Patent ID: 8056832

Claim:
A jetspray nozzle for cleaning a photolithographic mask or semiconductor wafer comprising: a water supply inlet; a gas supply inlet; a first row of gas injection nozzles communicating with the gas supply inlet; the first row of gas injection nozzles arranged to form a ring of radially spaced apart nozzles that are concentrically arranged about an axial centerline of the jetspray nozzle; an enlarged mixing cavity defining a jetspray nozzle outlet, the cavity being radially larger than the water supply inlet; and a flow mixing baffle disposed in the cavity, the mixing baffle being configured and arranged to combine gas and water for delivering a gas-water mixture from the nozzle outlet for removing contaminant particles from the photolithographic mask or wafer; wherein the first row of injection nozzles are arranged and configured to discharge gas into the enlarged mixing cavity towards the baffle.