Patent ID: 7669780
Filing Date: 2010-03-02
Classification: B05B,B05C,H01L,Y10S

Abstract:
1. A substrate processing apparatus in which a fluid is supplied onto a substrate to perform surface processing of the substrate, the apparatus comprising: a flow rate control system for controlling a flow rate of a fluid flowing into a fluid supply nozzle, wherein the fluid supply nozzle comprises: wherein the fluid is supplied from the fluid supply nozzle to the substrate, wherein a length direction of an opening of the slit and a direction in which the fluid is discharged from the slit are substantially parallel to the substrate which is horizontally placed, and wherein a cross section of the reservoir section taken along the perpendicular direction to the length direction of the opening plane of the slit has a shape with a part expanding toward an opposing side to the flow velocity control wall with respect to a straight line joining a contact point between an inner wall of the reservoir section and the flow velocity control wall and a contact point between the inner wall of the reservoir section and the slit.