Invention Grant
US09176394B2 Immersion lithography apparatus and method having movable liquid diverter between immersion liquid confinement member and substrate 有权
浸没式光刻设备和方法,在浸没液体限制构件和衬底之间具有可移动的液体转向器

Immersion lithography apparatus and method having movable liquid diverter between immersion liquid confinement member and substrate
Abstract:
An immersion lithography apparatus that includes a substrate holder on which a substrate is held, a projection system having a final optical element and that projects an exposure beam onto the substrate through an immersion liquid, and a liquid confinement member having an aperture through which the exposure beam is projected, a lower surface including a non-fluid removal area surrounding the aperture, and a liquid recovery outlet from which the immersion liquid is recovered, also includes a movable member. The movable member is movable relative to the liquid confinement member in a substantially horizontal direction, and has an opening through which the exposure beam is projected. The movable member has upper and lower surfaces that surround the opening, and is movable while a portion of the upper surface faces the non-fluid removal area in the lower surface of the liquid confinement member.
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