Patent ID: 7390618
Filing Date: 2008-06-24
Classification: G02B

Abstract:
1. A manufacturing device which forms a microstructure by irradiating a laser beam to a process target material, said manufacturing device of a microstructure comprising: a beam source for generating a laser beam; a modulator for intermitting said laser beam; branching means for branching the modulated beam into a plurality of beams; condensing means for condensing and interfering said plurality of beams in order to generate a spot set formed of a plurality of minute spots on said process target material; an optical bench on which the condensing means is mounted; and a turntable on which the process target material is located, the optical bench and turntable being movable relative to each other, wherein by controlling the optical bench and turntable, an irradiation trace is formed by irradiating said spot set a plurality of times while changing an irradiation position of the spot set against the process target material, and wherein by controlling the optical bench and the turntable, multilayer exposure is performed by overlapping a part of a plurality of irradiation traces pursuant to a single spot set and a part of a plurality of irradiation traces pursuant to another spot set.