| 摘要 |
<p>A liquid immersion member cleaning method used in an immersion exposure apparatus exposes a substrate with exposure light that transits an exposure liquid, wherein the liquid immersion member is disposed at least partly around an optical member and an optical path of the exposure light, which passes through the exposure liquid between the optical member and the substrate. The cleaning method comprises: loading a cleaning tool into the immersion exposure apparatus and disposing the cleaning tool at a position at which it opposes a first recovery port of the liquid immersion member, which is capable of recovering the exposure liquid; and supplying a cleaning liquid to a recovery passageway of the liquid immersion member, wherethrough the exposure liquid from the first recovery port flows. The liquid immersion member has a first discharge port, which is for discharging the exposure liquid from the recovery passageway, and a second discharge port, which is for discharging a gas from the recovery passageway and hinders the discharge of the exposure liquid more than the first discharge port does; and the cleaning liquid is recovered from a recovery part of the cleaning tool via the first recovery port.</p> |
