Embodiments in accordance with the present invention relate to a number of
techniques, which may be applied alone or in combination, to reduce
charge damage of substrates exposed to electron beam radiation. In one
embodiment, charge damage is reduced by establishing a robust electrical
connection between the exposed substrate and ground. In another
embodiment, charge damage is reduced by modifying the sequence of steps
for activating and deactivating the electron beam source to reduce the
accumulation of charge on the substrate. In still another embodiment, a
plasma is struck in the chamber containing the e-beam treated substrate,
thereby removing accumulated charge from the substrate. In a further
embodiment of the present invention, the voltage of the anode of the
e-beam source is reduced in magnitude to account for differences in
electron conversion efficiency exhibited by different cathode materials.