Apparatus for exciting a plasma in a semiconductor wafer processing
system using a complex RF waveform
    11.
    发明授权
    Apparatus for exciting a plasma in a semiconductor wafer processing system using a complex RF waveform 失效
    在使用复射频波形的半导体晶片处理系统中激发等离子体的装置

    公开(公告)号:US6043607A

    公开(公告)日:2000-03-28

    申请号:US991749

    申请日:1997-12-16

    CPC classification number: H01J37/32082 H01J37/32165 H05H1/46

    Abstract: A method and apparatus for generating a complex waveform and coupling the waveform to a reaction chamber of a semiconductor wafer processing system using a power amplifier. Specifically, the apparatus includes a complex waveform generator coupled to a high-power amplifier. The high-power amplifier is coupled to one or more frequency selective matching networks which select bands of RF signal to be coupled to plasma excitation circuit within the semiconductor wafer processing system.

    Abstract translation: 一种用于产生复杂波形并将波形耦合到使用功率放大器的半导体晶片处理系统的反应室的方法和装置。 具体地,该装置包括耦合到大功率放大器的复合波形发生器。 高功率放大器耦合到一个或多个频率选择匹配网络,其选择要耦合到半导体晶片处理系统内的等离子体激励电路的RF信号频带。

    VHF/UHF reactor system
    14.
    发明授权
    VHF/UHF reactor system 失效
    VHF / UHF反应堆系统

    公开(公告)号:US5210466A

    公开(公告)日:1993-05-11

    申请号:US852826

    申请日:1992-03-13

    Abstract: A plasma processing reactor is disclosed which incorporates an integral co-axial transmission line structure that effects low loss, very short transmission line coupling of ac power to the plasma chamber and therefore permits the effective use of VHF/UHF frequencies for generating a plasma. The use of VHF/UHF frequencies within the range 50-800 megahertz provides commercially viable processing rates (separate and simultaneous etching and deposition) and substantial reduction in sheath voltages compared to conventional frequencies such as 13.56 MHz. As a result, the probability of damaging electrically sensitive small geometry devices is reduced.

    Abstract translation: 公开了一种等离子体处理反应器,其包括整体的同轴传输线结构,其将低功率损耗,非常短的传输线耦合到等离子体室,因此允许有效地使用VHF / UHF频率来产生等离子体。 在常规频率(如13.56 MHz)下,VHF / UHF频率在50-800兆赫兹范围内的使用提供了商业上可行的处理速率(分离和同步蚀刻和沉积)和皮套电压的显着降低。 结果,减少了电敏感小型几何装置的损坏概率。

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