Patent ID: 6641981
Filing Date: 2003-11-04
Classification: G03F

Abstract:
An exposure method of irradiating a mask on which a pattern is formed with an energy beam; and changing a positional relationship between an imaging plane of a projection optical system and a substrate in an optical axis direction of said projection optical system according to a predetermined procedure so that an irradiation area on a substrate surface irradiated with said energy beam through said projection optical system is always located in a range having a predetermined width in said optical axis direction and including said imaging plane, and a distribution of energy supplied onto said substrate surface in the optical axis direction becomes a desired distribution, thereby transferring said pattern onto said substrate, said method comprising:obtaining a plurality of energy distributions in the optical axis direction in accordance with a position on said substrate of said area and storing the plurality of energy distributions in advance; and transferring said pattern onto said substrate, wherein the distribution of energy is changed in accordance with the position on said substrate of said area based on said plurality of energy distributions stored in advance.