Patent ID: 6407419
Filing Date: 2002-06-18
Classification: H01L

Abstract:
A semiconductor device, comprising:an interlayer insulating film formed on a main surface of a semiconductor substrate; a conducting plug formed in a contact hole penetrating through said interlayer a capacitor lower electrode formed on said conducting plug and said interlayer insulating film; and a capacitor dielectric formed to cover said capacitor lower electrode and said interlayer insulating film; wherein an end portion of an upper surface of said conducting plug adjacent to a sidewall of said capacitor lower electrode and having a portion overlapping an outer periphery of an upper surface of said capacitor lower electrode when viewed two-dimensionally, and an insulating portion formed in said end portion of the upper surface of said conductive plug to be interposed between and separating said end portion of the upper surface of said conducting plug and said capacitor dielectric.