Abstract: A coil component includes a main body having a main surface, an inductor wiring conductor arranged in the main body, and an extended conductor arranged in the main body so as to extend toward the main surface and electrically connected to the inductor wiring conductor. The extended conductor includes an end surface exposed on the main surface of the main body and an extending portion integrally formed with the end surface and arranged so as to extend along and on the main surface.

Abstract: An inductor component comprising an element body having first and second magnetic layers laminated in order along a first direction; an inductor wire on a plane orthogonal to the first direction between the first and second magnetic layers and including side surfaces facing a direction orthogonal to the first direction; and a side surface insulating part made of a non-magnetic material covering only a part of the side surfaces. The first and second magnetic layers each include a flat magnetic powder and a resin containing the magnetic powder. The first magnetic layer exists in a direction opposite to the first direction with respect to the inductor wire. The second magnetic layer exists in the first direction and in a direction orthogonal to the first direction. The side surface insulating part is made of a material that is the same as that of the resin of the second magnetic layer.

Abstract: An inductor component comprising an element body having laminated insulating layers; a coil in the element body and wound into a helical shape advancing in a lamination direction of the insulating layers; and a substrate on an upper surface of the element body. The coil includes coil wirings along the lamination direction and wound along a plane orthogonal to the lamination direction, and a connection wiring connecting end portions of the coil wirings. The coil wirings include a winding part wound on the plane and a lead-out part from an end portion of the winding part to the connection wiring which is one of connection wirings arranged in the lamination direction. In the lamination direction, a lowest position of an upper surface of the connection wiring of the uppermost layer is lower than a bottom surface of the winding part in the coil wiring of the uppermost layer.

Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.

Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.

Abstract: An inductor component including a spiral wiring wound into a planar shape. A first magnetic layer and a second magnetic layer are located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring. A vertical wiring extending from the spiral wiring in the normal direction penetrates the inside of the first magnetic layer or the second magnetic layer.

Abstract: When an inductor component is adopted as an inductor for a DC-DC converter, high efficiency is achieved at a light load, and a large current is also handled. An inductor component includes a body containing metal magnetic powder containing an iron element, and an inductor provided in the body and having both ends exposed from the body. In a DC superposition characteristic curve of the inductor, a first steady region and a second steady region exist as a steady region, and a transition region exists between the first steady region and the second steady region.

Abstract: An inductor component includes a base body having a main surface, an inductor wiring extending in parallel to the main surface in the base body, a first vertical wiring, connected to a first end of the inductor wiring, that is exposed through the main surface, and a second vertical wiring, connected to a second end of the inductor wiring, that is exposed through the main surface. The base body has an upper magnetic layer disposed closer to the main surface than the inductor wiring. The first vertical wiring and the second vertical wiring have columnar shapes extending in a thickness direction while penetrating the upper magnetic layer. The dimension in the thickness direction of the penetration portion, which penetrates the upper magnetic layer, of the first vertical wiring is five times or more the maximum dimension in the thickness direction of the inductor wiring.

Abstract: A thin inductor component includes an element body having a principal surface and a side surface perpendicular to the principal surface. An inductor wire extends in parallel with the principal surface. From the inductor wire, a first vertical wire extends in a direction toward the principal surface, and a first support wire extends in parallel with the principal surface. The first vertical wire and the first support wire are connected to a first pad of the inductor wire. When a virtual tangent is drawn at a connection point of the inductor wire main body to the first pad with respect to the center axis of the wire main body when viewed from the thickness direction, the first support wire extends from the first pad in parallel with the virtual tangent and the center axis of the first support wire and the virtual tangent are located on different straight lines.

Abstract: The main face of an element body of an inductor component has a two-fold symmetrical shape with respect to the geometric center of the main face. First and second inductor wires extend inside the element body. Four terminal portions, each having a terminal portion exposed from the main face, are in the element body, two of the which are first external terminals, one a second external terminal, and one a dummy portion which is a specific dummy portion. The main face is divided into four congruent imaginary regions with one terminal portion in each. The terminal portion in the first imaginary region, that is an imaginary region at a two-fold symmetrical position around the geometric center with respect to the fourth imaginary region having the specific dummy portion, is a specific terminal portion. The shapes of the specific dummy and terminal portions are different from each other.

Abstract: A compact inductor component includes an element body having a principal surface. A first inductor wire and a second inductor wire extend in parallel with the principal surface in the element body. The number of turns of the second inductor wire is 0.25. The first inductor wire includes a first wire main body extending linearly. The second inductor wire includes a second wire main body extending linearly. The wire length of the second wire main body in the second inductor wire is 1.2 times or more the wire length of the first wire main body in the first inductor wire.

