Patent ID: 8908153
Filing Date: 2014-12-09
Classification: G03F,G06F

Abstract:
1. A method of calculating a transmission cross coefficient in an exposure apparatus which projects an image of an object onto an image plane via a projection optical system, the method comprising the following steps being executed by a computer: a division step of dividing an effective light source formed on a pupil plane of the projection optical system into a plurality of point sources; a generation step of generating a plurality of shifted pupil functions by shifting a pupil function corresponding to each of the plurality of point sources by a shift amount in accordance with a position of each point source, the pupil function being a function describing a pupil of the project optical system; a defining step of defining a matrix by arranging each of the plurality of shifted pupil functions generated in the generation step in each row or each column of the matrix; and a calculation step of calculating the transmission cross coefficient based on the matrix defined in the defining step.