Coil device
AssigneeSumitomo Electric Printed Circuits, Inc.
InventorMichi OGATA
Life of this patent
Estimating the term…
Abstract
A coil device includes at least one printed wiring board. Each of the at least one printed wiring board has a first base film having a first main surface and a second main surface opposite to the first main surface, and a first wire disposed on the first main surface. The first wire has a plurality of first coil portions arranged along a first direction in a plan view. Each of the plurality of first coil portions is constituted by the first wire wound spirally in a plan view, and has a first straight portion and a second straight portion, and a first connection portion and a second connection portion. In a plan view, the first wire at the first straight portion and the first wire at the second straight portion extend along a second direction orthogonal to the first direction.
Claims9
A coil device comprising at least one printed wiring board, wherein
- each of the at least one printed wiring board has a first base film having a first main surface and a second main surface opposite to the first main surface, and a first wire disposed on the first main surface,
- the first wire has a plurality of first coil portions arranged along a first direction in a plan view,
- each of the plurality of first coil portions is constituted by the first wire wound spirally in a plan view, and has a first straight portion and a second straight portion, and a first connection portion and a second connection portion,
- in a plan view, the first wire at the first straight portion and the first wire at the second straight portion extend along a second direction orthogonal to the first direction,
- the first straight portion has a first end portion and a second end portion which are both end portions in the second direction,
- the second straight portion has a third end portion and a fourth end portion which are both end portions in the second direction,
- the first connection portion connects the first end portion and the third end portion,
- the second connection portion connects the second end portion and the fourth end portion, and
- a sum of a width in the second direction of the first connection portion and a width in the second direction of the second connection portion is smaller than a sum of a width in the first direction of the first straight portion and a width in the first direction of the second straight portion.
Dependencies are inferred from the claim text.