发明名称 POLISHING PAD
摘要 PROBLEM TO BE SOLVED: To provide a good circuit pattern by preventing generation of variations in wiring film thickness in finishing of polishing and avoiding the reduction of the wiring sectional area caused by the lack of a wiring pattern. SOLUTION: In this polishing pad 1 provided with a pad body 2 having an upper layer member 3 to be pressed to and brought into contact with a semiconductor wafer W and a lower layer member 4 abutting on the upper layer member 3, and for rotationally polishing the semiconductor wafer W by dropping slurry onto the pad front surface 2a, many discharge holes 2b opening on the pad front surface 2a are provided on the pad body 2, many discharge passages 4a communicated with respective discharge holes 2b are provided, and respective discharge passages 4a are positioned below the upper layer member 3 and opened in the direction of the pad rotational surface.
申请公布号 JP2001150333(A) 申请公布日期 2001.06.05
申请号 JP19990338046 申请日期 1999.11.29
申请人 NEC CORP 发明人 SUGAI KAZUMI
分类号 B24B37/20;B24B37/22;B24B37/26;H01L21/304 主分类号 B24B37/20
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