High temperature vacuum seal
    4.
    发明授权

    公开(公告)号:US11479859B2

    公开(公告)日:2022-10-25

    申请号:US16844601

    申请日:2020-04-09

    摘要: Gas distribution assemblies and process chamber comprising gas distribution assemblies are described. The gas distribution assembly includes a gas distribution plate, a lid and a primary O-ring. The primary O-ring is positioned between a purge channel of a first contact surface of the gas distribution plate and a second contact surface. Methods of sealing a process chamber using the disclosed gas distribution assemblies are described.

    Methods and apparatus to reduce pressure fluctuations in an ampoule of a chemical delivery system

    公开(公告)号:US11566327B2

    公开(公告)日:2023-01-31

    申请号:US17100249

    申请日:2020-11-20

    IPC分类号: C23C16/40 C23C16/455

    摘要: Methods and apparatus to reduce pressure fluctuations in a chemical delivery system for a process chamber are provided herein. In some embodiments, a chemical delivery system for a process chamber, includes: a carrier gas supply; an ampoule fluidly coupled to the carrier gas supply via a first supply line, wherein the ampoule is configured to supply one or more process gases to the process chamber via a second supply line; an inlet valve disposed in line with the first supply line to control a flow of a carrier gas from the carrier gas supply to the ampoule; and a first control valve disposed in line with a pressure regulation line, wherein the pressure regulation line is fluidly coupled to the first supply line at a tee location between the carrier gas supply and the inlet valve.