Abstract:
An ozone generating apparatus comprising at least one ozone generating unit including: two electrodes (2,31) mutually opposed to generate discharge in response to high voltage applied therebetween; at least one dielectric (4) interposed between the electrodes; and a gas supply mechanism to supply an oxygen-containing gas between the electrodes so as to generate ozone by the discharge; wherein a discharge space (5) has a gas pressure of one atmosphere or more. The invention is characterised by a choice of discharge gap length (less than 0.4 or less than 0.6 mm) and by the product of the gas pressure and the discharge gap length.
Abstract:
The invention features an apparatus and a method for supplying ozonated water to more than one process tool. Ozonated water of a first concentration received from an ozonated water generator and water received from a source are mixed to produce ozonated water of a second concentration. The ozonated water of a second concentration is supplied to a frst process tool. Ozonated water from the ozonated water generator is supplied to a second process tool while supplying the ozonated water of the second concentration to the first process tool.
Abstract:
Process for making ozone comprising passing substantially pure carbon dioxide between electrodes having a sufficient voltage difference between them to cause a corona discharge across them.
Abstract:
Ozone is generated from an oxygen-containing gas utilizing a tube-type ozone generator at significantly greater power efficiency. The oxygen is introduced into the annular passageway between the electrodes of the tube-type ozone generator at an angle (e.g. about 45-90°) so that it swirls in a cyclonic flow path as it travels from one end of the annular passageway to the other. The amount of power consumed to produce a gas having about 8 % ozone is roughly half of the power needed if the same conditions are applied but the oxygen gas is introduced conventionally (without swirling action, so that it travels along the dimension of elongation of the passageway). The swirling action also allows a higher concentration of ozone (e.g. 10 % or more) to be achieved in the product gas compared to the same conditions when no swirling is employed. Cooling fluid, such as nitrogen gas, may be passed through an interior passageway and outside the outer electrode either co-current or countercurrent to the general direction of oxygen gas flow.
Abstract:
An apparatus has a tank with an interior for containing water, a nozzle for directing ozonated water out of the spray apparatus, and an electrolytic cell located between the nozzle and the tank. The electrolytic cell is configured to ozonate water as the water flows from the tank to the nozzle. The apparatus also includes a power source for providing electric potential to the electrolytic cell. The tank, nozzle, and electrolytic cell all are part of a single spray bottle or dispenser (e.g., like a soap dispenser).
Abstract:
A method for mixing fluids for process tools comprises: receiving a first fluid having a first flow and a first concentration to be supplied to a first process tool; receiving a second fluid having a second flow and second concentration; and mixing the first and the second fluid to produce a third fluid having a third flow and third concentration to be supplied to a second process tool.