SHEET-LIKE INDUCTOR, INDUCTOR WITH BUILT-IN LAMINATION SUBSTRATE, AND MANUFACTURING METHOD THEREFOR

A sheet-like inductor has a magnetic core 1, and a coil 8, and is provided with first and second via holes 1a, 1b penetrating the two surfaces of the magnetic core 1 facing each other in the lamination direction. The coil 8 has first and second via conductors 2, 3 formed so that the ends project from the first and second via holes 1a, 1b to the outside, and first and second surface conductors 4, 5bonded to both ends of the first and second via conductors 2, 3 via plugs 2a, 3a. The magnetic core consists of a sheet formed by molding a mixture containing a soft magnetic flat metal powder and abinder so that the soft magnetic flat metal powder is oriented in a plane formed by the inductor, or by laminating a plurality of the sheets and pressing them in the lamination direction. The inductorwith a built-in lamination substrate has the magnetic core 1 built in the lamination substrate. 片状电感器具有磁芯(1)和线圈(8)，设置了分别在所述层叠方向上贯通所述磁芯(1)的对置的两个面的第1及第2通孔(1a、1b)。所述线圈(8)具有：分别以端部从所述第1及第2通孔(1a、1b)向外侧突出的方式形成的第1及第2通孔导体(2、3)；和经由插头部(2