Patent ID: 6548820
Filing Date: 2003-04-15
Classification: G03F,Y10S

Abstract:
An interferometric microlithography system for producing a spatially non-periodic pattern comprising:a laser source producing a source laser beam; an amplitude beam splitter in optical communication with said laser source, said beam splitter receiving said laser source beam and generating a plurality of laser beams therefrom; a plurality of beam controllers, each of said beam controllers positioned to receive a respective one of said plurality of laser beams and direct said respective laser beam into a region of overlap defined by an intersection of all of said plurality of laser beams; and a system controller in electrical communication with each of said plurality of said beam controllers, wherein each beam controller controls at least one of the phase, amplitude and polarization of a respective one of said plurality of laser beams in response to control signals from said system controller, and wherein said spatially non-periodic pattern is formed within said region of overlap by the interference of said plurality of laser beams in response to said control signals from said system controller.