Patent ID: 8187389
Filing Date: 2012-05-29
Classification: G03F,H01L,Y10S

Abstract:
1. A method of removing a resist from a substrate, comprising: preparing a chamber; putting the substrate into the chamber; heating the substrate at about 100° C.; feeding the chamber with unsaturated hydrocarbons by such an amount that an interior of the chamber has a pressure of approximately 350 Pa; feeding the chamber with a concentrated ozone gas by such an amount that the interior of the chamber containing the unsaturated hydrocarbons has a pressure of approximately 700 Pa; feeding the chamber with water vapor by such an amount that the interior of the chamber containing the unsaturated hydrocarbons and the concentrated ozone gas has a pressure of approximately 1500 Pa, wherein the heating step and the feeding steps result in removal of resist from the substrate; stopping the feeding of the concentrated ozone gas into the chamber, stopping the feeding of the unsaturated hydrocarbons into the chamber; stopping the feeding of the water vapor into the chamber; and cleaning the substrate by using pure water.