发明授权
- 专利标题: Apparatus and methods for chemical-mechanical polishing of semiconductor wafers
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申请号: US10061783申请日: 2002-02-01
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公开(公告)号: US06518188B2公开(公告)日: 2003-02-11
- 发明人: Lee Melbourne Cook , David B. James , William D. Budinger
- 申请人: Lee Melbourne Cook , David B. James , William D. Budinger
- 主分类号: H01L2100
- IPC分类号: H01L2100
摘要:
An apparatus and method for polishing the surface of a semiconductor wafer is provided in which the polishing pad has on its surface a multiplicity of nanoasperities which are particles having an imputed radius (of curvature) of about 0.5 to about 0.1 microns and sufficient resiliency to permanently deform by less than 10% which contact the wafer surface in combination with a reactive liquid solution which may be recirculated, analyzed, adjusted, and from which soluble reaction products may be removed.
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