公开(公告)号：US11516951B2

公开(公告)日：2022-11-29

申请号：US16876583

申请日：2020-05-18

申请人： TDK CORPORATION

发明人： Takashi Yamada ,  Atsushi Sato ,  Makoto Orikasa ,  Hideharu Moro

IPC分类号： H01L23/552 ,  H05K9/00

摘要： A noise suppression sheet comprises at least one composite layer, the composite layer including: an insulating resin layer; a non-magnetic metal layer formed on the insulating resin layer; and a metal magnetic layer formed on the non-magnetic metal layer, and the composite layer has a through hole. When the noise suppression sheet comprises a plurality of composite layers, the through holes are misaligned in adjacent composite layers in the laminating direction.

公开(公告)号：US11765874B2

公开(公告)日：2023-09-19

申请号：US16932046

申请日：2020-07-17

申请人： TDK CORPORATION

发明人： Takashi Yamada ,  Miyuki Yanagida ,  Atsushi Sato ,  Kenichi Kawabata

IPC分类号： C25D3/56 ,  H05K9/00 ,  C25D7/00

CPC分类号： H05K9/0083 ,  C25D3/562 ,  H05K9/0088 ,  C25D7/001

摘要： A method of forming a metal magnetic film includes forming the metal magnetic film by a plating process, wherein the metal magnetic film comprises a permalloy and carbon atoms and a content of the carbon atoms is 0.3 to 3.0 at % based on a total amount of the carbon atoms and metal elements.

公开(公告)号：US11613100B2

公开(公告)日：2023-03-28

申请号：US16876560

申请日：2020-05-18

申请人： TDK CORPORATION

发明人： Takashi Yamada ,  Atsushi Sato ,  Makoto Orikasa

IPC分类号： B32B15/01 ,  B32B7/025

摘要： A noise suppression sheet comprises a pair of metal magnetic layers and a non-magnetic metal layer interposed between the pair of metal magnetic layers, and can achieve high magnetic shield characteristics on both surfaces.

公开(公告)号：US11419250B2

公开(公告)日：2022-08-16

申请号：US16876882

申请日：2020-05-18

申请人： TDK CORPORATION

发明人： Takashi Yamada ,  Atsushi Sato ,  Makoto Orikasa ,  Hideharu Moro

IPC分类号： H05K9/00

摘要： A noise suppression sheet comprises a non-magnetic metal layer, a plurality of metal magnetic layers, and a plurality of insulating layers, and the metal magnetic layer and the insulating layer are alternately laminated on the non-magnetic metal layer. The noise suppression sheet can absorb and suppress noise generated from a circuit or the like in an electronic component by being mounted on the electronic component or the like. In the noise suppression sheet, noise is absorbed by each of the metal magnetic layers. Noise that is transmitted without being absorbed by the metal magnetic layer can be reflected by the non-magnetic metal layer and can be absorbed again by the metal magnetic layer, and hence the noise suppression sheet can suppress noise effectively.

公开(公告)号：US10448546B1

公开(公告)日：2019-10-15

申请号：US16143881

申请日：2018-09-27

申请人： TDK CORPORATION

发明人： Takashi Yamada ,  Miyuki Yanagida ,  Atsushi Sato ,  Kenichi Kawabata

IPC分类号： H05K9/00 ,  H01F1/147

摘要： Disclosed is a noise suppression sheet 1 including a resin layer 2, a non-magnetic metal layer 3, and a metal magnetic layer 4 in this order.