Patent ID: 9396874
Filing Date: 2016-07-19
CPC Classification: H01F,Y10T

Claim Text:
1. A method of manufacturing a coil substrate, comprising: forming a plurality of structures, each of the structures including a first insulating layer and a metal layer formed on the first insulating layer; forming a stacked structure by stacking the structures while connecting the metal layers of the adjacent structures in series; and shaping the stacked structure such that the metal layers of the structures are shaped at the same time to be in shapes of wirings, each becomes a part of a spiral-shaped coil, to form the spiral-shaped coil in which the wirings of the adjacent structures are connected in series, wherein in the shaping, unnecessary parts of each of the structures are removed at the same time such that an outer shape of each of the metal layers is shaped at the same time and a through hole around which the spiral-shaped coil is formed is provided among the metal layers at the same time.