Patent ID: 8108981
Filing Date: 2012-02-07
Classification: H01L,H02N,Y10T

Abstract:
1. A method of making an electrostatic chuck comprising: positioning a plate into a channel in a body to form a plenum; inserting a dielectric component into an opening in the plate, wherein the dielectric component comprises a dielectric tube comprising a first end, a second end and an axial through hole connecting the first end and the second end; positioning a dielectric end cap within the channel and opposite the axial through hole of the dielectric tube, wherein the second end of the dielectric tube is disposed inside of the dielectric end cap and wherein a portion of the end cap extends transversely over the second end of the dielectric tube while being spaced apart therefrom to form a gap; depositing a dielectric layer covering at least a portion of the body and at least a portion of the plate to form a support surface; polishing the dielectric layer to a specified thickness; and forming an opening through the dielectric layer and the dielectric component to define a passage between the support surface and the plenum, wherein the gap and the axial through hole form the passage.