Apparatus for enhancing flow uniformity in a process chamber

    公开(公告)号:US11270898B2

    公开(公告)日:2022-03-08

    申请号:US16569593

    申请日:2019-09-12

    IPC分类号: H01L21/67

    摘要: Methods and apparatus for processing substrates are provided herein. In some embodiments, a shroud for controlling gas flow in a process chamber includes a closed walled body having an upper end and a lower end, the closed walled body defining a first opening of the shroud at the lower end and a second opening of the shroud at the upper end, wherein the second opening is offset from the first opening; and a top wall disposed atop a portion of the upper end of the closed walled body in a position above the first opening to define, together with a remaining portion of the upper end of the closed walled body, the second opening, wherein the shroud is configured to divert a gas flow from the second opening through the first opening.

    Pedestal assembly for a substrate processing chamber

    公开(公告)号:US11600507B2

    公开(公告)日:2023-03-07

    申请号:US17016030

    申请日:2020-09-09

    摘要: A pedestal assembly for a processing region and comprising first pins coupled to a substrate support, configured to mate with first terminals of an electrostatic chuck, and are configured to be coupled to a first power source. Each of the first pins comprises an interface element, and a compliance element supporting the interface element. Second pins are coupled to the substrate support, configured to mate with second terminals of the electrostatic chuck, and configured to couple to a second power source. Alignment elements are coupled to the substrate support and are configured to interface with centering elements of the electrostatic chuck. The flexible element is coupled to the substrate support, configured to interface with a passageway of the electrostatic chuck, and configured to be coupled to a gas source.