发明名称 Apparatus and method for chemical mechanical polishing
摘要 When a polishing target film on a wafer is pressed against and contacted with a polishing pad to be subjected to CMP polishing, the wafer is supported by a backing plate through a contact pressure adjusting section. The surface of the adjusting section is worked to have a high region corresponding to a high region of the polished surface of the polishing target film and to have a low region corresponding to a low region of the polished surface thereof in order to adjust the contact pressure for contacting the polished surface with the polishing pad in accordance with the difference in the height of the polished surface. Accordingly, the polished surface of the polishing target film can uniformly planarized.
申请公布号 US6350186(B1) 申请公布日期 2002.02.26
申请号 US19990444358 申请日期 1999.11.18
申请人 NEC CORPORATION 发明人 TSUCHIYA YASUAKI
分类号 B24B37/00;B24B37/005;B24B37/04;B24B37/30;B24B41/06;B24B49/16;H01L21/304;(IPC1-7):B24B7/00 主分类号 B24B37/00
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