Patent ID: 6162507
Filing Date: 2000-12-19
Classification: B05B,B05C,G03F,H01L

Abstract:
A method of providing a substantially uniform gas flow field near a rotating surface upon which a process liquid is to be dispensed, the method comprising:providing at least two process liquid dispense lines having substantially uniform cross sectional dimensions and outlets;aligning the process liquid dispense line outlets for simultaneous operation over the rotating surface in a generally parallel alignment;connecting the process liquid dispense lines to a common liquid source;separating the process liquid dispense lines by a distance at least as large as the largest cross sectional dimension of the process liquid dispense lines, so as to minimize the disturbance of the gas flow field near the surfacealigning a solvent dispense line parallel to and between the process liquid dispense lines, wherein the solvent dispense line is connected to a second liquid source;dispensing the process liquid onto the rotating surface from the outlets of the two process liquid dispense lines simultaneously; anddispensing the second liquid from the solvent dispense line.