Patent ID: 7686022
Filing Date: 2010-03-30
Classification: B05B,H01L

Abstract:
1. A nozzle device for use in semiconductor wafer cleaning comprising: a substantially cylindrical nozzle body having inlets for turbine air, bearing airs shaving air and detergent; and a cup member which is arranged within an air cap in the nozzle body and is supported without contact by the bearing air supplied to the via the bearing air inlet while being driven to turn by the turbine air fed to the nozzle device via the turbine air inlet; wherein the cup member has a space in which detergent and air are mixed and a tip part with openings from which mixed detergent and air is jetted out of the tip of the nozzle; wherein grooved gaps are formed between a peripheral edge of the air cap and a surrounding portion of a tip cover of the nozzle body, said gaps being in communication with shaving air from the inlet for shaving air; wherein fluid droplets having a droplet size of not more than 100 μm are jetted out of the tip of the nozzle and is controlled with the turbine air that is fed to the nozzle device.