Patent ID: 6762110
Filing Date: 2004-07-13
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device having a capacitor, the method comprising the steps of:(a) forming, on a first insulating film formed on a semiconductor substrate, a second insulating film; (b) forming, in said first and second insulating films, a contact plug having an upper surface exposed in an upper surface of said second insulating film; (c) forming third and fourth insulating films on a structure obtained by said step (b) in this order; (d) forming a recess having a side surface and a bottom surface, said side surface defined by said third and fourth insulating films and said bottom surface defined by said upper surface of said second insulating film and said upper surface of said contact plug; (e) forming a capacitor lower electrode on said side surface and said bottom surface of said recess; and (f) forming a capacitor upper electrode over said capacitor lower electrode so that a capacitor dielectric film is interposed therebetween; wherein said second and third insulating films are made of a material having a higher adhesiveness to a material of which said capacitor lower electrode is made than a material of which said first and fourth insulating films are made.