Patent ID: 7224012

Claim:
A thin film capacitor comprising: a first electrode layer of a predetermined width, formed on a lower insulation film on a structure of a semiconductor substrate; a side wall made of insulating material, formed on a side surface of the first electrode layer; an interlayer insulation film having a via hole to expose a whole top surface of the first electrode layer and a portion of the side wall, formed on an entire top surface of the lower insulation film including the first electrode layer and the side wall; a dielectric layer formed on an inner wall of the via hole; a second electrode layer formed on the dielectric layer such that the via hole is filled; and an upper metal wire formed on the second electrode layer such that the upper metal wire is electrically connected to the second electrode layer, wherein an edge area at which a side surface and a bottom of the via hole intersect is located on a top surface of the side wall.