METHODS AND APPARATUSES FOR CONTROLLING PLASMA IN A PLASMA PROCESSING CHAMBER
    1.
    发明申请
    METHODS AND APPARATUSES FOR CONTROLLING PLASMA IN A PLASMA PROCESSING CHAMBER 审中-公开
    用于控制等离子体处理室中的等离子体的方法和装置

    公开(公告)号:WO2013151812A1

    公开(公告)日:2013-10-10

    申请号:PCT/US2013/033609

    申请日:2013-03-22

    CPC classification number: H01J37/321 H01J37/3211

    Abstract: Methods and apparatus for controlling plasma in a plasma, processing system having at least an inductively coupled plasma (ICP) processing chamber are disclosed. The ICP chamber employs at least a first/center RF coil, a second/edge RF coii disposed concentrically with respect to the firsi/center RF coil, and a RF coil set having at least a third/mid. RF coil disposed concentrically with respect to the first/center RF coil and the second/edge RF coii in a manner such that the third/mid RF coil is disposed in between the first/center RF coil and the second/edge RF coil. During processing, RF currents in the same direction are provided to the first/center RF coil and the second/edge RF coil while RF current in the reverse direction (reiative to the direction of the currents provided to the first/center RF coil and the second'edge RF coil) is provided to the third/mid RF coil.

    Abstract translation: 公开了一种用于控制等离子体中的等离子体的方法和装置,具有至少一个电感耦合等离子体(ICP)处理室的处理系统。 ICP室采用至少第一/中心RF线圈,相对于冷杉/中心RF线圈同心设置的第二/边缘RF组件,以及具有至少三分之一/中间的RF线圈组。 RF线圈相对于第一/中心RF线圈和第二/边缘RF组件以与第一/中心RF线圈和第二/边缘RF线圈之间的第三/中间RF线圈布置的方式同心地布置。 在处理期间,向第一/中心RF线圈和第二/边缘RF线圈提供相同方向的RF电流,而反向的RF电流(反向提供给第一/中心RF线圈的电流的方向和 第二'RF射频线圈)提供给第三/中间RF线圈。

    PLASMA ETCH TOOL FOR HIGH ASPECT RATIO ETCHING

    公开(公告)号:WO2020185609A1

    公开(公告)日:2020-09-17

    申请号:PCT/US2020/021520

    申请日:2020-03-06

    Abstract: High aspect ratio features are etched using a plasma etching apparatus that can alternate between accelerating negative ions of reactive species at a low energy and accelerating positive ions of inert gas species at a high energy. The plasma etching apparatus can be divided into at least two regions that separate a plasma-generating space from an ionization space. Negative ions of the reactive species can be generated by electron attachment ionization in the ionization space when a plasma is ignited in the plasma-generating space. Positive ions of the inert gas species can be generated by Penning ionization in the ionization space when the plasma is quenched in the plasma-generating space.

    PLASMA DISCHARGE UNIFORMITY CONTROL USING MAGNETIC FIELDS

    公开(公告)号:WO2022060562A1

    公开(公告)日:2022-03-24

    申请号:PCT/US2021/048276

    申请日:2021-08-30

    Abstract: Methods, systems, apparatuses, and computer programs are presented for controlling plasma discharge uniformity using magnetic fields. A substrate processing apparatus includes a vacuum chamber with a processing zone for processing a substrate. The apparatus further includes a magnetic field sensor to detect a first signal representing an axial magnetic field and a second signal representing a radial magnetic field associated with the vacuum chamber. The apparatus includes at least two magnetic field sources to generate an axial supplemental magnetic field and a radial supplemental magnetic field through the processing zone of the vacuum chamber. The apparatus includes a magnetic field controller coupled to the magnetic field sensor and the at least two magnetic field sources. The magnetic field controller adjusts at least one characteristic of one or more of the axial supplemental magnetic field and the radial supplemental magnetic field based on the first signal and the second signal.

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