Patent ID: 7867692
Filing Date: 2011-01-11
Classification: B82Y,G02B,G03F

Abstract:
1. A method of manufacturing a microstructure, the method comprising: generating a first laser beam, a second laser beam, and a third laser beam from a laser light using a branching unit, each of the first laser beam and the second laser beam having a wavelength shorter than a wavelength of visible light, the first laser beam being a plus n order beam, the second laser beam being a minus n order beam, n being a natural number, the third laser beam being a zero order beam and having a lower energy than the first laser beam and the second laser beam; reflecting the first laser beam and the second laser beam such that the first laser beam intersects the second laser beam to generate an interference light; and setting a relative position between a film and the interference light by referring an output from a monitor, the monitor converting the third laser beam to an electrical signal.