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    • 16. 发明申请
    • METHOD FOR THE DOUBLE-SIDE POLISHING OF A SEMICONDUCTOR WAFER
    • 半导体波形双面抛光方法
    • US20110244762A1
    • 2011-10-06
    • US13041477
    • 2011-03-07
    • Juergen SchwandnerThomas BuschhardtRoland Koppert
    • Juergen SchwandnerThomas BuschhardtRoland Koppert
    • B24B1/00
    • H01L21/02024B24B37/044B24B37/08
    • A method for double-side polishing of a semiconductor wafer includes situating the semiconductor wafer in a cutout of a carrier that is disposed in a working gap between an upper polishing plate covered by a first polishing pad and a lower polishing plate covered by a second polishing pad. The first and second polishing pads each include tiled square segments that are formed by an arrangement of channels on the pads, where the square segments of the first pad are larger than the segments of the second pad. The square segments of the polishing pads include abrasives. During polishing, the carrier is guided such that a portion of the wafer temporarily projects laterally outside of the working gap. A polishing agent with a pH that is variable is supplied during polishing at a pH in a range of 11 to 12.5 during a first step and at a pH of at least 13 during a second step.
    • 一种用于半导体晶片的双面抛光的方法包括将半导体晶片置于载体的切口中,所述载体的切口位于由第一抛光垫覆盖的上抛光板和被第二抛光覆盖的下抛光板之间的工作间隙中 垫。 第一和第二抛光垫各自包括通过焊盘上的通道布置形成的平铺方形区段,其中第一焊盘的正方形段大于第二焊盘的段。 抛光垫的方形片段包括磨料。 在抛光期间,载体被引导使得晶片的一部分临时突出到工作间隙外侧。 在第一步骤期间,在pH为11至12.5的范围内,在第二步骤期间,在至少13℃的pH下,在抛光期间提供pH可变的抛光剂。
    • 17. 发明申请
    • METHOD FOR POLISHING A SEMICONDUCTOR WAFER
    • 抛光半导体波长的方法
    • US20110097974A1
    • 2011-04-28
    • US12897063
    • 2010-10-04
    • Juergen SCHWANDNERThomas BUSCHHARDTRoland KOPPERT
    • Juergen SCHWANDNERThomas BUSCHHARDTRoland KOPPERT
    • B24B7/17B24B1/00B24B7/20
    • B24B1/00H01L21/02024
    • A method of polishing a semiconductor wafer using a holding system including a lined cutout the size of the semiconductor wafer that is fixed to a carrier. The method includes holding the semiconductor wafer in the cutout through adhesion of a first side of the semiconductor wafer to a bearing surface in the cutout and polishing a second side of the held semiconductor wafer using a polishing pad that is fixed on a polishing plate while introducing a polishing agent between the second side of the semiconductor wafer and the polishing pad, the polishing pad including fixedly bonded abrasive materials. The carrier is guided during polishing such that a portion of the second side of the semiconductor wafer temporarily projects beyond a lateral edge of a surface of the polishing pad.
    • 使用包括固定在载体上的半导体晶片的尺寸的衬里切口的保持系统来研磨半导体晶片的方法。 该方法包括:通过将半导体晶片的第一面与切口中的支承表面粘合而将半导体晶片保持在切口中,并且使用固定在抛光板上的抛光垫来抛光所保持的半导体晶片的第二面,同时引入 所述抛光剂在所述半导体晶片的所述第二面与所述抛光垫之间,所述抛光垫包括固定结合的磨料。 在抛光期间引导载体,使得半导体晶片的第二侧的一部分临时突出超过抛光垫的表面的侧边缘。