发明名称 POLISHING PAD
摘要 An object of the present invention is to provide a polishing pad excellent in polishing rate and superior in longevity without generating center slow. Another object of the present invention is to provide a method of manufacturing a semiconductor device with the polishing pad. Disclosed is a polishing pad having a polishing layer consisting of a polyurethane foam having fine cells, wherein a high-molecular-weight polyol component that is a starting component of the polyurethane foam contains a hydrophobic high-molecular-weight polyol A having a number-average molecular weight of 550 to 800 and a hydrophobic high-molecular-weight polyol B having a number-average molecular weight of 950 to 1300 in an A/B ratio of from 10/90 to 50/50 by weight.
申请公布号 US2009104850(A1) 申请公布日期 2009.04.23
申请号 US20060065219 申请日期 2006.08.22
申请人 TOYO TIRE & RUBBER CO., LTD. 发明人 OGAWA KAZUYUKI;SHIMOMURA TETSUO;NAKAI YOSHIYUKI;NAKAMORI MASAHIKO;YAMADA TAKATOSHI
分类号 B24B1/00;B24B7/20;B24B37/20;B24B37/24;C08G18/65;H01L21/304 主分类号 B24B1/00
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