发明名称 ABRASIVE CLOTH AND POLISHING DEVICE PROVIDED WITH SAME
摘要 PURPOSE: To provide an abrasive cloth with which can be easily corrected non-uniformity of polishing can be polished a polishing object with an objective part emphasized. CONSTITUTION: In an abrasive cloth 4 provided on a turn table 1 brought into contact with a polishing object held to a top ring to polish a surface of the polishing object, a region 4a having an elastic coefficient different from that in the periphery is formed in a contact surface with the polishing object of the abrasive cloth 4, and in the case that the region 4a is brought into contact with a semiconductor wafer 2, length in a diametric direction of the turn table in a contact part of the region 4a is smaller than a diameter of the semiconductor wafer 2, to determine a position of the region 4a based on an acting region in the semiconductor wafer 2 of the region 4a.
申请公布号 JPH08309658(A) 申请公布日期 1996.11.26
申请号 JP19950142499 申请日期 1995.05.17
申请人 EBARA CORP 发明人 KIKUTA RITSUO;AOYAMA FUJIO;KATO KOJI;TAKAHASHI YOSHIMIZU
分类号 B24B37/20;B24B37/24;B24B41/047;B24D7/14;B24D13/14;H01L21/304 主分类号 B24B37/20
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