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    • 3. 发明专利
    • Apparatus and method for chemico-mechanical polishing using polishing surface having ununiform strength
    • 使用具有分辨率强度的抛光表面进行化学机械抛光的装置和方法
    • JP2005138277A
    • 2005-06-02
    • JP2004310383
    • 2004-10-26
    • Samsung Electronics Co Ltd三星電子株式会社
    • YUN HYUN JOOBOO JAE-PHILLIM YOUNG-SAM
    • B24B37/20B24B37/24B24D13/14H01L21/304B24B37/00
    • B24B37/26
    • PROBLEM TO BE SOLVED: To provide an apparatus and method for chemico-mechanical polishing, by which a substantially uniform polished profile is obtained by polishing a wafer such that wear may uniformly occur on the portion of a pad to be brought into contact with the wafer. SOLUTION: The chemico-mechanical polishing apparatus includes a platen, a polishing pad attached to the surface of the platen, and a polishing head formed so as to hold and rotate the wafer during pushing the surface of the wafer rotating with respect to the polishing pad. A first portion of the polishing pad cooperating with the polishing head in the neighborhood of the edge portion of the wafer has a strength furthermore lower than a second portion of the polishing pad in contact with the portion on the surface of the wafer. For example, the polishing pad and/or the platen may have a recessed portion in the neighborhood of a travelling trajectory of the portion of the polishing head which supports the edge portion of the wafer, or may have other cushioning structures. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于化学机械抛光的装置和方法,通过该装置和方法通过抛光晶片获得基本均匀的抛光轮廓,使得磨损均匀地发生在待接触的垫的部分上 与晶圆。 解决方案:化学机械抛光装置包括压板,附着在压板表面的抛光垫,以及抛光头,其形成为在推动晶片表面期间保持和旋转晶片,所述表面相对于 抛光垫。 与晶片边缘部分附近的抛光头配合的抛光垫的第一部分的强度进一步低于与晶片表面上的部分接触的抛光垫的第二部分。 例如,抛光垫和/或压板可以在支撑晶片的边缘部分的抛光头部分的行进轨迹附近具有凹部,或者可以具有其它缓冲结构。 版权所有(C)2005,JPO&NCIPI