Patent ID: 6228776
Filing Date: 2001-05-08
Classification: G03F

Abstract:
A method for adjusting Etch-Module-Asher Endpoint of plasma asher apparatus, comprising the steps of:regulating a first Etch-Module-Asher Endpoint;placing the semiconductor wafer coated with said resist film in a vacuum chamber;positioning the semiconductor wafer into asher through said vacuum chamber having a semiconductor wafer holding-set plate therethrough for closely receiving and orderly stepped ranking said semiconductor wafer therethrough, said semiconductor wafer being pushed to said vacuum chamber; andregulating a second Etch-Module-Asher Endpoint, whereby ashing the resist film by an oxygen plasma while heating the substrate to remove said resist film such that photoresist is peeled up a first end of said semiconductor wafer is cleaned up and the other end of said semiconductor wafer the same.