Patent ID: 7959735

Claim:
A substrate support adapted to support a substrate, the substrate support comprising: an electrically conductive body having a substrate support surface, a plurality of lift pin holes, and at least one insert hole; an electrically insulating coating disposed on the conductive body; a lift pin disposed within each of the plurality of lift pin holes; and at least one electrically insulating insert disposed within the at least one insert hole in the conductive body, wherein the at least one insert hole in the conductive body has a shallow recess on the conductive body substrate support surface and the at least one electrically insulating insert is disposed within the shallow recess on the conductive body substrate support surface, wherein the electrically insulating insert is not a lift pin, and wherein the at least one electrically insulating insert has a top surface that is substantially flush with or recessed from the substrate supporting surface of the electrically conductive body.