发明名称 Carrier head with multi-part flexible membrane
摘要 A carrier head for a chemical mechanical polishing apparatus includes a flexible membrane that applies a load to a substrate. A central portion of the flexible membrane is formed of a first material with a different rigidity than a second material that forms the annular portion of the flexible membrane.
申请公布号 US6450868(B1) 申请公布日期 2002.09.17
申请号 US20000535575 申请日期 2000.03.27
申请人 APPLIED MATERIALS, INC. 发明人 ZUNIGA STEVEN M.;CHEN HUNG CHIH;TSENG MING KUIE
分类号 B24B7/22;B24B37/00;B24B37/04;B24B41/06;F16J3/02;H01L21/304;(IPC1-7):B24B47/00 主分类号 B24B7/22
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