Patent ID: 7256869
Filing Date: 2007-08-14
Classification: G03F

Abstract:
1. An exposure apparatus which forms a pattern on an object, comprising: a first holding member which holds an object; a second holding member which holds an object; a driving system which independently moves the first and second holding members in a two-dimensional plane; an exposure portion, in which the first and second holding members are alternately provided so as to perform an exposure for the object held by each of the first and second holding members, including: an exposure optical system of which a first portion is arranged in a first direction parallel to the two-dimensional plane and of which a second portion is arranged in a second direction perpendicular to the two-dimensional plane, and which irradiates onto the object an exposure beam from the first portion via the second portion; and a first interferometer system which obtains positional information of one of the first and second holding members provided in the exposure portion; a measurement portion, in which the first and second holding members are alternately provided so as to perform a measurement for the objects held by the first and second holding members, respectively, including a measurement system which is arranged apart from the second portion of the exposure optical system with respect to the first direction, and a second interferometer system which obtains positional information of the other of the first and second holding members provided in the measurement portion; wherein each of the first and second holding members has a reflective surface used for the first and second interferometer systems; and the other of the first and second holding members in the measurement portion is provided in the exposure portion in exchange for the one of the first and second holding members after the measurement of the object held by the other of the first and second holding members.