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    • 6. 发明授权
    • Substrate processing apparatus and method of manufacturing semiconductor device
    • 基板处理装置及半导体装置的制造方法
    • US08471477B2
    • 2013-06-25
    • US13071227
    • 2011-03-24
    • Masayuki TomitaKatsunori FunakiShinji YashimaRyuichi Shimada
    • Masayuki TomitaKatsunori FunakiShinji YashimaRyuichi Shimada
    • H05B31/26
    • H01J37/32183H01J37/32091
    • A processing speed may be easily controlled over the wide range within the impedance variation range. A substrate processing apparatus includes: a processing chamber configured to process a substrate; a substrate support unit configured to support the substrate in the processing chamber; a processing gas supply unit configured to supply a processing gas into the processing chamber; a plasma generation electrode configured to convert the processing gas supplied into the processing chamber to be in a plasma state; a radio frequency power source configured to apply a radio frequency power to the plasma generation electrode; a variable impedance electrode installed at the substrate support unit and configured to control an electric potential of the substrate; a variable impedance mechanism connected to the variable impedance electrode and configured to vary an impedance according to a reciprocal of a peak-to-peak voltage of the plasma generation electrode; an exhaust unit configured to exhaust an atmosphere in the processing chamber; and a controller configured to control at least the variable impedance mechanism.
    • 可以在阻抗变化范围内的宽范围内容易地控制处理速度。 基板处理装置包括:处理室,被配置为处理基板; 衬底支撑单元,其构造成在所述处理室中支撑所述衬底; 处理气体供给单元,其构造成将处理气体供给到所述处理室中; 等离子体产生电极,被配置为将供应到处理室中的处理气体转换成等离子体状态; 射频电源,被配置为向所述等离子体产生电极施加射频电力; 可变阻抗电极,其安装在所述基板支撑单元处并且被配置为控制所述基板的电位; 连接到所述可变阻抗电极并被配置为根据所述等离子体产生电极的峰 - 峰电压的倒数改变阻抗的可变阻抗机构; 排气单元,其构造成排出处理室中的气氛; 以及控制器,被配置为至少控制所述可变阻抗机构。