Tdk Corporation

Junichiro Urabe

Yuto Shiga

Kazuya Tobita

Youichi Kazuta

Noriaki Hamachi

Toshinori Matsuura

Yuichi Takubo

Takekazu Yamane

Atsushi Shimura

Tetsuya Shibata

Tsuyoshi Suzuki

Munehiro Takaku

Hajime Kato

Nobuyuki Okuzawa

Kazuhiko Ito

Asami Takahashi

So Kobayashi

Xuran Guo

Shunya Suzuki

A multilayer coil component includes an element body, a coil, and an external terminal. The element body includes a plurality of insulator layers that is laminated. The coil is disposed in the element body. The external terminal includes a plurality of conductor layers that is laminated. The external terminal is electrically connected to the coil. The element body includes a main face and a first side face adjacent to the main face. The external terminal is embedded in the element body in such a way as to be separated from the first side face and exposed from the main face. The external terminal includes a first separated face that is separated from the first side face as being separated from the main face.

Multilayer coil component

A multilayer coil componentincludes an element body, a coil, a first terminal electrode, a second terminal electrode, a first connection conductor, and a second connection conductor. The coilincludes a first coil portionthat has one end of the coiland is disposed on a side of a main surfaceand a second coil portionthat has the other end of the coiland is disposed on a side of the main surface. A distance Lbetween the first connection conductorand the second coil portionis larger than a distance Lbetween the first connection conductorand the first coil portion

Disclosed herein is a coil component that includes a resin body having a first resin-based insulating material and a second resin-based insulating material lower in relative permittivity than the first resin-based insulating material, a coil pattern embedded in the resin body and helically wound in a plurality of turns, and first and second terminal electrodes formed on a surface of the resin body and connected respectively to one and other ends of the coil pattern. The coil pattern has a part covered with the first resin-based insulating material and another part covered with the second resin-based insulating material.

Coil component

In a multilayer coil component, a coil is disposed in an element body. The coil includes a plurality of coil conductors. The plurality of coil conductors include first, second, and third end portions. The first, second, and third end portions are exposed from the element body on a first surface and connected to a first external electrode. The first, second, and third end portions are arranged in order in a first direction when viewed from a second direction along the first surface and orthogonal to the first direction. The first end portion and the third end portion overlap each other when viewed from the first direction at least in part. Each of the first end portion and the third end portion has a region not overlapping the second end portion when viewed from the first direction.

A multilayer coil component includes: a through hole connecting portion electrically connecting an end portion of the coil portion and the external terminal, in which a coil pattern and a through hole pattern are formed in each of the plurality of layers, the through hole connecting portion is formed by mutually joining a plurality of the through hole patterns in the lamination direction, the through hole pattern in at least one first layer among the plurality of layers is shifted with respect to the through hole pattern in another second layer when viewed from the lamination direction, and, when viewed from the lamination direction, a distance between the through hole pattern in the first layer and a coil pattern in the first layer is farther than a distance between the through hole pattern in the second layer and the coil pattern in the first layer.

A coil component includes an exterior body, a coil, and a pair of terminal electrodes. The coil is disposed inside the exterior body. The pair of terminal electrodes are electrically connected to the coil and are disposed on the exterior body. The exterior body includes a first portion that covers the coil and is made of a resin, and a second portion including a side surface on which the pair of terminal electrodes are disposed. The second portion includes a material having a relative permittivity lower than a relative permittivity of the resin and is disposed between the coil and the pair of terminal electrodes.

Coil component and method for making coil component

A multilayer inductor includes: an element body formed by stacking a plurality of layers of insulators in a stacking direction; a terminal electrode provided on at least one side surface of the element body; and a linear conductor portion provided in the element body and extending in a first direction, wherein, as viewed from a second direction perpendicular to the first direction, the conductor portion has a first portion in a region overlapping the terminal electrode and a second portion in a region not overlapping the terminal electrode, and wherein a width of the first portion as viewed from the second direction is smaller than a width of the second portion.

