Patent ID: 6878401

Claim:
A method of processing a wafer comprising: a supplying step of supplying a specific amount of a processing solution on a wafer by spraying the processing solution from a first end of a nozzle; a sucking-back step, after the supplying step, of sucking back a solution surface of the processing solution remaining in the nozzle to a second end side of the nozzle by aspirating the remaining processing solution to the second end side; a soaking step, after the sucking-back step, of soaking the first end of the nozzle into a fluid; and an aspirating step, after the soaking step, of aspirating the processing solution remaining in the nozzle to the second end side to aspirate a specific amount of the fluid into the first end of the nozzle and to further suck back the solution surface of the processing solution to the second end side, such that the solution surface of the processing solution does not contact the fluid.