Patent ID: 9206512
Filing Date: 2015-12-08
Classification: C23C,F17D,Y10T

Abstract:
1. A gas distribution system for a process chamber, comprising: a body disposed within a through hole formed in a lid of the process chamber, the body comprising an opening configured to allow a flow of a gas through the body, wherein an outer surface of the body is disposed a first distance from an inner surface of the through hole to form a first thermal isolation gap between the outer surface of the body and the inner surface of the through hole, and wherein the first thermal isolation gap is unfilled; a flange disposed proximate a first end of the body, the flange extending outwardly from the body and having an outer dimension greater than an inner dimension of the through hole, wherein the flange supports the body of the gas distribution system on the lid of the process chamber; and a showerhead disposed proximate a second end of the body opposite the first end and extending outwardly from the body to overlap at least a portion of the lid of the process chamber, the showerhead configured to allow a flow of gas from the body to an inner volume of the process chamber, wherein an outer surface of a top portion of the showerhead is disposed a second distance from an inner surface of the lid of the process chamber to form a second thermal isolation gap between the outer surface of the top portion of the showerhead and the inner surface of the lid of the process chamber, and wherein the second thermal isolation gap is unfilled.