Patent ID: 6713401
Filing Date: 2004-03-30
Classification: H01J,H01L

Abstract:
A method for dry cleaning a semiconductor device, comprising:(1) a step of forming a first film on a major surface of a substrate in a pattern; (2) a step of placing said substrate having said patterned first film in a process chamber; and (3) a step of placing above said major surface of said substrate, a pad structure having major surface opposing to said major surface of said substrate and having a gas ejection section provided on said major surface of the pad structure, and ejecting a cleaning gas from a gas ejection section in a depressurized state in said process chamber; (4) a step of controlling distance between said major surface of said substrate and said major surface of the pad structure thereby gearing a gas pressure therebetween to a desired gas pressure; and (5) a step of moving said major surface of the pad structure relatively in parallel with said major surface of said substrate.