发明名称 METHOD FOR THE SIMULTANEOUS MATERIAL-REMOVING PROCESSING OF BOTH SIDES OF AT LEAST THREE SEMICONDUCTOR WAFERS
摘要 A method for the simultaneous material-removing processing of both sides of at least three semiconductor wafers includes providing a double-side processing apparatus including two rotating ring-shaped working disks and a rolling apparatus. The carriers are arranged in the double-side processing apparatus and the openings are disposed in the carriers so as to satisfy the inequality: R/e·sin(&pgr;/N*)−r/e−1≦̸1.2 where N* denotes a ratio of the round angle and an angle at which adjacent carriers are inserted into the rolling apparatus with the greatest distance with respect to one another, r denotes a radius of each opening for receiving a respective semiconductor wafer, e denotes a radius of a pitch circle around a midpoint of the carrier on which the opening is arranged, and R denotes a radius of the pitch circle on which the carriers move between the working disks by means of the rolling apparatus.
申请公布号 US2012156970(A1) 申请公布日期 2012.06.21
申请号 US201113313114 申请日期 2011.12.07
申请人 PIETSCH GEORG;SILTRONIC AG 发明人 PIETSCH GEORG
分类号 B24B1/00 主分类号 B24B1/00
代理机构 代理人
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