Multilayer inductor and mounting structure of multilayer inductor

Disclosed herein is a coil component that includes a coil pattern embedded in an element body and helically wound in a plurality of turns. The element body includes a support body having a cavity formed therein and a first insulating layer stacked on the support body so as to cover the cavity, thereby forming a hollow space inside the element body. The coil pattern includes a plurality of first sections formed along an inner wall of the cavity and a plurality of second sections formed on the first insulating layer. One ends of the plurality of first sections are connected respectively to their corresponding one ends of the plurality of second sections. The other ends of the plurality of first sections are connected respectively to their corresponding other ends of the plurality of second sections.

Coil component and manufacturing method therefor

A multilayer coil component includes an element body, a coil, and a terminal electrode. The element body includes a first main face, second main face, first end face, second end face, first side face and second side face. The terminal electrode is connected to the coil. The terminal electrode includes a main-face electrode portion provided on the first main face. The coil includes a plurality of coil conductors. The plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor. The first coil conductor has a width narrower than a width of the second coil conductor. The first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor.

Disclosed herein is a coil component that includes a coil pattern embedded in a resin body. The resin body includes a winding core area surrounded by the coil pattern and having a first surface and a substantially flat second surface different in the circumferential direction position from the first surface, and a first surrounding area covering the first surface of the winding core area. The coil pattern includes first sections extending along the first surface of the winding core area and second sections extending along the second surface of the winding core area. One ends of the first sections are connected respectively to their corresponding one ends of the second sections. The other ends of the first sections are connected respectively to their corresponding other ends of the second sections.

In a coilof a multilayer coil component, an end portionof a turnclosest to a side surfacein the facing direction of the side surfaceand a side surfaceis connected to a first external electrodeand an end portionof a turnclosest to the side surfacein the facing direction is connected to a second external electrode. When viewed from the facing direction, the area of the region where the turnand the second external electrodeface each other and the area of the region where the turnand the first external electrodeface each other are larger than the area of the region where turns other than the turnand the turnand the first external electrodeor the second external electrodeface each other.

A multilayer coil component includes an element body, a coil disposed in the element body, and a terminal electrode disposed on the element body. The element body has a first side face and a second side face, a first end face and a second end face, and a first main face and a second main face. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion has a first exposed face exposed on the first main face. The second electrode portion has a second exposed face exposed on the first end face. The first exposed face and the second exposed face are adjacent to each other interposing a ridge portion. The first exposed face is separated from an outer edge of the first main face. The second exposed face is separated from an outer edge of the first end face.

In a coilof a multilayer coil component, an end portionof a turnclosest to a side surfacein the facing direction of the side surfaceand a side surfaceis connected to a first external electrodeand an end portionof a turnclosest to the side surfacein the facing direction of the pair of side surfacesandis connected to a second external electrode. The area at which the turnfaces the second external electrodeand the area at which the turnfaces the first external electrodeare smaller than the area at which turnsandother than the turnand the turnface the first external electrodeor the second external electrode

A multilayer coil componentincludes an element body, a pair of terminal electrodes, and a glass layer G provided on the terminal electrode. Each of the pair of terminal electrodesis provided with a plurality of first projecting portionstapered toward the other facing terminal electrodeside in an end portionfacing the side in the facing direction of a pair of end surfacesand. The glass layer G is provided along the edge of the terminal electrodeincluding at least the first projecting portionin the end portionof the terminal electrode

Multilayer coil component and mounted structure of the multilayer coil component

A magnetoresistive effect device includes an input port, an input-side signal line, an MR unit including a magnetoresistive effect element and a magnetic-field generating signal line, and an output unit including a magnetoresistive effect element, an output-side signal line, and an output port. The magnetoresistive effect device further includes a DC application terminal. The magnetoresistive effect element is connected to the output port via the output-side signal line in the output unit. The input-side signal line is arranged so that a high frequency magnetic field generated from the input-side signal line is applied to the magnetoresistive effect element in the MR unit. In the MR unit, the magnetoresistive effect element is connected to the magnetic-field generating signal line. The magnetic-field generating signal line is arranged so that a high-frequency magnetic field generated from magnetic-field generating signal line is applied to the magnetoresistive effect element in the output unit.

Growing community of inventors

Tokyo, Japan

Junichiro Urabe