发明名称 Wafer carrier wear indicator
摘要 A wafer carrier for use in polishing disks. The wafer carrier includes a main body and an integral visual inspection wear indicator. The main body has at least one opening formed therein adapted to receive a disk. The visual inspection wear indicator provides a visual indication of when the main body has reached the end of its useful life. The inspection wear indicator may have several portions to incrementally identify the approximate wear stage, that is, the approximate remaining useful life.
申请公布号 US7008310(B2) 申请公布日期 2006.03.07
申请号 US20020210789 申请日期 2002.08.01
申请人 ENTEGRIS, INC. 发明人 ANDRES TODD E.
分类号 B24B19/00;B24B7/17;B24B41/06 主分类号 B24B19/00
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