Patent ID: 8988656
Filing Date: 2015-03-24
Classification: G03F

Abstract:
1. An exposure apparatus which exposes a substrate to light, the apparatus comprising: a substrate stage configured to be movable upon holding the substrate; a position measurement unit configured to measure a position of the substrate stage; a structure configured to support the position measurement unit; a force measurement unit configured to measure a force that acts on the structure; a correction unit configured to correct a command for controlling the position of the substrate stage, based on the measurement value obtained by the force measurement unit, and a correction coefficient; and a calculation unit configured to calculate the correction coefficient using an evaluation substrate including a plurality of shot regions exposed without correction by the correction unit, the plurality of shot regions including a first shot region, a second shot region adjacent to the first shot region, and a third shot region adjacent to the second shot region, and each shot region including a first mark and a second mark, wherein the calculation unit calculates the correction coefficient based on position deviation information between the first mark in the first shot region, and the second mark in the second shot region, position deviation information between the first mark in the second shot region, and the second mark in the third shot region, and the measurement value obtained by the force measurement unit in exposing each shot region.