Patent ID: 6653676
Filing Date: 2003-11-25
Classification: H01L

Abstract:
An integrated circuit capacitor comprising:a silicon region having a first bottom surface, a first side surface, and a first top surface, the first side surface being in contact with an electrically insulating region; a silicide region having a second bottom surface, a second top surface, and a second edge surface, the second bottom surface being in contact with and coincident to the first top surface of the silicon region, the second edge surface being in contact with the electrically insulating region, the second top surface being spaced apart from the second bottom surface and the first top surface by the thickness of the silicide region; a conductive nitride region having a third bottom surface, a third top surface, and a third edge surface, the third bottom surface being in contact with and coincident to the second top surface, the third edge surface being in contact with the electrically insulating region and being substantially coplanar with the second edge surface, the third top surface being spaced apart from the third bottom surface and the second top surface by the thickness of the conductive nitride region, the area of the third top surface being the area of a bottom electrode of the integrated circuit capacitor, a dielectric layer disposed on the third top surface, making contact to the third top surface; and a conductive layer disposed on the dielectric layer, making contact to the dielectric layer.