Patent ID: 7158233

Claim:
An exposure apparatus for exposing a substrate having an alignment mark to light, said apparatus comprising: a first scope configured to detect a first image of the alignment mark on the substrate at a first magnification, the alignment mark comprising a first mark usable for both coarse alignment measurement in a first direction and fine alignment measurement in the first direction, and a second mark usable for coarse alignment measurement in a second direction different from the first direction; a second scope configured to detect a second image of the alignment mark on the substrate at a second magnification higher than the first magnification; a processor configured to obtain a first position of the first mark in the first direction and a second position of the second mark in the second direction based on the first image, and to obtain a third position of the first mark in the first direction based on the second image; a stage configured to hold the substrate and to move; and a controller configured to control a position of said stage for said second scope to detect the second image based on the obtained first and second positions, and to control a position of said stage to expose the substrate to light based on the obtained third position.