Monolithic integrated circuit incorporating an inductive component and process for fabricating such an integrated circuit

A process for fabricating a monolithic integrated circuit incorporating an inductive component, which comprises the following steps in which:

• a polyimide layer (9) is deposited on a semiconductor substrate (2) covered with a passivation layer (4) and comprising metal pads (5) connected to the substrate (2) and passing through the passivation layer (4) in order to be flush with the upper face (6) of said layer (4);
• a silica layer (16) is deposited on said polyimide layer (9);
• apertures (30) are made in the silica layer (16) and the polyimide layer (9), said apertures (30) emerging at the metal pads (5);
• a metal growth sublayer (33) is deposited on the assembly;
• a layer of photosensitive resin is deposited on the metal growth sublayer (33);
• the resin is exposed and the regions intended to form the lower face of the inductive component (20) are removed;
• a copper layer intended to form the strip of the inductive component is electrolytically deposited on the visible regions of the metal growth sublayer;
• the rest of the photosensitive resin and the rest of the metal growth sublayer are removed.