Y. Maejima et N. Awaji, NEW EXPOSURE METHOD FOR SR LITHOGRAPHY - COMBINATION OF SCANNING MIRROR AND ELECTRON-BEAM WOBBLING, Microelectronic engineering, 23(1-4), 1994, pp. 193-196
A new exposure method, which provides both high X-ray intensity and do
se uniformity in a large exposure field for SR lithography, is discuss
ed. This method uses a scanning mirror method and electron beam wobbli
ng in combination in SR beamlines. Simulation results show that dose u
niformity of less than or equal to +/-2% will be achieved in the 50-mm
-square exposure field by this method. The advantage of this method wa
s confirmed by experiments in the 25-mm-square field.