Patent ID: 9679751
Date: 2017-06-13
CPC Classifications: C23C,H01J,H01L

Claim:
1. A chamber filler kit comprising at least one chamber filler configured to be replaceably mounted in an inductively coupled plasma chamber having a vacuum outlet in a bottom wall and a cantilever chuck supported on a sidewall of the chamber, the at least one chamber filler is configured to provide a preselected lower chamber volume and conductance enabling a particular process to be carried out in the plasma chamber, the at least one chamber filler including a horizontally extending side opening which fits around a horizontal arm of the cantilever chuck and an inner frustoconical surface which is separated from an outer surface of the chuck by a clearance gap; wherein the at least one chamber filler has an outer wall configured to fit against a wall of the chamber; wherein the at least one chamber filler includes: a top filler having an outer wall configured to fit against the sidewall of the chamber, a frustoconical inner wall, the side opening extending from the inner wall to the outer wall, a horizontally planar upper end, and a horizontally planar lower end; a mid filler having an outer wall configured to fit against the sidewall of the chamber, an inner wall comprising a horizontally planar annular section extending between an upper concave section and a lower convex section, a horizontally planar upper end and a horizontally planar lower end, the upper end of the mid filler having the same cross section as the lower end of the top filler such that the inner surface of the mid filler mates with the inner surface of the top filler and the outer wall of the mid filler mates with the outer wall of the top filler; a bottom filler having an outer wall configured to fit against a bottom wall of the chamber, a cylindrical inner wall, a horizontally planar upper end and a horizontally planar lower end, the upper end of the bottom filler having the same cross section as the lower end of the mid filler such that the inner wall of the bottom filler mates with the inner wall of the mid filler and the outer wall of the bottom filler mates with the outer wall of the mid filler.