发明授权
- 专利标题: Magnetic recording medium with laser-formed differential zone lubrication
- 专利标题(中): 带有激光成型差速器润滑的磁记录介质
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申请号: US09797986申请日: 2001-03-05
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公开(公告)号: US06416839B1公开(公告)日: 2002-07-09
- 发明人: Jialuo Jack Xuan , Chung-Yuang Shih , Xiaohua Shel Yang , Youming Liu , Vidya K. Gubbi
- 申请人: Jialuo Jack Xuan , Chung-Yuang Shih , Xiaohua Shel Yang , Youming Liu , Vidya K. Gubbi
- 主分类号: G11B582
- IPC分类号: G11B582
摘要:
Stiction failure of a magnetic recording medium is reduced by forming a lubricant topcoat having a first thickness over the landing zone greater than a second thickness over the data zone, with a sharp transition step having an angle of at least about 70° with respect to a line perpendicular to the surface. Embodiments include depositing a lubricant topcoat at a substantially uniform thickness and reducing the thickness of the lubricant topcoat over the data zone by about 20% to about 80% employing a laser light beam to volatilize the lubricant.
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