发明名称 Apparatus for polishing periphery of device wafer and polishing method
摘要 When a device wafer is chucked and is rotated about an axis thereof, arc-shaped work faces of first and second inclined-face-polishing members are brought into line-contact with inclined faces disposed at front and rear faces, respectively, of the device wafer, the arc-shaped work face of a peripheral-face-polishing member is brought into line-contact with a peripheral face of the device wafer, and a disc-shaped work face of a peripheral-edge-polishing member is brought into planar contact with the front face of the device wafer at a peripheral edge thereof, whereby the inclined faces, the peripheral face, and the peripheral edge are polished simultaneously by the respective polishing members. Thus, an unnecessary part of a metallic film is removed from the periphery of the device wafer.
申请公布号 US2002164930(A1) 申请公布日期 2002.11.07
申请号 US20020116327 申请日期 2002.04.04
申请人 HAKOMORI SHUNJI 发明人 HAKOMORI SHUNJI
分类号 B24B5/50;B24B7/20;B24B9/00;B24B9/06;H01L21/304;(IPC1-7):B24B1/00;B24B7/19 主分类号 B24B5/50
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