Patent ID: 8982321
Filing Date: 2015-03-17
Classification: G03F

Abstract:
1. An exposure method for forming a different exposure pattern on each of a plurality of exposure areas set on a subject to be exposed in a conveying direction of the subject to be exposed at a predetermined interval while continuously conveying the subject to be exposed in one direction at a predetermined speed, the exposure method comprising: using one mask pattern group of a photomask in which a plurality of types of mask pattern groups corresponding to each exposure pattern is arranged and formed in the conveying direction of the subject to be exposed at an interval which is the same as the predetermined interval, and performing exposure on one exposure area of the subject to be exposed which is moving while the photomask is stopped, and when a rear end portion of the one exposure area in the conveying direction of the subject to be exposed is aligned with a rear end portion of the one mask pattern group in the same direction, moving the photomask in synchronization with the movement of the subject to be exposed to switch from the one mask pattern group to another mask pattern group; and stopping the movement of the photomask and performing exposure on the following exposure area of the moving subject to be exposed by using the another mask pattern group when the switching from the one mask pattern group of the photomask to the another mask pattern group is completed.