Inductor and electric power supply using it
AssigneeIbiden Co., Ltd.
InventorsYasuhiko Mano, Takashi Kariya, Shinobu Kato
Life of this patent
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Abstract
An inductor embedded in a printed wiring board includes a conductor extending in the thickness direction of a printed circuit board and a magnetic body that is in contact with the conductor with no gap therebetween. For example, the magnetic body is composed of ferrite having a cylindrical tubular shape. The conductor is composed of a copper film formed by plating on an inner peripheral surface of the cylindrical tubular ferrite. The inductor is inserted in the thickness direction of the printed wiring board.
Claims28
An inductor embedded in a printed wiring board, comprising:
- a magnetic body extending in a thickness direction of a printed wiring board and having a through-hole extending in the thickness direction of the printed wiring board;
- a conductor provided on an inner surface of the through-hole;
- and
- a dielectric material surrounding a side surface of the magnetic body.
An inductor embedded in a printed wiring board, comprising:
- a magnetic body provided in a core substrate of a printed wiring board and extending in a thickness direction of the core substrate, the magnetic body having a through-hole extending in the thickness direction of the core substrate;
- a conductor provided on an inner surface of the through-hole;
- and
- a dielectric material surrounding a side surface of the magnetic body.
Dependencies are inferred from the claim text.