Patent ID: 11908662
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. An apparatus, comprising:
a support pedestal having a support surface;
a conductive mesh disposed in the support pedestal;
a faceplate disposed opposite the support surface;
a process volume defined at least partially by the support pedestal and the faceplate;
a first portion of a grounding bowl having an annular shape and surrounding the support pedestal opposite the process volume;
a second portion of the grounding bowl disposed radially outward of the first portion and configured to move selectively into and out of contact with a pumping plate;
an annular liner surrounding the support pedestal and at least a portion of the first portion of the grounding bowl, the annular liner disposed in a recess of the pumping plate facing the process volume; and
a phase control circuit coupled to the faceplate and the conductive mesh.