Patent ID: 6372628
Filing Date: 2002-04-16
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device comprising an inter-layer film which is directly in contact with a copper based wiring, said inter-layer film being an amorphous carbon fluoride film coated with a silicon nitride film and a diamond like carbon film, said method comprising the steps of:forming an amorphous carbon fluoride film; forming a diamond like carbon film and a silicon nitride film after said amorphous carbon fluoride film is formed; forming a silicon oxide film on said diamond like carbon film and silicon nitride film; forming a wiring or via region in said silicon oxide film using a patterned photoresist; etching said silicon nitride film after removing said photoresist; forming a wiring pattern in said amorphous carbon fluoride film with a mask of said silicon nitride film; and forming flattened copper in said wiring or via region.