| 摘要 |
A tank for an immersion lithography apparatus provided. The tank has a container with a bottom plate and side plates connected to each, wherein the side plates surround and connect all edges of the bottom plate. The container is filled in at least a liquid having a refractive index thereof from about 1.4 to about 1.8. A platform is located in the container and immersed in the liquid. The platform has an axle fastened on a side thereof parallel to the bottom plate, wherein the axle passes through a bearing hole penetrated through one of the side plates. A roller disposed outside the container connects to the axle to rotate the axle, and furthermore, to incline the platform accordingly.
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