Patent ID: 9285688
Filing Date: 2016-03-15
CPC Classification: G03F,H01L

Claim Text:
1. An exposure apparatus which exposes a substrate, the apparatus comprising: a stage configured to move upon holding the substrate; a stage control system configured to control the stage in accordance with a command value; a specifying unit configured to specify an exposure start time at which exposure on the substrate starts upon detecting exposure light illuminated on the substrate; and a main control system configured to calculate positions of the stage at a plurality of times in an exposure period for the substrate based on position information of the stage at an exposure start time specified by the specifying unit, obtain an average position of the stage in at least a partial period in the exposure period from the calculated positions of the stage at the plurality of times, and give a command value for matching the average position of the stage with a target position to the stage control system.