发明申请
US20070281483A1 COMPOSITIONS FOR CHEMICAL MECHANICAL POLISHING SILICA AND SILICON NITRIDE HAVING IMPROVED ENDPOINT DETECTION
失效
用于化学机械抛光的组合物具有改进的端点检测的二氧化硅和氮化硅
- 专利标题: COMPOSITIONS FOR CHEMICAL MECHANICAL POLISHING SILICA AND SILICON NITRIDE HAVING IMPROVED ENDPOINT DETECTION
- 专利标题(中): 用于化学机械抛光的组合物具有改进的端点检测的二氧化硅和氮化硅
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申请号: US11446936申请日: 2006-06-05
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公开(公告)号: US20070281483A1公开(公告)日: 2007-12-06
- 发明人: Brian Mueller
- 申请人: Brian Mueller
- 主分类号: H01L21/461
- IPC分类号: H01L21/461
摘要:
The present invention provides a method of manufacturing a composition for polishing silica and silicon nitride on a semiconductor substrate. The method comprises ion-exchanging carboxylic acid polymer to reduce ammonia and combining by weight percent 0.01 to 5 of the ion-exchanged carboxylic acid polymer with 0.001 to 1 quaternary ammonium compound, 0.001 to 1 phthalic acid and salts thereof, 0.01 to 5 abrasive, and balance water.
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