公开(公告)号：US20210375527A1

公开(公告)日：2021-12-02

申请号：US17329348

申请日：2021-05-25

Applicant: TDK CORPORATION

Inventor： Masashi SHIMOYASU ,  Daiki KATO ,  Yoji TOZAWA ,  Takashi ENDO ,  Seiichi NAKAGAWA ,  Mitsuru ITO ,  Kenta SASAKI ,  Akihiko OIDE ,  Makoto YOSHINO ,  Kazuhiro EBINA

IPC: H01F27/29 ,  H01F27/28 ,  H01F41/04

Abstract: A multilayer inductor component includes an element body, an internal conductor, and an external electrode. The internal conductor is disposed in the element body. The external electrode is disposed on a surface of the element body and electrically connected to the internal conductor. The external electrode includes a sintered metal layer and a plating layer. The sintered metal layer is disposed on the surface of the element body. The plating layer covers the sintered metal layer. The sintered metal layer includes a thick portion and thin portions. The thick portion covers the surface of the element body. A plurality of glass particles is dispersed in the thick portion. The thin portions cover glass particles exposed on a surface of the thick portion among the plurality of glass particles and being in contact with the plating layer.

公开(公告)号：US20190123705A1

公开(公告)日：2019-04-25

申请号：US16160489

申请日：2018-10-15

Applicant: TDK CORPORATION

Inventor： Akihiko OIDE ,  Yoji TOZAWA ,  Seiichi NAKAGAWA ,  Shinichi KONDO ,  Takashi ENDO ,  Makoto YOSHINO ,  Noriaki HAMACHI

IPC: H03H7/01 ,  H01G4/228 ,  H01G4/008 ,  H03H1/00 ,  H01G4/38 ,  H01G4/40 ,  H01F27/28 ,  H01F27/29 ,  H01F27/32 ,  H01F27/40

Abstract: An element body includes a first function portion including a first material, a second function portion including a second material different from the first material, and an intermediate portion placed between the first function portion and the second function portion. The intermediate portion includes a first component included in the first material, and a second component included in the second material. A side surface of the element body includes surfaces of the first function portion, the second function portion, and the intermediate portion. Each of terminal electrodes includes electrode portion formed on the side surface across the surfaces of the first function portion, the second function portion, and the intermediate portion. An insulating layer is formed on the side surface in such a manner as to be in contact with at least a region exposed from the electrode portions between the electrode portions in the surface of the intermediate portion.

公开(公告)号：US20180096789A1

公开(公告)日：2018-04-05

申请号：US15725129

申请日：2017-10-04

Applicant: TDK CORPORATION

Inventor： Yuya OSHIMA ,  Makoto YOSHINO ,  Yoji TOZAWA ,  Junichi OTSUKA ,  Kazuo IWAI ,  Yohei TADAKI ,  Shinichi KONDO ,  Kazuhiro EBINA ,  Mamoru KAWAUCHI

IPC: H01F41/04 ,  H01F27/28

CPC classification number: H01F41/043 ,  H01F17/0013 ,  H01F27/2804 ,  H01F41/046 ,  H01F2017/0066

Abstract: A method of manufacturing a laminated coil component is a method of manufacturing a laminated coil component provided with a laminate obtained by laminating a coil conductor forming a spiral coil and an insulator layer. The method of manufacturing a laminated coil component includes a step of providing a conductor pattern configured to become a coil conductor on a green sheet configured to become an insulator layer, and a step of laminating a plurality of green sheets provided with the conductor pattern. The conductor pattern includes a pair of first side surfaces opposed to each other in an orthogonal direction orthogonal to a laminating direction of the green sheet. At the step of laminating a plurality of green sheets, a depression is formed on at least one of the pair of first side surfaces.

公开(公告)号：US20130257576A1

公开(公告)日：2013-10-03

申请号：US13757134

申请日：2013-02-01

Applicant: TDK CORPORATION

Inventor： Masazumi ARATA ,  Yoji TOZAWA ,  Takashi ENDO ,  Toshiki SATOH ,  Takuya KAMEI

IPC: H01F27/28

CPC classification number: H01F27/2804 ,  H01F17/0013 ,  H01F27/292

Abstract: A multilayer coil component has an element body, a coil, a pair of first external electrodes, a pair of second external electrodes, a first connection conductor, and a second connection conductor. The coil is composed of a plurality of internal conductors arranged in the element body and connected to each other. The first external electrodes are arranged on a first principal face of the element body. The second external electrodes are arranged on the first principal face. The first connection conductor is arranged between the coil and the first external electrodes in the element body and is connected to one end of the coil and to the first external electrodes. The second connection conductor is arranged between the coil and the second external electrodes in the element body and is connected to the other end of the coil and to the second external electrodes.

Abstract translation: 多层线圈部件具有元件主体，线圈，一对第一外部电极，一对第二外部电极，第一连接导体和第二连接导体。 线圈由布置在元件体中并连接的多个内部导体构成。 第一外部电极布置在元件主体的第一主面上。 第二外部电极设置在第一主面上。 第一连接导体配置在线圈与元件主体的第一外部电极之间，并且与线圈的一端和第一外部电极连接。 第二连接导体布置在元件体中的线圈和第二外部电极之间，并且连接到线圈的另一端和第二外部电极。