发明名称 Method for single sided polishing of a semiconductor wafer
摘要 A method for polishing a single side of a semiconductor wafer (31) is disclosed for improving wafer flatness. A protective layer (32) is formed on one side of the semiconductor wafer (31). The semiconductor wafer (31) is polished on both sides concurrently using double sided polishing equipment (38,41). The protective layer (32) prevents a surface (37) of the semiconductor wafer (31) from being polished while the other unprotected surface (36) is polished thereby producing a single sided polished wafer.
申请公布号 US5389579(A) 申请公布日期 1995.02.14
申请号 US19930043117 申请日期 1993.04.05
申请人 MOTOROLA, INC. 发明人 WELLS, RAYMOND C.
分类号 B24B37/04;(IPC1-7):H01L21/302;H01L21/60 主分类号 B24B37/04
代理机构 代理人
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