发明名称 Method For Polishing Semiconductor Wafers By Means Of Simultaneous Double-Side Polishing
摘要 <p>A method of polishing a semiconductor wafer includes simultaneous double-side polishing the wafer in a gap of a polishing device between a lower polishing plate covered with a lower polishing pad and upper polishing plate covered with an upper polishing pad while supplying a polishing agent. A first of the upper and lower polishing pads is dressed using a dressing tool. The dressing tool is mounted in the gap so that it extends from the inner edge to the outer edge of the first polishing pad. The distance between the dressing tool and a second of the upper and lower polishing pads at the inner edge of the second polishing pad differs from a corresponding distance at the outer edge of the second polishing pad. After the dressing, the at least one semiconductor wafer in the gap is polished.</p>
申请公布号 SG10201401250Y(A) 申请公布日期 2014.11.27
申请号 SG10201401250Y 申请日期 2014.04.04
申请人 SILTRONIC AG 发明人 RAINER BAUMANN;JOHANNES STAUDHAMMER;ALEXANDER HEILMAIER;LESZEK MISTUR;DR. KLAUS RÖTTGER
分类号 主分类号
代理机构 代理人
主权项
地址
您可能感兴趣的专利