Patent ID: 9733578
Date: 2017-08-15
CPC Classifications: G03F

Claim:
1. A measurement apparatus that includes a movable stage and measures a position of a mark moved with the stage, the apparatus comprising: an imaging device including a plurality of pixels arranged at a pitch and configured to image the mark via the plurality of pixels; a driving device configured to change a relative position between the stage and the imaging device; a measurement device configured to measure the relative position; and a processor configured to obtain the position of the mark based on a plurality of images respectively obtained by the imaging device at a plurality of relative positions between the stage and the imaging device that are different from each other and associated with the pitch, wherein the processor is configured to obtain, based on a deviation between a measured relative position where the mark has been imaged by the imaging device and a first target relative position with respect to one of the plurality of relative positions, a second target relative position where the mark is to be imaged by the imaging device with respect to another of the plurality of relative positions.