发明授权
- 专利标题: Subsonic to supersonic and ultrasonic conditioning of a polishing pad in a chemical mechanical polishing apparatus
- 专利标题(中): 在化学机械抛光装置中对抛光垫进行超音速和超声波调理
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申请号: US09211024申请日: 1998-12-14
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公开(公告)号: US06168502A公开(公告)日: 2001-01-02
- 发明人: Derryl D. J. Allman , John W. Gregory
- 申请人: Derryl D. J. Allman , John W. Gregory
- 主分类号: B24B100
- IPC分类号: B24B100
摘要:
The present invention provides a method and apparatus for conditioning a polishing pad in which slurry is directed under pressure at the polishing pad. Additionally, energy (i.e., ultrasonic energy) may be added to the slurry as it is directed towards the polishing pad, wherein embedded material in the polishing pad is removed or dislodged.
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