发明申请
US20070087227A1 Granular magnetic recording media with improved corrosion resistance by cap layer + pre-covercoat etching
审中-公开
颗粒磁记录介质通过盖层+预涂层蚀刻具有改善的耐腐蚀性
- 专利标题： Granular magnetic recording media with improved corrosion resistance by cap layer + pre-covercoat etching
- 专利标题（中）： 颗粒磁记录介质通过盖层+预涂层蚀刻具有改善的耐腐蚀性
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申请号： US11249469申请日： 2005-10-14
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公开(公告)号： US20070087227A1公开(公告)日： 2007-04-19
- 发明人: Xiaoding Ma , Tom Nolan , Raj Thangaraj , Michael Stirniman , Samuel Harkness , Huan Tang , Jing Gui , Joel Weiss , Gary Rauch
- 申请人： Xiaoding Ma , Tom Nolan , Raj Thangaraj , Michael Stirniman , Samuel Harkness , Huan Tang , Jing Gui , Joel Weiss , Gary Rauch
- 专利权人： SEAGATE TECHNOLOGY LLC
- 当前专利权人： SEAGATE TECHNOLOGY LLC
- 主分类号： G11B5/65
- IPC分类号： G11B5/65 ; C23C14/00
摘要：
A granular magnetic recording medium comprises a non-magnetic substrate having a surface, a layer stack on the substrate surface, including an outermost granular magnetic recording layer, a cap layer on the granular magnetic recording layer, having a sputter-etched outer surface, and a protective overcoat layer on the sputter-etched outer surface of the cap layer.