Patent ID: 7326299
Filing Date: 2008-02-05
Classification: B05B,H01L

Abstract:
1. A process liquid supply device comprising: a substantially tubular nozzle provided with a discharge port for discharging a process liquid; a substantially bowl-shaped nozzle holder provided with a through-hole into which the nozzle can be inserted; a free space formed between an inner circumferential surface of the nozzle holder and an outer circumferential surface of the nozzle, at least a prescribed cleaning liquid being supplied into the free space; a nozzle holder driving mechanism configured to drive the nozzle holder relative to the nozzle in a vertical direction between a position where the nozzle is accommodated in the nozzle holder, and a position where the nozzle protrudes from the through-hole; and controlling means for controlling a supply mechanism of the cleaning liquid and supply of a process liquid, such that the cleaning liquid is supplied into the free space to clean the nozzle when the nozzle holder is placed at the position where the nozzle is accommodated in the nozzle holder, and the process liquid is discharged from the nozzle when the nozzle holder is placed at the position where the nozzle protrudes from the through-hole.