发明名称 POLISHING PAD
摘要 <p>A polishing pad (for example, polishing pad 305) for use in polarization of a semiconductor wafer (for example, semiconductor wafer 420), the polishing pad 305 featuring a plurality of different polishing surfaces, depending upon the direction of the movement of the polishing pad 305. The polishing pad 305 may take the form of a polishing disc or a polishing belt. The polarization of the semiconductor wafer 420 can then take place at a fewer number of polishing stations, thereby reducing the amount of time needed and reducing the probability of damage to the semiconductor wafer 420.</p>
申请公布号 EP1536920(B1) 申请公布日期 2006.07.12
申请号 EP20030794879 申请日期 2003.08.14
申请人 INFINEON TECHNOLOGIES AG 发明人 NAUJOK, MARKUS
分类号 B24B57/02;B24B21/00;B24B37/24;B24D13/14;H01L21/304 主分类号 B24B57/02
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