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: 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 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 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: 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: 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.

Abstract: An inductor component is configured such that a lower surface of a first magnetic layer serves as a first terminal surface. A first inductor wire is disposed in the first magnetic layer. The first inductor wire is cylindrical and extends in an up-down direction. A boundary portion is connected to a first internal terminal of the first inductor wire. An upper surface of a second magnetic layer serves as a second terminal surface. A second inductor wire is disposed in the second magnetic layer. The second inductor wire is columnar and extends in the up-down direction. A second internal terminal of the second inductor wire is connected to the boundary portion. The boundary portion serves as a physical boundary between the first inductor wire and the second inductor wire.

Abstract: In an inductor component, an inductor wire is formed inside a main body. The inductor wire has a circular columnar body extending in the height direction. An end surface of the inductor wire at a first end in the wire extending direction serves as a first external terminal and is exposed at a first terminal surface of the main body. The first external terminal is exposed only at the first terminal surface. An end surface of the inductor wire at a second end in the wire extending direction serves as a second external terminal and is exposed at a second terminal surface of the main body. The second external terminal is exposed only at the second terminal surface.

Abstract: In an inductor component, an inductor wire is in an element body and extends on a virtual flat plane passing inside the element body. A wire main body of the inductor wire has an oblong rectangular shape elongated in a length direction in the top view, and thus, a wire width perpendicular to the extending direction is constant. From each edge of the wire main body in a width direction, protrusions having an oblong rectangular shape in the top view protrude and extend, from a center of the wire main body in the extending direction of the wire main body, in a direction perpendicular to the extending direction, on both sides in the width direction of the wire main body, with the extending direction sandwiched between the protrusions. An area ratio of a protrusion area of the protrusions to an area of the wire main body is within 7.2%.

Abstract: The inductor component includes a first magnetic layer, an inductor wiring line laminated on a main face of the first magnetic layer, a second magnetic layer disposed in the same layer as the inductor wiring line, a third magnetic layer disposed on a main face of the inductor wiring line and the second magnetic layer on a side opposite to the first magnetic layer, and an insulation layer being a non-magnetic material in contact with part of a surface of the inductor wiring line. The entire face of the surface of the inductor wiring line on the first magnetic layer side is in contact with the first magnetic layer, and a face of the surface of the inductor wiring line on the second magnetic layer side is in contact with the insulation layer.

Abstract: An inductor component including a magnetic layer in which a magnetic metal powder is dispersedly present in a base material made of an insulation material and an inductor wiring line laminated on a surface of the magnetic layer. The inductor wiring line includes an anchor portion extending from a main face of the inductor wiring line on a side of the magnetic layer and covering a surface of the magnetic metal powder in the magnetic layer.

Abstract: An inductor component includes a main body including a magnetic layer, an inductor wire provided in the main body, at least one first electrode wire provided in the main body and in contact with the inductor wire and extending from its contact portion toward a first main surface of the main body, and at least one second electrode wire provided in the main body and in contact with the inductor wire and extending from its contact portion toward a second main surface of the main body. A first external terminal of the at least one first electrode wire contains a metal material different from a metal material contained in a second external terminal of the at least one second electrode wire.

Abstract: An inductor component includes a body that includes a magnetic layer, an inductor wire that is provided in the body, and a vertical wire that is provided in the body and that extends to a first principal surface from a contact portion of the vertical wire that is in contact with the inductor wire. The vertical wire is in contact with the inductor wire in such a manner as to extend over a first side surface and a third side surface of the inductor wire.

Abstract: A coil component including 2N coils, N being an integer of two or more, wherein the 2N coils are configured to form N pairs, and wherein when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils.

Abstract: An inductor array component including an element body and a first straight wiring line and a second straight wiring line that are arranged on the same plane inside the element body. The element body includes a first region that is located on a first side of the first straight wiring line or the second straight wiring line in a normal direction that is normal to the plane, a second region that is located on a second side of the first straight wiring line or the second straight wiring line in the normal direction that is normal to the plane, and a third region that is located between the first straight wiring line and the second straight wiring line. The greater one out of the magnetoresistance of the first region and the magnetoresistance of the second region is greater than or equal to the magnetoresistance of the third region.

Abstract: An inductor component includes a main body formed in a flat-plate shape and including a magnetic layer; an inductor wiring line disposed on a plane inside the main body; a first vertical wiring line that extends, from a pad portion which is an end portion of the inductor wiring line, in a first direction to pass through the inside of the main body, and is exposed on a first principal surface side of the main body; a second vertical wiring line that extends, from the pad portion of the inductor wiring line, in a second direction to pass through the inside of the main body, and is exposed on a second principal surface side of the main body; and an insulation layer of a non-magnetic body. The first vertical wiring line includes a via conductor and a columnar wiring line. The second vertical wiring line includes a columnar wiring line.

Abstract: An inductor array component includes a substantially flat plate-shaped main body including a magnetic layer having resin and metal magnetic powder contained in the resin, a first inductor wiring and a second inductor wiring disposed on the same plane in the main body and adjacent to each other, and a plurality of first vertical wirings extending in a first direction of a normal direction with respect to the plane so as to penetrate through inside of the main body and being exposed on a side of a first main surface of the main body. Also, the inductor array component includes a plurality of second vertical wirings extending in a second direction of the normal direction with respect to the plane so as to penetrate through the inside of the main body and being exposed on a side of a second main surface of the main body.

Abstract: An inductor component includes first and second inductor wiring lines, a first vertical wiring line, a second vertical wiring line, and a third vertical wiring line, wherein the first vertical wiring line and the second vertical wiring line are connected to the first end portion and the second end portion of the first inductor wiring line, respectively, and the third vertical wiring line and the second vertical wiring line are connected to the first end portion and the second end portion of the second inductor wiring line, respectively.