Patent ID: 8960235
Filing Date: 2015-02-24
Classification: C23C,F17D,H01J,Y10T

Abstract:
1. A gas dispersion apparatus to provide gases to a process chamber, comprising: a quartz body having a top, a ring coupled to a bottom surface of the top and a bottom plate having a plurality of gas dispersion holes coupled to the ring opposite the top; a plurality of quartz plates disposed between the top and the bottom plate, wherein the plurality of quartz plates are vertically arranged and spaced apart to form a plenum above each of the plurality of quartz plates and the bottom plate; a plurality of quartz tubes to couple the plenums to the plurality of dispersion holes, each of the plurality of quartz tubes having a first end disposed within one of the plenums and having a second end coupled to one of the plurality of dispersion holes; a plurality of conduits disposed through the top of the body, wherein each of the plurality of conduits is coupled to one of the plenums to provide a process gas to the plenums; and a gas feed to house the plurality of conduits and having a portion extending away from the quartz body such that the portion can be disposed within a through hole formed in a wall or ceiling of the process chamber.