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    • 6. 发明授权
    • Determining high frequency operating parameters in a plasma system
    • 确定等离子体系统中的高频工作参数
    • US08643279B2
    • 2014-02-04
    • US12692246
    • 2010-01-22
    • Thomas KirchmeierGerd Hintz
    • Thomas KirchmeierGerd Hintz
    • H05B37/00
    • G01R21/06G01R23/02H01J37/32045H02M7/003H02M7/5383H03H7/40H05B41/2806H05H1/46Y02B20/22
    • Determining a high frequency operating parameter in a plasma system including a plasma power supply device coupled to a plasma load using a hybrid coupler having four ports is accomplished by: generating two high frequency source signals of identical frequency, the signals phase shifted by 90° with respect to one another; generating a high frequency output signal by combining the high frequency source signals in the hybrid coupler; transmitting the high frequency output signal to the plasma load; detecting two or more signals, each signal corresponding to a respective port of the hybrid coupler and related to an amplitude of a high frequency signal present at the respective port; and based on an evaluation of the two or more signals, determining the high frequency operating parameter.
    • 使用具有四个端口的混合耦合器来确定等离子体系统中包括耦合到等离子体负载的等离子体电源装置的高频工作参数是通过以下方式实现的:产生两个相同频率的高频源信号,相位偏移90°, 相互尊重 通过组合混合耦合器中的高频源信号来产生高频输出信号; 将高频输出信号传输到等离子体负载; 检测两个或更多个信号,每个信号对应于混合耦合器的相应端口并且与存在于相应端口的高频信号的振幅有关; 并且基于对两个或更多个信号的评估,确定高频操作参数。