Two piece electrode assembly with gap for plasma control

    公开(公告)号:US11915911B2

    公开(公告)日:2024-02-27

    申请号:US16915028

    申请日:2020-06-29

    CPC classification number: H01J37/32091 H01J37/04

    Abstract: An apparatus for distributing plasma products includes first and second electrodes that each include planar surfaces. The first electrode forms first apertures from a first planar surface to a second planar surface; the second electrode forms second apertures from the third planar surface to the fourth planar surface. The electrodes couple through one or more adjustable couplers such that the third planar surface is disposed adjacent to the second planar surface with a gap therebetween, the gap having a gap distance. Each of the adjustable couplers has a range of adjustment. The first and second apertures are arranged such that for at least one position within the ranges of adjustment, none of the first apertures aligns with any of the second apertures to form an open straight-line path extending through both the first and second electrodes.

    Methods and apparatus for processing a substrate

    公开(公告)号:US11361941B2

    公开(公告)日:2022-06-14

    申请号:US16906875

    申请日:2020-06-19

    Abstract: Methods and apparatus for processing a substrate are herein described. For example, a processing chamber for processing a substrate includes a chamber body defining a processing volume; a radio frequency (RF) power source configured to deliver RF energy to the processing volume for processing a substrate; a substrate support comprising an electrode; an AC power supply configured to supply power to the processing chamber; an RF filter circuit connected between the electrode and the AC power supply; and a controller configured to monitor an RF voltage at the RF filter circuit that is indirectly induced into the electrode by the RF power source during operation, and to determine a processing state in the processing volume based on the monitored RF voltage.

    High temperature chuck for plasma processing systems

    公开(公告)号:US09728437B2

    公开(公告)日:2017-08-08

    申请号:US14612472

    申请日:2015-02-03

    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.

    Two piece electrode assembly with gap for plasma control

    公开(公告)号:US10699879B2

    公开(公告)日:2020-06-30

    申请号:US15955588

    申请日:2018-04-17

    Abstract: An apparatus for distributing plasma products includes first and second electrodes that each include planar surfaces. The first electrode forms first apertures from a first planar surface to a second planar surface; the second electrode forms second apertures from the third planar surface to the fourth planar surface. The electrodes couple through one or more adjustable couplers such that the third planar surface is disposed adjacent to the second planar surface with a gap therebetween, the gap having a gap distance. Each of the adjustable couplers has a range of adjustment. The first and second apertures are arranged such that for at least one position within the ranges of adjustment, none of the first apertures aligns with any of the second apertures to form an open straight-line path extending through both the first and second electrodes, and the gap distance is between 0.005 inch and 0.050 inch.

    MAGNETIC INDUCTION PLASMA SOURCE FOR SEMICONDUCTOR PROCESSES AND EQUIPMENT

    公开(公告)号:US20190272999A1

    公开(公告)日:2019-09-05

    申请号:US15909812

    申请日:2018-03-01

    Abstract: Exemplary magnetic induction plasma systems for generating plasma products are provided. The magnetic induction plasma system may include a first plasma source including a plurality of first sections and a plurality of second sections arranged in an alternating manner and fluidly coupled with each other such that at least a portion of plasma products generated inside the first plasma source may circulate through at least one of the plurality of first sections and at least one of the plurality of second sections inside the first plasma source. Each of the plurality of second sections may include a dielectric material. The system may further include a plurality of first magnetic elements each of which may define a closed loop. Each of the plurality of second sections may define a plurality of recesses for receiving one of the plurality of first magnetic elements therein.

    OPTICAL EMISSION SPECTROSCOPY (OES) FOR REMOTE PLASMA MONITORING

    公开(公告)号:US20190259580A1

    公开(公告)日:2019-08-22

    申请号:US16400615

    申请日:2019-05-01

    Abstract: Methods and systems for etching substrates using a remote plasma are described. Remotely excited etchants are formed in a remote plasma and flowed through a showerhead into a substrate processing region to etch the substrate. Optical emission spectra are acquired from the substrate processing region just above the substrate. The optical emission spectra may be used to determine an endpoint of the etch, determine the etch rate or otherwise characterize the etch process. A weak plasma may be present in the substrate processing region. The weak plasma may have much lower intensity than the remote plasma. In cases where no bias plasma is used above the substrate in an etch process, a weak plasma may be ignited near a viewport disposed near the side of the substrate processing region to characterize the etchants.

    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.

    DUAL DISCHARGE MODES OPERATION FOR REMOTE PLASMA
    9.
    发明申请
    DUAL DISCHARGE MODES OPERATION FOR REMOTE PLASMA 有权
    双排放模式远程等离子体操作

    公开(公告)号:US20150060265A1

    公开(公告)日:2015-03-05

    申请号:US14468066

    申请日:2014-08-25

    Abstract: Embodiments of the present technology may include a method of processing a semiconductor substrate. The method may include providing the semiconductor substrate in a processing region. Additionally, the method may include flowing gas through a cavity defined by a powered electrode. The method may further include applying a negative voltage to the powered electrode. Also, the method may include striking a hollow cathode discharge in the cavity to form hollow cathode discharge effluents from the gas. The hollow cathode discharge effluents may then be flowed to the processing region through a plurality of apertures defined by electrically grounded electrode. The method may then include reacting the hollow cathode discharge effluents with the semiconductor substrate in the processing region.

    Abstract translation: 本技术的实施例可以包括处理半导体衬底的方法。 该方法可以包括在处理区域中提供半导体衬底。 另外,该方法可以包括使气体流过由动力电极限定的空腔。 该方法可以进一步包括向被动电极施加负电压。 此外,该方法可以包括在空腔中冲击空心阴极放电以从气体形成空心阴极排出流出物。 然后可以通过由电接地电极限定的多个孔将空心阴极排出流出物流动到处理区域。 该方法可以包括使空心阴极排出流体与处理区域中的半导体衬底反应。

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