Patent ID: 8736812

Claim:
A projection-type photolithography system using a composite photon sieve, the system comprising: a lighting system, a mask plate, a composite photon sieve and a substrate, which are arranged in order, wherein: the lighting system is adapted to generate incident light and irradiate the mask plate with the incident light; the mask plate is adapted to provide an object to be imaged by the composite photon sieve, and the incident light reaches the composite photon sieve after passing through the mask plate; the composite photon sieve is adapted to perform imaging, by which a pattern on the mask plate is imaged on the substrate; the substrate is adapted to receive an image of the pattern on the mask plate imaged by the composite photon sieve; and the composite photon sieve has a series of transparent annular zones and a plurality of transparent holes distributed thereon, wherein the plurality of transparent holes constitute a first order diffractive photon sieve portion of the composite photon sieve, and the series of transparent annular zones constitute a third order diffractive zone plate portion of the composite photon sieve.