An apparatus for immersion optical lithography having a lens capable of
relative movement in synchrony with a horizontal motion of a
semiconductor wafer in a liquid environment where the synchronous motion
of the lens apparatus and semiconductor wafer advantageously reduces the
turbulence and air bubbles associated with a liquid environment. The
relative motions of the lens and semiconductor wafer are substantially
the same as the scanning process occurs resulting in optimal image
resolution with minimal air bubbles, turbulence, and disruption of the
liquid environment.