Method and apparatus for controlling a magnetic field in a plasma chamber

    公开(公告)号:US10115566B2

    公开(公告)日:2018-10-30

    申请号:US15437757

    申请日:2017-02-21

    IPC分类号: H01J37/32

    摘要: Methods and apparatus for controlling a magnetic field in a plasma chamber are provided herein. In some embodiments, a process chamber liner may include a cylindrical body, an inner electromagnetic cosine-theta (cos θ) coil ring including a first plurality of inner coils embedded in the body and configured to generate a magnetic field in a first direction, and an outer electromagnetic cosine-theta (cos θ) coil ring including a second plurality of outer coils embedded in the body and configured to generate a magnetic field in a second direction orthogonal to the first direction, wherein the outer electromagnetic cos θ coil ring is disposed concentrically about the inner electromagnetic cos θ coil ring.

    System and method for selective coil excitation in inductively coupled plasma processing reactors

    公开(公告)号:US09659751B2

    公开(公告)日:2017-05-23

    申请号:US14341492

    申请日:2014-07-25

    IPC分类号: H01J7/24 H01J37/32

    摘要: Spatial distribution of RF power delivered to plasma in a processing chamber is controlled using an arrangement of primary and secondary inductors, wherein the current through the secondary inductors affects the spatial distribution of the plasma. The secondary inductors are configured to resonate at respectively different frequencies. A first secondary inductor is selectively excited to resonance, during a first time period within a duty cycle, by delivering power to a primary inductor at the resonant frequency of the first secondary inductor. A second secondary inductor is selectively excited to resonance, during a second time period within a duty cycle, by delivering power to a primary inductor at the resonant frequency of the second secondary inductor. The secondary inductors are isolated from one another and terminated such that substantially all current that passes through them and into the plasma results from mutual inductance with a primary inductor.

    Method and apparatus for controlling a magnetic field in a plasma chamber

    公开(公告)号:US09613783B2

    公开(公告)日:2017-04-04

    申请号:US14339990

    申请日:2014-07-24

    IPC分类号: H01J37/32

    CPC分类号: H01J37/3211 H01J37/32669

    摘要: Methods and apparatus for controlling a magnetic field in a plasma chamber are provided herein. In some embodiments, a process chamber liner may include a cylindrical body, an inner electromagnetic cosine-theta (cos θ) coil ring including a first plurality of inner coils embedded in the body and configured to generate a magnetic field in a first direction, and an outer electromagnetic cosine-theta (cos θ) coil ring including a second plurality of outer coils embedded in the body and configured to generate a magnetic field in a second direction orthogonal to the first direction, wherein the outer electromagnetic cos θ coil ring is disposed concentrically about the inner electromagnetic cos θ coil ring.

    Deposition radial and edge profile tunability through independent control of TEOS flow

    公开(公告)号:US11017986B2

    公开(公告)日:2021-05-25

    申请号:US16001264

    申请日:2018-06-06

    摘要: Disclosed embodiments generally relate to a processing chamber that includes a perforated lid, a gas blocker disposed on the perforated lid, and a substrate support disposed below the perforated lid. The gas blocker includes a gas manifold, a central gas channel formed in the gas manifold, a first gas distribution plate that includes inner and outer trenches surrounding the central gas channel, and a first and second gas channels formed in the gas manifold. The first gas channel is in fluid communication with a first gas source and the inner trench, and the second gas channel is in fluid communication with the first gas source and the outer trench and a second gas distribution plate The first gas channel is in further fluid communication with a third gas distribution plate that is disposed below the second gas distribution plate, and a plurality of pass-through channels that are disposed between the second gas distribution plate and the third gas distribution plate. The second gas distribution plate includes a plurality of through holes formed through a bottom of the second gas distribution plate as well as a central opening in fluid communication with the central gas channel The second gas distribution plate further includes a recess region formed in a top surface of the second gas distribution plate, and the recess region surrounds the central opening.

    MAGNET CONFIGURATIONS FOR RADIAL UNIFORMITY TUNING OF ICP PLASMAS
    9.
    发明申请
    MAGNET CONFIGURATIONS FOR RADIAL UNIFORMITY TUNING OF ICP PLASMAS 审中-公开
    ICP等离子体径向均匀调谐的磁铁配置

    公开(公告)号:US20160225590A1

    公开(公告)日:2016-08-04

    申请号:US14985688

    申请日:2015-12-31

    IPC分类号: H01J37/32

    CPC分类号: H01J37/32669 H01J37/3211

    摘要: Embodiments described herein generally relate to plasma process apparatus. In one embodiment, the plasma process apparatus includes a plasma source assembly. The plasma source assembly may include a first coil, a second coil surrounding the first coil, and a magnetic device disposed outside the first and inside the second coil. The magnet enables additional tuning which improves uniformity control of the processes on the substrate.

    摘要翻译: 本文描述的实施例一般涉及等离子体处理装置。 在一个实施例中,等离子体处理装置包括等离子体源组件。 等离子体源组件可以包括第一线圈,围绕第一线圈的第二线圈和设置在第二线圈的第一和内侧的磁性装置。 该磁体可实现额外的调谐,从而提高基板上工艺的均匀性控制。