Method and apparatus for liquid treatment of wafer shaped articles

An apparatus for treating a wafer-shaped article, comprises a spin chuck for holding a wafer-shaped article in a predetermined orientation, at least one upper nozzle for dispensing a treatment fluid onto an upwardly facing surface of a wafer-shaped article when positioned on the spin chuck, and at least one lower nozzle arm comprising a series of lower nozzles extending from a central region of the spin chuck to a peripheral region of the spin chuck. The series of nozzles comprises a smaller nozzle in a central region of the spin chuck and a larger nozzle in a peripheral region of the spin chuck. In the method according to the invention, a heated liquid is supplied through the series of nozzles so as to supply more heat to peripheral regions of a wafer than to central regions.