Patent ID: 8754350

Claim:
An exposure method comprising the steps of: providing a mask having a first opening pattern in which a first plurality of openings have approximately the same size and are arranged in a first line at approximately the first same interval and a second opening pattern in which a second plurality of openings have approximately the same size and are arranged in a second line at approximately the second same interval; providing a substrate on a stage; irradiating a pair of slits above the mask with a linear laser beam so that a part of the linear laser beam passes through the pair of slits; irradiating the mask with the part of the linear laser beam so that a first plurality of exposure laser beams is formed by a first part of the first plurality of openings; and irradiating a film over the substrate with the first plurality of exposure laser beams while moving the stage to perform exposure, thereby forming a first plurality of exposed patterns at approximately the same interval in the film at the same time, wherein the pair of slits is configured to cover a second part of the first plurality of openings and a part of the second plurality of openings, and wherein the first same interval between the first plurality of openings is different from the second same interval between the second plurality of openings.