Patent ID: 8153355
Filing Date: 2012-04-10
Classification: B08B,G03F

Abstract:
1. A method of cleaning an immersion supporting plate provided around a substrate to be processed in immersion exposure, the method comprising: determining a first immersion boundary between an immersion area contact part and an immersion area noncontact part on the immersion supporting plate formed when an immersion area of an immersion liquid is moved according to a predetermined exposure area and a first exposure map; and after a first exposure is performed according to the first exposure map, cleaning at least a part of the first immersion boundary on the immersion supporting plate, while moving a cleaning jig along the first immersion boundary, wherein the at least a part of the first immersion boundary to be cleaned is located inward of a second immersion boundary determined by an exposure area to be exposed at a second exposure which is next to the first exposure and by a second exposure map.