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    • 33. 发明授权
    • System and method for point of use delivery, control and mixing chemical and slurry for CMP/cleaning system
    • 用于CMP /清洁系统的使用点输送,控制和混合化学和浆料的系统和方法
    • US06732017B2
    • 2004-05-04
    • US10077831
    • 2002-02-15
    • Xuyen PhamTuan NguyenVien QuachRen Zhou
    • Xuyen PhamTuan NguyenVien QuachRen Zhou
    • G05B2100
    • G05D11/132
    • A chemical mechanical planarization (CMP) system includes a point of use chemical mixing system. The point of use chemical mixing system includes a first and a second pump, a first and a second flow sensor, a mixer and a controller. The first pump has an input coupled to a first chemical supply and the first flow sensor coupled to the output of the first pump. The second pump has an input coupled to a second chemical supply and the second flow sensor coupled to the output of the second pump. The mixer has inputs coupled to the output of the first and second flow sensors. The controller is configured to receive signals from the first and second flow sensors and to produce control signals for the first and second pumps and the mixer. The controller is further configured to cause a mixture of the first and second chemicals upon a demand from the CMP process.
    • 化学机械平面化(CMP)系统包括使用化学混合系统。 使用的化学混合系统包括第一和第二泵,第一和第二流量传感器,混合器和控制器。 第一泵具有耦合到第一化学品供应的输入和耦合到第一泵的输出的第一流量传感器。 第二泵具有耦合到第二化学品供应的输入端和耦合到第二泵的输出端的第二流量传感器。 混合器具有耦合到第一和第二流量传感器的输出的输入。 控制器被配置为从第一和第二流量传感器接收信号并且产生用于第一和第二泵和混合器的控制信号。 控制器还被配置成根据CMP工艺的要求引起第一和第二化学品的混合。