HIGH TEMPERATURE CHUCK FOR PLASMA PROCESSING SYSTEMS

    公开(公告)号:US20170309509A1

    公开(公告)日:2017-10-26

    申请号:US15642977

    申请日:2017-07-06

    CPC classification number: H01L21/6833 H01L21/3065 H01L21/67103

    Abstract: A wafer chuck assembly includes a puck, a shaft and a base. An insulating material defines a top surface of the puck, a heater element is embedded within the insulating material, and a conductive plate lies beneath the insulating material. The shaft includes a housing coupled with the plate, and electrical connectors for the heater elements and the electrodes. A conductive base housing couples with the shaft housing, and the connectors pass through a terminal block within the base housing. A method of plasma processing includes loading a workpiece onto a chuck having an insulating top surface, providing a DC voltage differential across two electrodes within the top surface, heating the chuck by passing current through heater elements, providing process gases in a chamber surrounding the chuck, and providing an RF voltage between a conductive plate beneath the chuck, and one or more walls of the chamber.

    Radial waveguide systems and methods for post-match control of microwaves
    15.
    发明授权
    Radial waveguide systems and methods for post-match control of microwaves 有权
    用于微波后匹配控制的径向波导系统和方法

    公开(公告)号:US09564296B2

    公开(公告)日:2017-02-07

    申请号:US15063849

    申请日:2016-03-08

    Abstract: A system provides post-match control of microwaves in a radial waveguide. The system includes the radial waveguide, and a signal generator that provides first and second microwave signals that have a common frequency. The signal generator adjusts a phase offset between the first and second signals in response to a correction signal. The system also includes first and second electronics sets, each of which amplifies a respective one of the first and second microwave signals. The system transmits the amplified, first and second microwave signals into the radial waveguide, and matches an impedance of the amplified microwave signals to an impedance presented by the waveguide. The system also includes at least two monitoring antennas disposed within the waveguide. A signal controller receives analog signals from the monitoring antennas, determines the digital correction signal based at least on the analog signals, and transmits the correction signal to the signal generator.

    Abstract translation: 系统提供径向波导中微波的后匹配控制。 该系统包括径向波导和提供具有共同频率的第一和第二微波信号的信号发生器。 信号发生器响应于校正信号来调节第一和第二信号之间的相位偏移。 该系统还包括第一和第二电子设备组,每个电子组件放大第一和第二微波信号中相应的一个。 该系统将放大的第一和第二微波信号传输到径向波导中,并将放大的微波信号的阻抗与由波导呈现的阻抗相匹配。 该系统还包括设置在波导内的至少两个监控天线。 信号控制器从监控天线接收模拟信号,至少基于模拟信号确定数字校正信号,并将校正信号发送到信号发生器。

    Dry-etch selectivity
    18.
    发明授权

    公开(公告)号:US09384997B2

    公开(公告)日:2016-07-05

    申请号:US14602835

    申请日:2015-01-22

    CPC classification number: H01L21/31116 H01J37/32357

    Abstract: A method of etching exposed patterned heterogeneous structures is described and includes a remote plasma etch formed from a reactive precursor. The plasma power is pulsed rather than left on continuously. Plasma effluents from the remote plasma are flowed into a substrate processing region where the plasma effluents selectively remove one material faster than another. The etch selectivity results from the pulsing of the plasma power to the remote plasma region, which has been found to suppress the number of ionically-charged species that reach the substrate. The etch selectivity may also result from the presence of an ion suppression element positioned between a portion of the remote plasma and the substrate processing region.

    Radial waveguide systems and methods for post-match control of microwaves
    19.
    发明授权
    Radial waveguide systems and methods for post-match control of microwaves 有权
    用于微波后匹配控制的径向波导系统和方法

    公开(公告)号:US09299537B2

    公开(公告)日:2016-03-29

    申请号:US14221132

    申请日:2014-03-20

    Abstract: A system provides post-match control of microwaves in a radial waveguide. The system includes the radial waveguide, and a signal generator that provides first and second microwave signals that have a common frequency. The signal generator adjusts a phase offset between the first and second signals in response to a correction signal. The system also includes first and second electronics sets, each of which amplifies a respective one of the first and second microwave signals. The system transmits the amplified, first and second microwave signals into the radial waveguide, and matches an impedance of the amplified microwave signals to an impedance presented by the waveguide. The system also includes at least two monitoring antennas disposed within the waveguide. A signal controller receives analog signals from the monitoring antennas, determines the digital correction signal based at least on the analog signals, and transmits the correction signal to the signal generator.

    Abstract translation: 系统提供径向波导中微波的后匹配控制。 该系统包括径向波导和提供具有共同频率的第一和第二微波信号的信号发生器。 信号发生器响应于校正信号来调节第一和第二信号之间的相位偏移。 该系统还包括第一和第二电子设备组,每个电子组件放大第一和第二微波信号中相应的一个。 该系统将放大的第一和第二微波信号传输到径向波导中,并将放大的微波信号的阻抗与由波导呈现的阻抗相匹配。 该系统还包括设置在波导内的至少两个监控天线。 信号控制器从监控天线接收模拟信号,至少基于模拟信号确定数字校正信号,并将校正信号发送到信号发生器。

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