Patent ID: 9687953
Date: 2017-06-27
CPC Classifications: B23B,B24B

Claim:
1. A method comprising: securing a ceramic article within an abrasive flow system to define one or more flow paths from the abrasive flow system to at least one aperture or more apertures formed in the ceramic article, wherein the ceramic article is a component for a semiconductor processing chamber, the component being selected from a group consisting of a substrate support assembly, an electrostatic chuck, a gas distribution plate, a nozzle, a showerhead, a flow equalizer, a cooling base, a gas feeder, a liner kit, and a chamber lid, wherein the component comprises one or more of Y polishing the least one aperture of the ceramic article, wherein the polishing is based on flowing an abrasive media through the at least one aperture of the ceramic article, and wherein the abrasive media comprises a polymer base and a plurality of abrasive particles, wherein a viscosity of the abrasive media is between about 150,000 cP and about 750,000 cP.