Patent ID: 7443279
Filing Date: 2008-10-28
Classification: H01F,H01Q,H05K

Abstract:
1. A coil package having a coil mounted therein, comprising: a cone/pyramid-shaped coil having a conical or pyramidal shape formed by a conductor wire wound around an outer peripheral surface of a core in a manner such that a winding diameter of said coil progressively decreases from one end to the other end of said coil; and a dielectric substrate, wherein said cone/pyramid-shaped coil and said dielectric substrate are integrated with each other by forming a hole in said dielectric substrate, for inserting a tip portion of said cone/pyramid-shaped coil, making a bottom of the hole and a back surface of said dielectric substrate electrically continuous by a via, placing said cone/pyramid-shaped coil in the hole by directing a small-diameter side of said cone/pyramid-shaped coil toward the hole, electrically connecting the bottom of the hole and a tip-side lead wire extending from said cone/pyramid-shaped coil, to each other, and connecting an electrode on a large-diameter side of said cone/pyramid-shaped coil to an electrode on said dielectric substrate.