Clean isolation valve for reduced dead volume

    公开(公告)号:US11479857B2

    公开(公告)日:2022-10-25

    申请号:US17025294

    申请日:2020-09-18

    Abstract: Gas distribution apparatus, processing chambers and methods using a dead volume-free valve are described. The valve has a first inlet line with upstream and downstream ends and a second inlet line with a downstream end that connects to the first inlet line. A sealing surface at the downstream end of the second inlet line separates the first inlet line from the second inlet line preventing fluid communication between the first inlet line and the second inlet line.

    Pedestal heater for Spatial Multi-Wafer Processing Tool

    公开(公告)号:US20220319899A1

    公开(公告)日:2022-10-06

    申请号:US17845230

    申请日:2022-06-21

    Abstract: Substrate supports comprising a top plate positioned on a shaft are described. The top plate including a primary heating element a first depth from the surface of the top plate, a inner zone heating element a second depth from the surface of the top plate and an outer zone heating element a third depth from the surface of the top plate. Substrate support assemblies comprising a plurality of substrate supports and methods of processing a substrate are also disclosed.

    Showerhead assembly with multiple fluid delivery zones

    公开(公告)号:US11293099B2

    公开(公告)日:2022-04-05

    申请号:US16867307

    申请日:2020-05-05

    Abstract: The present disclosure relates to a semiconductor processing apparatus. The processing chamber includes a chamber body and lid defining an interior volume, a substrate support disposed in the interior volume and a showerhead assembly disposed between the lid and the substrate support. The showerhead assembly includes a faceplate configured to deliver a process gas to a processing region defined between the showerhead assembly and the substrate support and an underplate positioned above the faceplate, defining a first plenum between the lid and the underplate, the having multiple zones, wherein each zone has a plurality of openings that are configured to pass an amount of inert gas from the first plenum into a second plenum defined between the faceplate and the underplate, in fluid communication with the plurality of openings of each zone such that the inert gas mixes with the process gas before exiting the showerhead assembly.

    Apparatus and Methods for Motor Shaft and Heater Leveling

    公开(公告)号:US20210087689A1

    公开(公告)日:2021-03-25

    申请号:US17024946

    申请日:2020-09-18

    Abstract: Process chambers and methods for leveling a motor shaft and substrate support plane are described. The process chamber includes a motor shaft connected to the process chamber with a plurality of motor bolts. A first plurality of sensors is arranged at about the same radial distance from the rotational axis and at different angular positions relative to the rotational axis and a second plurality of sensors are arranged to measure the support plane. An angle-dependent motor leveling profile is determined and shim values for the motor bolts are determined to level the motor shaft. The support plane is measured using the second plurality of sensors to level the support plane perpendicular to the motor shaft.

    Dithering Or Dynamic Offsets For Improved Uniformity

    公开(公告)号:US20210087681A1

    公开(公告)日:2021-03-25

    申请号:US17025025

    申请日:2020-09-18

    Abstract: Apparatus and methods to process one or more substrates are described. A plurality of process stations are arranged in a circular configuration around a rotational axis. A support assembly with a rotatable center base defining a rotational axis, at least two support arms extending from the center base and heaters on each of the support arms is positioned adjacent the processing stations so that the heaters can be moved amongst the various process stations to perform one or more process condition. The support assembly configured to offset the position of the substrate with respect to the processing stations.

    In-Situ DC Plasma For Cleaning Pedestal Heater

    公开(公告)号:US20210086239A1

    公开(公告)日:2021-03-25

    申请号:US17024955

    申请日:2020-09-18

    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.

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