- 专利标题: Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the same
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申请号: US10790803申请日: 2004-03-03
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公开(公告)号: US07153546B2公开(公告)日: 2006-12-26
- 发明人: Kiwamu Tanahashi , Atsushi Kikugawa , Noboru Shimizu , Yukio Honda , Yuzuru Hosoe
- 申请人: Kiwamu Tanahashi , Atsushi Kikugawa , Noboru Shimizu , Yukio Honda , Yuzuru Hosoe
- 申请人地址: JP Kanagawa-ken
- 专利权人: Hitachi Global Storage Technologies Japan, Ltd.
- 当前专利权人: Hitachi Global Storage Technologies Japan, Ltd.
- 当前专利权人地址: JP Kanagawa-ken
- 代理机构: Reed Smith LLP
- 代理商 Stanley P. Fisher, Esq.; Juan Carlos A. Marquez, Esq.
- 优先权: JP2001-143637 20010514
- 主分类号: H05B6/00
- IPC分类号: H05B6/00
摘要:
Provided are a double-layer perpendicular magnetic recording medium having a high medium S/N at an areal recording density of 50 Gbits or more per square inch, and a magnetic storage apparatus having excellent reliability with a low error rate. The perpendicular magnetic recording medium is formed by sequentially laminating a domain control layer, an amorphous soft magnetic underlayer, an intermediate layer, and a perpendicular recording layer on a substrate. The domain control layer is a triple-layer film formed by laminating a first polycrystalline soft magnetic layer, a disordered antiferromagnetic layer, and a second polycrystalline soft magnetic layer from a substrate side.
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