Patent ID: 9599908
Date: 2017-03-21
CPC Classifications: G03F

Claim:
1. An immersion type lithographic apparatus comprising: a projection system configured to project a beam of radiation to expose a substrate and to project a cleaning beam of radiation; a movable table; an immersion system configured to at least partially fill an immersion space with an immersion liquid, the immersion system comprising an inlet configured to provide the immersion liquid to the space; a cleaning fluid supply system configured to provide a cleaning fluid to the immersion space; a liquid confinement system configured to confine the immersion liquid in the immersion space and configured to remove immersion liquid from the immersion space; and on a surface facing the projection system, a reflector configured to redirect radiation of the cleaning beam incident on one or more reflective surfaces of the reflector such that substantially all the reflected radiation is incident onto only an underside of the liquid confinement system.