomas C.;Chang Jack Jyh-Kau;Ghaderi Arien M.;Shi Zhupei |
| 分类号 |
G11B5/73;G11B21/08;G11B5/55 |
主分类号 |
G11B5/73 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A soft underlayer structure, comprising:
a coupling layer, at least one outer soft underlayer positioned above and below the coupling layer, and at least one inner soft underlayer positioned above and below the coupling layer between the coupling layer and the associated outer soft underlayer, wherein the inner soft underlayers have a saturation magnetic flux density and/or a thickness that is different than a saturation magnetic flux density and/or a thickness of the outer soft underlayers. |
| 地址 |
Amsterdam NL |
