Abstract
A new lithography concept for the sub-100 nm generations is proposed. The bulk of the machine is a traditional deep ultraviolet demagnification scanner–stepper. The mask is illuminated by 106–108 almost diffraction limited subbeams formed by a microlens array. After demagnification these subbeams are focused on a photon–electron converter plate. Each photon subbeam triggers the emission of a narrow beam of electrons. The electron beams are focused individually on the wafer, which is at a distance of about 1 mm from the converter plate. By scanning both mask and wafer through the many beams, the whole wafer is exposed.
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