Patent ID: 11946140
Assignee: APPLIED MATERIALS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 14:
15. A substrate processing chamber, comprising:
an isolator comprising an inner edge that defines an open interior, wherein the isolator comprises an electrically insulating material;
an annular spacer positioned atop the isolator, wherein:
an inner portion of a bottom surface of the annular spacer protrudes below an outer portion of the bottom surface of the annular spacer such that a gap is formed between the outer portion of the bottom surface of the annular spacer and a top surface of the isolator; and
an inner edge of the outer portion is disposed radially outward from the inner edge of the isolator; and

a manifold seated atop the isolator and positioned within an interior of the annular spacer, wherein a top surface of the manifold is at a lower height than a top portion of the annular spacer.