NOVELTY - The apparatus comprises: a body including a gas stream input and a liquid stream input; an ultrasonic nozzle (85) connected to the body for receiving a liquid stream and converting the liquid stream to an ultrasonic spray; and an assembly connected to the body for receiving and shaping a gas stream and directing the gas stream relatively perpendicular to the ultrasonic spray to control a plume shape of the ultrasonic spray. The assembly includes a hydraulic nozzle for receiving, shaping and redirecting the gas stream to impact the ultrasonic spray and control the plume shape of the spray.    USE - The apparatus is useful for shaping a plume of an ultrasonic spray for depositing a suspension of transparent conductive oxide on a thin film solar cell in a solar cell manufacturing process (all claimed) and for forming coatings on foodstuffs and/or food packaging materials.    ADVANTAGE - The apparatus has compact, lightweight design, is capable of forming thin and uniform coatings on the foodstuffs and/or food packaging materials, and reduces the amount of liquid being used.    DETAILED DESCRIPTION - The apparatus comprises: a body including a gas stream input and a liquid stream input; an ultrasonic nozzle (85) connected to the body for receiving a liquid stream and converting the liquid stream to an ultrasonic spray; and an assembly connected to the body for receiving and shaping a gas stream and directing the gas stream relatively perpendicular to the ultrasonic spray to control a plume shape of the ultrasonic spray. The assembly includes a hydraulic nozzle for receiving, shaping and redirecting the gas stream to impact the ultrasonic spray and control the plume shape of the ultrasonic spray. The hydraulic nozzle comprises a flat fan hydraulic nozzle. The apparatus further comprises: a block for positioning the hydraulic nozzle relative to the ultrasonic nozzle; a product comprising flux deposited upon a printed circuit board; a product comprising solder bus flux for the production of silicon solar cells; a product comprising phosphoric doping material to be used in a pyrolysis production of fuel cells; a product to coat proton exchange membranes with a catalyst ink onto Nafion (RTM: Sulfonated tetrafluoroethylene based fluoropolymer-copolymer) membranes; products to coat a bread with a preservative and with an egg wash; and a unit for directing the ultrasonic spray onto a surface to deposit the liquid stream upon the surface. An INDEPENDENT CLAIM is included for a method for shaping a plume of an ultrasonic spray to deposit flux on a surface.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic side view of a highly controllable ultrasonic nozzle spray arrangement.    Air inlet fitting (81)    Flat jet air deflector horn (82)    Liquid inlet fitting (83)    Controllable air stream (84)    Ultrasonic nozzle. (85)