Abstract: An inductor component includes a rectangular parallelepiped element body inside which a inductor wire extends in the first layer. The inductor wire includes a wiring body extending linearly, and first and second pads at first and second ends, respectively, of the wiring body. Of the surface of the element body, the dimension of the upper main face in the thickness direction in the longitudinal direction is 2.5 times or more the dimension of the main face in the short direction. When viewed from the thickness direction, the smallest rectangular region that is divided by a long side extending in the longitudinal direction and a short side extending in the short direction and that surrounds the whole wiring body is defined as an inductor region. The dimension of the first side of the inductor region is three times or more the dimension of the second side of the inductor region.

Abstract: An inductor component that causes no electric current to be flowed between external terminals until the inductor component is mounted on a substrate, for example, and includes an element body and an inductor wire that extends in the inside of the element body. To the inductor wire, a first vertical wire is connected. The top surface of the first vertical wire is exposed from the principal surface of the element body. On the top surface of the first vertical wire, a first external terminal is stacked. The first external terminal has a first conducting portion and a first insulating portion. The first conducting portion is insulated from the outside of the element body by the first insulating portion.

Abstract: A DC/DC converter component has a reduced mounting area and includes an inductor component; a semiconductor integrated circuit including a switch circuit connected to the inductor component, and a control circuit that controls the switch circuit; and a package substrate, to which the semiconductor integrated circuit is mounted, having a mounting face that opposes an other substrate when the package substrate is mounted to the other substrate. The inductor component includes an element body, and a plurality of inductor wiring lines, each extending in the element body and in parallel with a main face of the element body. A value of inductance of a second inductor wiring line is 10% or more greater than a value of inductance of a first inductor wiring line. The inductor component has a dimension equal to or less than 0.25 millimeters in a thickness direction, and is mounted to the package substrate.

Abstract: A body of an inductor component includes a magnetic layer, a first insulating resin, a second insulating resin, and an insulating layer. First inductor wiring extends along a principal surface of the body, inside the magnetic layer. First vertical wiring is connected to an upper surface of a first pad of the first inductor wiring. An upper surface of the first vertical wiring is exposed without being obstructed by the principal surface. A first outer terminal is connected to the upper surface of the first vertical wiring and protrudes from the principal surface upward in a thickness direction. The first outer terminal includes a metal layer covering the upper surface of the first vertical wiring and a solder portion on an upper surface of the metal layer. An upper portion including a protruding distal end of the first outer terminal is the solder portion made of a tin alloy.

Abstract: An inductor component includes an air core coil in which an air core inductor wire is provided in an air core body containing a non-magnetic material, and a magnetic core coil in which a magnetic core inductor wire is provided in a magnetic core body containing a magnetic material. The air core body and the magnetic core body are combined or integrated. A magnetic material content in a peripheral region around the air core inductor wire is lower than 50%. The magnetic material content in a peripheral region around the magnetic core inductor wire is higher than or equal to 50%.

Abstract: An electronic component includes a composite body made of a composite material of resin and magnetic metal particles, an inner electrode which is provided in the composite body and which has an end surface exposed from an outer surface of the composite body, and a metal film provided on the outer surface of the composite body and on the end surface of the inner electrode. The metal film includes a first region provided on the end surface of the inner electrode and a second region which is in contact with the magnetic metal particles exposed at the outer surface of the composite body and which is provided on the outer surface of the composite body. The thickness of the first region is less than the thickness of the second region.

Abstract: An electronic component includes a composite body containing resin and magnetic metal particles, a first metal film provided on an outer surface of the composite body, and a second metal film provided on the first metal film. At least one of the magnetic metal particles is exposed at a contact surface of the composite body that is in contact with the first metal film. The first metal film is in contact with an exposed surface of the at least one of the magnetic metal particles exposed from the contact surface. The film thickness of the first metal film on the exposed surface is 2.9 ?m or more.

Abstract: A surface-mount passive component includes a passive element and a size conversion unit on which the passive element is mounted. The size conversion unit has a body, a plurality of first external terminals each of which is exposed on an element mount surface of the body and is electrically connected to a corresponding one of passive element external terminals of the passive element, a plurality of second external terminals exposed on a board-side mount surface of the body, and connection wires that electrically connect the first external terminals and the second external terminals. An area of the board-side mount surface is larger than an area of a first main surface of the passive element, and a total area of the plurality of second external terminals on the board-side mount surface is larger than a total area of the passive element external terminals on the first main surface.

Abstract: An inductor component includes a main body including a magnetic layer, an inductor wiring disposed in the main body, and vertical wirings each of which is connected to the inductor wiring and each of which extends from a portion in which the vertical wiring and the inductor wiring are connected to each other to a first main surface of the main body. A second main surface of the main body is located on the side of the inductor wiring that is opposite to the side of the inductor wiring on which the first main surface is located. The first main surface is covered with a first outer layer having an insulating property, and the second main surface is covered with a second outer surface having an insulating property. The first outer layer and the second outer layer each contain a colorant.