Microwave plasma source and plasma processing apparatus

    公开(公告)号:US10319567B2

    公开(公告)日:2019-06-11

    申请号:US15075670

    申请日:2016-03-21

    Abstract: A microwave plasma source for forming a surface wave plasma by radiating a microwave into a chamber of a plasma processing apparatus, which includes: a microwave output part for outputting the microwave; a microwave transmission part for transmitting the microwave; and a microwave radiation member for radiating the microwave into the chamber. The microwave transmission part includes a plurality of microwave introduction mechanisms circumferentially arranged in a peripheral portion of the microwave radiation member and configured to introduce the microwave into the microwave radiation member. The microwave radiation member includes a metal main body, a plurality of dielectric slow-wave members arranged in an overall annular shape in the vicinity of an arrangement surface of the main body, an annular dielectric microwave transmission member arranged in a microwave radiation surface of the main body, and a slot antenna part installed between the slow-wave members and the microwave transmission member.

    Microwave radiation antenna, microwave plasma source and plasma processing apparatus
    3.
    发明授权
    Microwave radiation antenna, microwave plasma source and plasma processing apparatus 有权
    微波辐射天线,微波等离子体源和等离子体处理装置

    公开(公告)号:US09548187B2

    公开(公告)日:2017-01-17

    申请号:US14095563

    申请日:2013-12-03

    CPC classification number: H01J37/3222 H01J37/32201

    Abstract: A microwave radiation antenna includes an antenna body having a microwave radiation surface; a processing gas inlet configured to introduce a processing gas into the antenna body; a gas diffusion space configured to diffuse the processing gas in the antenna body; a plurality of gas outlets provided in the antenna body and configured to discharge the processing gas into the chamber; a plurality of slots provided in the antenna body under a state where the slots are separated from the gas diffusion space and the gas outlets; and an annular dielectric member provided in the microwave radiation surface side of the antenna body to cover a slot formation region where the slots are formed. A metal surface wave is formed in the microwave radiation surface by the microwave radiated through the slots and the annular dielectric member and a surface wave plasma is generated by the metal surface wave.

    Abstract translation: 微波辐射天线包括具有微波辐射表面的天线体; 处理气体入口,被配置为将处理气体引入到天线体中; 气体扩散空间,其构造成将所述处理气体扩散到所述天线体中; 多个气体出口,其设置在所述天线体中并且被配置为将所述处理气体排出到所述室中; 在槽与气体扩散空间和气体出口分离的状态下设置在天线体中的多个槽; 以及设置在天线体的微波辐射面侧的环状电介质部件,以覆盖形成槽的槽形成区域。 通过微波辐射通过狭缝和环形电介质构成的微波辐射表面形成金属表面波,并通过金属表面波产生表面波等离子体。

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