Patent ID: 6039815
Filing Date: 2000-03-21
Classification: B01F,C02F,C11D,G02F,H01L,Y10S

Abstract:
A method for cleaning an object comprising:providing a cleaning apparatus comprising:a device for forming an ozone gas;a device for forming a hydrogen gas;a mixing device for dissolving said ozone gas into pure water to produce ozone water;a mixing device for dissolving said hydrogen gas into pure water to produce hydrogen water;a mixing device for mixing one of a group consisting of an acidic solution and an alkaline solution with said ozone water to obtain an oxidizing cleaning solution;a mixing device for mixing one of a group consisting of an acidic solution and an alkaline solution with said hydrogen water to obtain a reducing cleaning solution;means for supplying at least one of said cleaning solutions to a subject to be cleaned;producing said ozone gas and said hydrogen gas;dissolving at least one of said ozone gas and said hydrogen gas into pure water to produce at least one of ozone water and hydrogen water;selectively mixing at least one of said ozone water and said hydrogen water with at least one of the acidic solution and alkaline solution to produce at least one cleaning solution selected from the group consisting of an oxidizing acidic cleaning solution, an oxidizing alkaline cleaning solution, a reducing acidic cleaning solution, and a reducing alkaline cleaning solution; andcleaning the subject by supplying said at least one of said cleaning solutions to the subject.