Patent ID: 6838371

Claim:
A method of manufacturing a semiconductor device, comprising the steps of: forming an insulating film on a main surface of a semiconductor substrate; forming an opening for forming a predetermined conducive pattern in said insulating film; forming a conductive film on said insulating film so as to bury said opening; and performing a polishing process on said conductive film and said insulating film by using a slurry having the function of polishing both said conductive film and said insulating film, thereby leaving said conductive film in said opening to form said predetermined conductive pattern, the method comprising performing the polishing process by: predetermining a residual step in the polished insulating layer based upon the pattern density of the predetermined conductive pattern; polishing, such that any step formed does not exceed the predetermined residual step, by controlling at least one polishing parameter, wherein the predetermined residual step is selected to reduce the formation of undesirable metal residue during formation of subsequent metal patterns above the predetermined residual step; after polishing forming another insulating film on said insulating film so as to cover said conductive pattern; forming another opening in said another insulating film; and forming a predetermined another conductive pattern by burying said another opening with another conductive film.