Patent ID: 6903027
Filing Date: 2005-06-07
Classification: H01L

Abstract:
1. A method of forming a dielectric film, comprising the steps of: (a) forming an insulating film including Si—C (b) forming a resist selectively on a main surface of said insulating film; (c) removing said insulating film not covered with said resist to form a recess in said main surface of said insulating film; and (d) performing an ashing process using gas plasma to remove said resist; wherein said step (d) is carried out under a condition that said Si—C and wherein said condition is either (1) or (2), wherein (1) oxygen gas plasma at a temperature of 25° C. or lower and a chamber pressure ranging from 4 to 70 Pa, wherein oxygen is the sole active component, and (2) oxygen gas plasma at a temperature of 100° C. or lower and a chamber pressure ranging from 4 to 13.3 Pa, wherein oxygen is the sole active component.