发明名称 Polishing pad and polishing apparatus having the same
摘要 A polishing pad made of a flexible material includes a first major surface, a second major surface, and a large number of holes. The first major surface is urged by a rotatable polishing target member to polish a polishing target surface of the urged polishing target member by using a slurry. The second major surface is adhered to a rotatable platen. The large number of holes extend between the first and second major surfaces and serve as slurry reservoirs. The holes have a larger opening area on the second major surface than that on the first major surface. A polishing apparatus is also disclosed.
申请公布号 US5853317(A) 申请公布日期 1998.12.29
申请号 US19970881983 申请日期 1997.06.25
申请人 NEC CORPORATION 发明人 YAMAMOTO, YOSHIAKI
分类号 B24B37/00;B24B37/04;B24B37/20;B24B37/22;B24B37/26;B24D11/00;B24D13/12;B24D13/14;H01L21/304;(IPC1-7):B24B29/00 主分类号 B24B37/00
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