| 摘要 |
A method and apparatus for forming a generally uniform liquid layer on a surface of an upper surface microelectronic substrate. The apparatus can include a support that engages less than the entire lower surface of the microelectronic substrate and rotates the microelectronic substrate at a selected rate. A barrier can extend over the upper surface of the microelectronic substrate and can rotate at about the same rate as the substrate to separate a rotating air mass adjacent to the upper surface and within the barrier from a stationary air mass external to the barrier. The rotating air mass can reduce the likelihood for liquid/air interface disturbances that create non-uniformities in the liquid layer. Accordingly, the method and apparatus can increase the range of thicknesses to which the liquid layer can be formed and can reduce the topographical non-uniformities of the liquid layer.
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