Patent ID: 6044850
Filing Date: 2000-04-04
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device including ashing process comprising the steps of:forming a resist pattern on a metal film made of aluminum or aluminum containing material formed on a wafer including semiconductor;forming wirings made of said metal film by etching said metal film which is not covered with said resist pattern by use of an etching gas;exposing said resist pattern, said wirings, and their peripheral regions to a first atmosphere which includes a first product obtained by making a plasma of a gas containing water at a rate of more than 30 flow rate %;ashing, after said exposing step, said resist pattern in a second atmosphere which includes a second product obtained by making a plasma of an oxygen mixed gas which contains an oxygen gas as a principal component; andsupplying, after said ashing step, a resist releasing liquid to said wirings after said ashing in said second atmosphere.