Patent ID: 6879382

Claim:
A substrate processing apparatus comprising: an alignment system disposed at a position such that information regarding a pattern arrangement of a substrate is obtained; a processing system disposed separately from the alignment system and used for processing a substrate; a first substrate stage which is able to support a substrate and move in an xy plane, the xy plane being a plane parallel to a direction of an arrangement between the alignment system and the processing system and a z axis being an axis perpendicular to the xy plane; a second substrate stage which is able to support a substrate and move in the xy plane; and at least three x-position measurement systems, each of which measures positions of the first and second substrate stages during movement between the processing system position and the alignment system position; at least three y-position measurement systems, each of which measures positions and rotations of the first and second substrate stages during movement between the processing system position and the alignment system position, wherein at least one of the y-position measurement systems is disposed at an opposite side of another one of the y-position measurement systems.