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    • 19. 发明授权
    • Control system for in-situ feeding back a polish profile
    • 用于原位反馈抛光轮廓的控制系统
    • US06706140B2
    • 2004-03-16
    • US09682486
    • 2001-09-07
    • Chia-Lin HsuShao-Chung HuTeng-Chun Tsai
    • Chia-Lin HsuShao-Chung HuTeng-Chun Tsai
    • B24B4900
    • B24B37/04B24B49/10B24B57/02H01L21/30625
    • A chemical mechanical polishing (CMP) machine has a polish platen, having at least a first ring-shaped region and a second ring-shaped region. A control system for in-situ feeding back a polish profile of the CMP machine has at least a first sensor and a second sensor, respectively installed in the first and the second ring-shaped regions, and a control unit electrically connected to the first sensor and the second sensor for comparing the polish rates of portions of the wafer over the first and the second ring-shaped regions, respectively, according to signals of the first and the second sensors, and adjusting amounts of a slurry supplied by first and second slurry pump valves, corresponding to the first and second ring-shaped regions, according to a predetermined process, or adjusting forces loaded to the first and second regions of the wafer according to the predetermined process.
    • 化学机械抛光(CMP)机器具有抛光台板,具有至少第一环形区域和第二环形区域。 用于原位反馈CMP机的抛光轮廓的控制系统具有分别安装在第一和第二环形区域中的至少第一传感器和第二传感器,以及电连接到第一传感器的控制单元 以及第二传感器,用于根据第一和第二传感器的信号分别比较第一和第二环形区域上的部分晶片的抛光速率,以及调节由第一和第二浆料供应的浆料的量 根据预定过程对应于第一和第二环形区域的泵阀,或根据预定过程加载到晶片的第一和第二区域的调节力。