Patent ID: 8398777

Claim:
A substrate processing system, comprising: a processing chamber; a pedestal disposed within the processing chamber; a lateral adjustment assembly coupled to the pedestal and disposed external to the processing chamber, the lateral adjustment assembly configured to change a lateral centrality of the pedestal, the lateral adjustment assembly comprising an adjustable support ring and three or more adjustment screws spaced nearly equally around an outer ring, the three or more adjustment screws each comprising a first external threaded region with a first thread pitch to mate each of the three or more adjustment screws with the outer ring and a second external threaded region with a second thread pitch different from the first thread pitch to mate each of the three or more adjustment screws with the adjustable support ring; and a vertical adjustment assembly coupled to the pedestal and disposed external to the processing chamber, the vertical adjustment assembly configured to change a tilt of the pedestal, wherein the lateral centrality of the pedestal and the tilt of the pedestal are adjusted independently.