Patent ID: 7871470

Claim:
An apparatus for processing a substrate, comprising: a processing chamber; a substrate support for supporting a substrate within the processing chamber; and an assembly for positioning the substrate support, comprising: a clamp block; a yoke comprising at least one flange with a curved surface, the flange having a slot formed therethrough, wherein the yoke is coupled with the clamp block, the yoke positional along and rotational about a first axis relative to the clamp block; a base comprising a first surface adapted to support the substrate support and a curved second surface mating with the curved surface of the flange, wherein a first slot is formed through the curved second surface of the base, the base movable about a second axis orthogonal to the first axis; a first threaded member disposed through the slot in the flange and urging the yoke and base against each other along the axis of the first threaded member; a bearing assembly having a first carriage block and a second carriage block, the bearing assembly coupled with the clamp block; and an actuator coupled with at least one of the carriage blocks and adapted to control the linear position of the carriage blocks along the bearing assembly.