A manufacturing method for an electronic component includes preparing a first composite magnetic section provided with a first composite magnetic layer and at least one marker layer disposed on the first composite magnetic layer; and preparing a second composite magnetic section provided with a second composite magnetic layer and at least one coil formed by winding a conductive wire and buried in the second composite magnetic layer with part of the coil being exposed. The manufacturing method further includes obtaining a multilayer body by disposing the first composite magnetic section so that a surface on the opposite side of the first composite magnetic section to a surface where the marker layer is disposed opposes a surface of the second composite magnetic section; and obtaining a molded body having a marker area formed with non-conductive particles pressed into the first composite magnetic layer.

A manufacturing method for an electronic component includes preparing a first composite magnetic section provided with a first composite magnetic layer and at least one marker layer disposed on the first composite magnetic layer; and preparing a second composite magnetic section provided with a second composite magnetic layer and at least one coil formed by winding a conductive wire and buried in the second composite magnetic layer with part of the coil being exposed. The manufacturing method further includes obtaining a multilayer body by disposing the first composite magnetic section so that a surface on the opposite side of the first composite magnetic section to a surface where the marker layer is disposed opposes a surface of the second composite magnetic section; and obtaining a molded body having a marker area formed with non-conductive particles pressed into the first composite magnetic layer.

A coil component includes a support member, an internal coil supported by the support member and including a plurality of coil patterns, and external electrodes connected to the internal coil and including a first layer in contact with the internal coil and a second layer disposed on the first layer. The second layer is a composite layer including a conductive material and a resin. The support member includes first and second surfaces facing the external electrodes, respectively, and one or more of at least a portion of the first surface and at least a portion of the second surface are configured as cut surfaces.

A coil component includes a support member, an internal coil supported by the support member and including a plurality of coil patterns, and external electrodes connected to the internal coil and including a first layer in contact with the internal coil and a second layer disposed on the first layer. The second layer is a composite layer including a conductive material and a resin. The support member includes first and second surfaces facing the external electrodes, respectively, and one or more of at least a portion of the first surface and at least a portion of the second surface are configured as cut surfaces.

A chip-type passive component includes at least one base, at least two coils, a magnetic cover and at least two silver-palladium layers. Both ends of the base have a flange, and one of the flanges has at least two holes; the at least two coils are wound around the outer end of the base; the magnetic cover is covered onto the exterior of the coil, and both ends of the magnetic cover have an opening, and the flange is latched to the opening; and the at least two silver-palladium layers is formed on both sides of one of the openings of the magnetic cover, and the coil is passed through the hole and contacted with the silver-palladium layer to define an electric connection.

A chip-type passive component includes at least one base, at least two coils, a magnetic cover and at least two silver-palladium layers. Both ends of the base have a flange, and one of the flanges has at least two holes; the at least two coils are wound around the outer end of the base; the magnetic cover is covered onto the exterior of the coil, and both ends of the magnetic cover have an opening, and the flange is latched to the opening; and the at least two silver-palladium layers is formed on both sides of one of the openings of the magnetic cover, and the coil is passed through the hole and contacted with the silver-palladium layer to define an electric connection.

A non-oriented electrical steel sheet containing: in mass%, C: 0.005% or less; Si: 0.1% to 2.0%; Mn: 0.05% to 0.6%; P: 0.100% or less; and Al: 0.5% or less, in which 10 pieces/m.sup.3 or less in number density of non-magnetic precipitate AlN having an average diameter of 10 nm to 200 nm are contained, and an average magnetic flux density B50 in a rolling direction and in a direction perpendicular to rolling is 1.75 T or more. This non-oriented electrical steel sheet can be manufactured by two methods of a method of performing hot rolling annealing at a temperature of 750 C. to an Ac1 transformation point and a method of setting a coil winding temperature to 780 C. or higher and performing self annealing.

A grain-oriented electrical steel sheet includes a steel sheet having a surface on which grooves in which an extending direction crosses a rolling direction and a depth direction is parallel to a sheet thickness direction are formed. A molten solidified substance ranging in parallel to the groove exists on both sides of the groove on a surface of the steel sheet. A height becoming a maximum frequency in a height distribution of height data in which the surface of the steel sheet in a specific area including the groove is measured at regular intervals is set as a virtual plane, and when a space volume of recess parts recessed from the virtual plane is set as V1 and a volume of projection parts projected from the virtual plane is set as V2, a value of V2/V1 is more than 0.10 and less than 0.80. A plurality of projections are formed in the specific area, and among the plurality of projections, a width of a projection closest to the groove is larger than widths of the other projections. When an area where an average height in the extending direction is highest in the height distribution is seen in a groove longitudinal cross section including the extending direction and the sheet thickness direction, an average roughness Ra of a roughness curve forming a surface of the area is 0.30 to 2.00 m, and an average length RSm of a roughness curve element forming the surface of the area is 10 to 150 m.

A coil component includes a coil having inner and outer circumferential surfaces, a pair of end surfaces, and a core surrounding at least a part of a periphery of the core. A cross section is where the coil component is cut by a plane, when each of coil sections is divided into eight regions by four straight lines extending along the inner circumferential surface, the outer circumferential surface and the end surfaces. In the cross section, first core members positioned at four corner regions, second core members positioned at an inner side of the inner circumferential surface and an outer side of the outer circumferential surface, and third core members, positioned at outer sides of the end surfaces form the core. At least one of the second and third core members has a magnetic permeability lower than that of the first core member in a zero magnetic field.

A coil component includes a coil having inner and outer circumferential surfaces, a pair of end surfaces, and a core surrounding at least a part of a periphery of the core. A cross section is where the coil component is cut by a plane, when each of coil sections is divided into eight regions by four straight lines extending along the inner circumferential surface, the outer circumferential surface and the end surfaces. In the cross section, first core members positioned at four corner regions, second core members positioned at an inner side of the inner circumferential surface and an outer side of the outer circumferential surface, and third core members, positioned at outer sides of the end surfaces form the core. At least one of the second and third core members has a magnetic permeability lower than that of the first core member in a zero magnetic field.