Patent ID: 6865251

Claim:
A contact lithography device, comprising a soft X-rays source, a half-lens for transforming a divergent radiation of said source to a quasi-parallel radiation, said half-lens including a set of channels for transporting radiation with a total external reflection oriented along the generatrices of barrel-shaped surfaces, means for locating a mask and a substrate coated with a resist adjacent an output face of said half-lens, said lithography device including an absorbing filter for smoothing the beam intensity irregularity of emergent radiation of said half lens, wherein said absorbing filter is located between said soft X-rays source and an input face of said half-lens, a relationship of a cross-sections size of said half lens and the half-lens from said input face is chosen for providing a condition of capturing of the radiation of said soft X-rays source in the following limits: 0.7/E 1.5 ≦Ψ≦1.3/E 1.5 , where Ψ is the radiation capture angle [rad]; E is radiation energy of said soft X-rays source [keV], wherein a material of reflecting surface of the channels for radiation transporting includes elements with an atomic number not more than 22, and radiation energy of said soft X-rays source is 0.6-6 keV.