ELECTRON BEAM LITHOGRAPHY METHOD AND APPARATUS USING A DYNAMICALLY CONTROLLED PHOTOCATHODE

摘要

Embodiments of the invention include an electron beam lithography device (200) using a dynamically controllable photocathode capable of producing a patterned electron beam (208). One such implementation includes a dynamic pattern generator ( 202) configurable to produce an electron beam (208) having a desired image pattern impressed thereon. Such an electron beam pattern being enabled by selectively activating programmable photoemissive elements of the pattern generator. The apparatus further including an illumination source. (201) arranged to direct a light beam onto the dynamic pattern generator (202) to produce the electron beam having the desired pattern. The electron beam being directed through associated electron optics (215) configured to receive the electron beam from the dynamic pattern generator and direct the electron beam onto a target substrate (205) mounted on a stage (206).