An exposure apparatus and exposure method that produces plasma from a
target material, generates pulsed light, and carries out exposure with
the pulsed light.In particular, a light emitting source generates pulsed
light by producing plasma from an intermittently supplied target
material. A reticle stage holds a reticle that is irradiated by the
pulsed light. A photosensitive substrate stage holds a photosensitive
substrate irradiated by the pulsed light patterned by the reticle. A
control means controls the photosensitive substrate stage so that, before
exposing the photosensitive substrate begins, the timing between an
exposure starting point or an exposure ending point and the light
emission timing are matched based on the drive timing of the
photosensitive substrate stage and the light emission timing of the
pulsed light.