Patent ID: 7781284
Filing Date: 2010-08-24
Classification: H01L,Y10S

Abstract:
1. A manufacturing method of semiconductor device comprising: forming a first insulating film over a semiconductor substrate; forming capacitors, each having a lower electrode, a dielectric film, and an upper electrode, on the first insulating film in a cell region; forming a second insulating film over the capacitor and the first insulating film; forming a recess, which covers the cell region, in the second insulating film; forming a metal film, which has a thickness of burying the recess, in the recess and on an upper surface of the second insulating film; removing the metal film from the upper surface of the second insulating film and also leaving the metal film in the recess as a metal pattern; and heating the metal film at a melting point or less of the metal film before or after the formation of the metal pattern, to change a stress of the metal film.