发明授权
US6013336A Procedure employing a diode-pumped laser for controllably texturing a
disk surface
失效
采用二极管泵浦激光器可控地纹理化磁盘表面的程序
- 专利标题: Procedure employing a diode-pumped laser for controllably texturing a disk surface
- 专利标题(中): 采用二极管泵浦激光器可控地纹理化磁盘表面的程序
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申请号: US4694申请日: 1998-01-08
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公开(公告)号: US6013336A公开(公告)日: 2000-01-11
- 发明人: Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
- 申请人: Peter Michael Baumgart , Wing Pun Leung , Thao Anh Nguyen , Andrew Ching Tam
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: B23K26/00
- IPC分类号: B23K26/00 ; G11B5/60 ; G11B5/62 ; G11B5/64 ; G11B5/82 ; G11B5/84 ; B05D3/06 ; B05D5/12
摘要:
A process for creating a "distant bump array" surface texture in a magnetic recording disk for reducing stiction and the disk so textured. The texturing process uses a tightly focused diode-pumped Nd:YLF or Nd:YVO.sub.4 or other solid-state laser that is pulsed with a 0.3-90 nanosecond pulse train to produce a plurality of distantly-spaced bumps in the disk surface. The bump creation process is highly controllable, permitting repeated creation of a preselected bump profile such as a smooth dimple or one with a central protrusion useful for low stiction without close spacing or elevated "roughness". Some bump profiles permit texturing of the data-storage region of the disk surface for low stiction without materially affecting magnetic data storage density.
公开/授权文献
- US5393955A Preparation of fullerenes and apparatus therefor 公开/授权日:1995-02-28
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