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    • 4. 发明授权
    • Substrate processing equipment having mass flow controller
    • 具有质量流量控制器的基板加工设备
    • US07140384B2
    • 2006-11-28
    • US10869968
    • 2004-06-18
    • Sung-Ho KangSeog-Min LeeSung-Wook JungYong-Suk Kim
    • Sung-Ho KangSeog-Min LeeSung-Wook JungYong-Suk Kim
    • G05D7/06
    • G05D7/0652G01F1/6847G01F15/005Y10T137/7759Y10T137/7761Y10T137/87314Y10T137/87362Y10T137/88062
    • A mass flow controller includes a base having a first passage, an inlet portion for introducing fluid into the first passage, an outlet portion for releasing the fluid from the first passage, and a second passage branched from a first upstream portion of the first passage and connected to a second downstream portion of the first passage A mass flow sensor is connected to the first passage between the inlet portion of the base and the first portion of the first passage; A first valve is disposed in-line with the first passage between the first and second portions. The first valve controls the mass flow of the fluid passing through the first passage;. A second valve is disposed in-line with the second passage to opens/close the second passage. A valve controller compares the mass flow measured by the mass flow sensor to a standard flow, and then positions the first valve such that the measured mass flow corresponds to the standard flow.
    • 质量流量控制器包括具有第一通道的基座,用于将流体引入第一通道的入口部分,用于从第一通道释放流体的出口部分和从第一通道的第一上游部分分支的第二通道, 连接到第一通道A的第二下游部分质量流量传感器连接到基座的入口部分和第一通道的第一部分之间的第一通道; 第一阀与第一和第二部分之间的第一通道成一直线设置。 第一阀控制通过第一通道的流体的质量流量。 第二阀与第二通道成一直线设置以打开/关闭第二通道。 阀门控制器将由质量流量传感器测量的质量流量与标准流量进行比较,然后将第一阀门定位,使得测得的质量流量对应于标准流量。