Patent ID: 9720332
Date: 2017-08-01
CPC Classifications: G03F

Claim:
1. An information calculation method to suppress exposure failure in an immersion exposure apparatus, the method comprising: calculating, using a processor, a first movement path to control movement of an object for exposure from a first shot region to a second shot region of the object, the object facing an optical member that emits exposure light via a projection region, the first movement path being calculated based at least on shot region information stored in a memory; storing the calculated first movement path in the memory; calculating, using the processor, liquid information regarding a position of a liquid on the object based on the calculated first movement path when moving the object; storing the calculated liquid information in the memory; calculating, using the processor, region information indicating an exposure region on the object based on the calculated liquid information, the liquid information satisfying a predetermined condition indicative of exposure failure in the exposure region indicated by the region information; storing the calculated region information in the memory; calculating, using the processor, a second movement path to control movement of the object for exposure from the first shot region to the second shot region, the second movement path being calculated based on the calculated region information, the second movement path being calculated by making the first movement path longer; and controlling movement of the object such that the object follows the second movement path and not the first movement path to thereby suppress exposure failure in the immersion exposure apparatus by moving the object such that only regions in which the liquid information does not satisfy the predetermined condition indicative of exposure failure pass through the projection region.