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    • 5. 发明授权
    • Apparatus and method for uniformly polishing a wafer
    • 用于均匀抛光晶片的装置和方法
    • US5562529A
    • 1996-10-08
    • US131949
    • 1993-10-08
    • Sadahiro KishiiYoshihiro ArimotoHiroshi HorieFumitoshi Sugimoto
    • Sadahiro KishiiYoshihiro ArimotoHiroshi HorieFumitoshi Sugimoto
    • B24B37/013B24B49/10B24B1/00B24B7/16
    • B24B37/013B24B49/10Y10S451/908
    • An apparatus and method for polishing a semiconductor wafer. A polisher includes a supporting plate having a conductive film and a polishing cloth formed on the conductive film of the supporting plate. The polishing cloth has a plurality of openings to expose the conductive film. A wafer holder has a conductive wafer holding surface to hold a semiconductor wafer having current detective patterns and an insulating film covering the current detective patterns. A polishing slurry supply device supplies a polishing slurry including ions to either the polishing cloth or the semiconductor wafer. A current detecting device, connected to the supporting plate and the wafer holder, detects a magnitude of a current flowing across the supporting plate and the wafer holder through the conductive wafer holding surface, the semiconductor wafer held by the wafer holder, the current detective patterns of the semiconductor wafer, the polishing slurry filled in the openings of the polishing cloth, and the conductive film.
    • 一种用于抛光半导体晶片的装置和方法。 抛光机包括具有导电膜的支撑板和形成在支撑板的导电膜上的抛光布。 抛光布具有多个开口以露出导电膜。 晶片保持器具有导电晶片保持表面,以保持具有电流检测图案的半导体晶片和覆盖当前检测图案的绝缘膜。 研磨浆料供给装置将包含离子的研磨浆料供给到研磨布或半导体晶片。 连接到支撑板和晶片保持器的电流检测装置检测通过导电晶片保持表面流过支撑板和晶片保持器的电流的大小,由晶片保持器保持的半导体晶片,当前的检测模式 的半导体晶片,填充在抛光布的开口中的抛光浆料和导电膜。