Patent ID: 7332055

Claim:
A substrate processing apparatus for processing a substrate, comprising: a spin chuck adapted to hold and rotate a substrate; a chemical nozzle that supplies the substrate with a chemical liquid; a rinse nozzle that supplies the substrate with a rinse liquid; an inert gas nozzle that supplies the substrate with an inert gas; an arm, holding the chemical nozzle, the rinse nozzle, and the inert gas nozzle that moves the chemical nozzle, the rinse nozzle, and the inert gas nozzle to their processing positions in which the chemical nozzle, the rinse nozzle, and the inert gas nozzle are located adjacent to a peripheral part of the substrate and are aligned in a row in a radial direction of the substrate in that order from radially outside; an annular cover surrounding the substrate held by the spin chuck to receive fluids which have been supplied to the substrate in rotation and subsequently splashed due to resultant centrifugal force; and a cover plate integrated with the plural fluid suppliers and having a portion thereof which separates, with respect to the radial direction of the substrate, a space radially outside said portion and adjacent to ejection ports of the fluid suppliers from a space radially inside said portion, thereby to prevent the processing fluids ejected from the fluid suppliers located in the processing position from splashing to the center portion of the substrate held by the spin chuck.