Aqueous compositions for making ultrapure water used in microelectronic device fabrication processes and methods of sterilizing ultrapure water delivery systems using the same

Compositions for making ultrapure water in microelectronic device fabrication processes comprise hydrogen peroxide, peracetic acid, and water. Methods of sterilizing ultrapure water delivery systems for use in microelectronic device fabrication processes comprise contacting ultrapure water delivery...

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Bibliographische Detailangaben
Hauptverfasser:	OH, YUNUL, HWANG, JUNG-SUNG, KIM, SEUNG-UHN, SUE-RYEON
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BASIC ELECTRIC ELEMENTS BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PERFORMING OPERATIONS PEST REPELLANTS OR ATTRACTANTS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF SEMICONDUCTOR DEVICES SEPARATION TRANSPORTING TRAPPING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	Compositions for making ultrapure water in microelectronic device fabrication processes comprise hydrogen peroxide, peracetic acid, and water. Methods of sterilizing ultrapure water delivery systems for use in microelectronic device fabrication processes comprise contacting ultrapure water delivery systems with water having temperatures ranging from about 26 DEG C. to about 40 DEG C.; and sterilizing the ultrapure water delivery systems with compositions comprising hydrogen peroxide, peracetic acid, and water. The ultrapure water delivery systems comprise water tanks, heat exchangers in fluid communication with the water tanks, ultraviolet sterilizers in fluid communication with the heat exchangers, OR-polishers in fluid communication with the ultraviolet sterilizers, MB-polishers in fluid communication with the OR-polishers, and ultrafilters in fluid communication with the OR-polishers. The compositions employed in the sterilizing step do not contact the OR-polishers and the MB-polishers.