Patent ID: 7226707

Claim:
A method of printing structures in a radiation-sensitive material, comprising: providing a radiation-patterning tool and providing the radiation-sensitive material; defining a radiation-patterning tool domain to consist of features present on the radiation-patterning tool and defining a printed domain to consist of structures printed in the radiation-sensitive material using the radiation-patterning tool; passing actinic radiation through the radiation-patterning tool and onto the radiation-sensitive material to print the structures into the radiation-sensitive material; and wherein: the actinic radiation has a wavelength; the printed domain comprises two structures separated from one another by an edge-to-edge gap that is less than or about equal to the wavelength; the radiation-pattering tool domain comprises a pair of features through which the radiation is passed to print the pair of structures; and the radiation-patterning tool domain further comprises an element between the pair of features and which modifies radiation that passes through the pair of features.