- 专利标题: High coercivity magnetic recording medium comprising a sputter textured layer
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申请号: US09768357申请日: 2001-01-25
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公开(公告)号: US06509083B2公开(公告)日: 2003-01-21
- 发明人: Xing Song , Ga-Lane Chen , Charles Leu , Qixu Chen
- 申请人: Xing Song , Ga-Lane Chen , Charles Leu , Qixu Chen
- 主分类号: G11B566
- IPC分类号: G11B566
摘要:
Reproducible texturing of magnetic recording media is enhanced by sputtering a buffer layer, such as Ni-P, on a nonmagnetic substrate, prior to sputtering a textured bump layer. A magnetic recording medium comprising a sputter textured metal layer and high coercivity is achieved by employing an underlayer, such as NiAl or FeAl, preferably a composite underlayer containing a chromium or chromium-alloy layer and a NiAl layer, on the sputter textured layer. Advantageously, the buffer layer, underlayer, textured bump layer, magnetic layer and carbon overcoat can be sputter deposited in a single apparatus.
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