公开(公告)号：US20210219430A1

公开(公告)日：2021-07-15

申请号：US17134316

申请日：2020-12-26

Applicant: TDK CORPORATION

Inventor： Yuichiro OKUYAMA ,  Takeshi OOHASHI ,  Hajime KUWAJIMA ,  Takashi OHTSUKA ,  Kazuhiro YOSHIKAWA ,  Kenichi YOSHIDA

IPC: H05K1/16 ,  H05K1/02

Abstract: Disclosed herein is an electronic component that includes a substrate and a plurality of conductive layers and a plurality of insulating layers which are alternately laminated on the substrate. The side surface of at least one of the plurality of insulating layers has a recessed part set back from a side surface of the substrate and a projecting part projecting from the recessed part.

公开(公告)号：US20150351243A1

公开(公告)日：2015-12-03

申请号：US14700718

申请日：2015-04-30

Applicant: TDK CORPORATION

Inventor： Shinichiro TODA ,  Hajime KUWAJIMA

IPC: H05K1/18

CPC classification number: H03H7/0115 ,  H01F17/0013 ,  H01F27/292 ,  H01F2017/0026 ,  H01F2017/0066 ,  H03H7/075 ,  H03H7/1708 ,  H03H7/1758 ,  H03H2001/0085

Abstract: An LC composite component includes one or more inductors, one or more capacitors, a magnetic layer, and a substrate. The substrate has a first surface, and a second surface opposite to the first surface. The magnetic layer is disposed to face the first surface of the substrate. The one or more inductors are disposed between the first surface of the substrate and the magnetic layer. The substrate has a thickness greater than that of the magnetic layer in a direction perpendicular to the first surface of the substrate. The substrate has a complex permeability having a real part and an imaginary part that are respectively smaller than the real part and the imaginary part of the complex permeability of the magnetic layer.

Abstract translation: LC复合元件包括一个或多个电感器，一个或多个电容器，磁性层和衬底。 衬底具有第一表面和与第一表面相对的第二表面。 磁性层设置成面对衬底的第一表面。 一个或多个电感器设置在基板的第一表面和磁性层之间。 基板的厚度大于垂直于基板的第一表面的方向上的磁性层的厚度。 基板具有复磁导率，其实部和虚部分别小于磁性层的复磁导率的实部和虚部。

公开(公告)号：US20210225593A1

公开(公告)日：2021-07-22

申请号：US17143581

申请日：2021-01-07

Applicant: TDK CORPORATION

Inventor： Kazuhiro YOSHIKAWA ,  Kenichi YOSHIDA ,  Takashi OHTSUKA ,  Yuichiro OKUYAMA ,  Takeshi OOHASHI ,  Hajime KUWAJIMA

IPC: H01G4/30 ,  H01G4/08 ,  H01G4/012

Abstract: Disclosed herein is an electronic component that includes a substrate; and a plurality of conductive layers and a plurality of insulating layers which are alternately laminated on the substrate. The side surface of a predetermined one of the plurality of insulating layers has a recessed part set back from a side surface of the substrate and a projecting part projecting from the recessed part. The recessed part is covered with a first dielectric film made of an inorganic insulating material.

公开(公告)号：US20210407737A1

公开(公告)日：2021-12-30

申请号：US17330929

申请日：2021-05-26

Applicant: TDK CORPORATION

Inventor： Hajime KUWAJIMA ,  Takashi OHTSUKA ,  Takeshi OOHASHI ,  Yuichiro OKUYAMA

IPC: H01G4/18 ,  H01G4/40 ,  H01G4/228

Abstract: Disclosed herein is an electronic component that includes a substrate, a planarizing layer covering a surface of the substrate, a first conductive layer formed on the planarizing layer and having a lower electrode, a dielectric film made of a material different from that of the planarizing layer and covering the planarizing layer and first conductive layer, an upper electrode laminated on the lower electrode through the dielectric film, and a first insulating layer covering the first conductive layer, dielectric film, and upper electrode. An outer periphery of the first insulating layer directly contacts the planarizing layer without an intervention of the dielectric film.

公开(公告)号：US20150180112A1

公开(公告)日：2015-06-25

申请号：US14638803

申请日：2015-03-04

Applicant: TDK Corporation

Inventor： Hajime KUWAJIMA ,  Toshiyasu FUJIWARA ,  Naoto OHYAMA ,  Yoshikazu TSUYA ,  Masami SASAKI

IPC: H01P5/18 ,  H04B1/04 ,  H04B1/00 ,  H03H7/01

CPC classification number: H01P5/18 ,  H03H7/0138 ,  H04B1/0053 ,  H04B1/0458

Abstract: A directional coupler according to the present invention includes a primary line for transmitting a transmission signal; an input port for inputting the transmission signal to the primary line; an output port for outputting the transmission signal from the primary line; a secondary line for electromagnetically coupling with the primary line to extract part of the transmission signal; a coupling port provided at one end of the secondary line; an isolation port provided at the other end of the secondary line; and a low pass filter unit having a function of low pass filter, disposed between the secondary line and the coupling port.

Abstract translation: 根据本发明的定向耦合器包括用于发送发送信号的主线路; 用于将传输信号输入到主线路的输入端口; 输出端口，用于从主线路输出发送信号; 用于与主线电磁耦合以提取部分传输信号的次级线路; 耦合端口，设置在所述次级线路的一端; 设置在次级线路的另一端的隔离端口; 以及具有低通滤波器功能的低通滤波器单元，设置在二次线路和耦合端口之间。