Laminated coil component and method for manufacturing same

A method for manufacturing a laminated coil component having a magnetic section including stacked magnetic layers stacked and a conductor section having a plurality of conductor pattern layers arranged between the magnetic layers, and the conductor pattern layers being interconnected in a coiled shape to pass through the magnetic layers, the conductor section being buried in the magnetic section, the method comprising:

• stacking green sheets of a ferrite material containing Fe2O3, NiO, ZnO, and CuO and having a CuO content of 0.3 to 4 mol %, with conductor paste layers interposed between the green sheets, the conductor paste layers containing silver, to obtain a laminated body having the conductor paste layers interconnected in a coiled shape to pass through the green sheets of the ferrite material;
• and
• applying a heat treatment in an atmosphere with an oxygen concentration of 0.1 vol % or less to the laminated body to provide fired green sheets of the ferrite material and fired conductor paste layers containing silver respectively as magnetic layers and conductor pattern layers which respectively form the magnetic section and the conductor section.