发明授权
- 专利标题: Apparatus and method for linear polishing
- 专利标题(中): 用于线性抛光的装置和方法
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申请号: US09546583申请日: 2000-04-11
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公开(公告)号: US06682396B1公开(公告)日: 2004-01-27
- 发明人: Tsu Shih , Chen-Hua Yu
- 申请人: Tsu Shih , Chen-Hua Yu
- 主分类号: B24B4900
- IPC分类号: B24B4900
摘要:
A linear polisher for polishing a substrate that always provides a fresh abrasive surface for polishing and a method for linear polishing a substrate are described. In the linear polisher, a length of a polishing pad is supported on a pair of rollers which are driven by a motor means for either intermittently or continuously advancing the pad during a polishing process. A vibration generator which is connected to the polishing pad through an adaptor provides lateral, or vibration in a transverse direction of the pad throughout the polishing process. The present invention novel linear polisher enables substantially constant removal rate to be achieved throughout the pad life of a polishing pad without deterioration such as that normally seen in a conventional rotary or linear CMP apparatus. Optionally, a rotatable substrate holder is utilized to further improve the polishing uniformity of the linear polishing apparatus.
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