Patent ID: 6620258
Filing Date: 2003-09-16
Classification: B08B,H01L

Abstract:
A method for washing instruments used in semiconductor industry with an inflammable and/or explosive washing fluid, comprising the steps of:placing the instruments to be washed into a substantially gas-tightly closed washing space (2); removing air from the closed washing space (2) by supplying an inert gas or gas mixture to the washing space while allowing, at the same time, a gas mixture containing air in the washing space to be discharged from the washing space; first washing the instruments (3) by spraying them with the washing fluid that has been previously used for washing; second washing the instruments by spraying them with the washing fluid that has not been previously used for washing; removing the washing fluid from the washing space; and after the washing is completed, removing a gas mixture containing washing fluid vapor that is generated in the washing space from the washing space by supplying an inert gas/gas mixture to the washing space and by discharging, at the same time, the gas mixture containing the washing fluid vapor from the washing space (2).