Abstract: A system is provided to prepare deionized water having a 100% saturated concentration of a gas, e.g., nitrogen, at a hot temperature, e.g., 50-85° C., and an attendant pressure, e.g., atmospheric pressure, to clean a semiconductor wafer, e.g., of silicon. The gas concentration of deionized water having a predetermined concentration of the gas at a cold temperature, e.g., 15-30° C., is adjusted in a degassifier chamber having a vacuum pump and a pressure sensor, to provide an under-saturated concentration of the gas at the cold temperature corresponding to the saturated concentration thereof at the hot temperature and attendant pressure. The adjusted gas concentration water is then heated in a heating vessel having a heater and a temperature sensor, to the hot temperature to form a hot bath having such saturated gas concentration to clean the wafer, e.g., in a cleaning tank under megasonic vibrations.
Type:
Grant
Filed:
May 25, 1999
Date of Patent:
January 2, 2001
Assignee:
Infineon Technologies North America Corp.
Abstract: A continuous method for cleaning and/or removing liquid from industrial parts that includes contacting the part with a cleaning or rinsing composition that contains a straight chain or cyclic polyorganosiloxane.