Patent ID: 8279400
Filing Date: 2012-10-02
Classification: G03F

Abstract:
1. A super-resolution lithography method based on a multiple light exposure method, comprising: a first step of exposing a photographic medium having a plurality of energy levels of a first ground state, a second ground state, a first excited state, a second excited state and a quenching state to a first light source with a first spatial intensity distribution and a second light source with a second spatial intensity distribution, wherein the first light source induces energy level transition between the first ground state and the first excited state of the photographic medium, the second light source induces energy level transition between the second ground state and the first excited state of the photographic medium and the first excited state spontaneously decays to the first ground state and the second ground state; a second step of exposing the photographic medium having the plurality of energy levels to a third light source spatially uniform, wherein the third light source induces energy level transition between the second ground state and the second excited state of the photographic medium and the second excited state spontaneously decays to the second ground state and the quenching state; and wherein the first step and sequentially the second step are repeatedly performed until a desired lithography resolution is obtained.