公开(公告)号：US20180366834A1

公开(公告)日：2018-12-20

申请号：US15780403

申请日：2016-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael S. Graff ,  Seong-Woo Woo ,  Chuang Wei Chiu

IPC: H01Q17/00

CPC classification number: H01Q17/00 ,  H01F1/15333 ,  H01F1/24 ,  H01F27/365 ,  H01F38/14 ,  H01P1/365 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q7/06

Abstract: A magnetic isolator includes a dielectric film having a layer of electrically-conductive soft magnetic material bonded thereto. The layer of electrically-conductive soft magnetic material comprises substantially coplanar electrically-conductive soft magnetic islands separated one from another by a network of interconnected gaps. The interconnected gaps are at least partially filled with a thermoset dielectric material. The network of interconnected gaps at least partially suppresses electrical eddy current induced within the layer of soft magnetic material when in the presence of applied external magnetic field. An electronic device including the magnetic isolator and a method of making the magnetic isolator are also disclosed.

公开(公告)号：US10587049B2

公开(公告)日：2020-03-10

申请号：US15780403

申请日：2016-11-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael S. Graff ,  Seong-Woo Woo ,  Chuang Wei Chiu

IPC: H01Q17/00 ,  H01F1/153 ,  H01F27/36 ,  H01F1/24 ,  H01Q1/38 ,  H01P1/365 ,  H01Q7/06 ,  H01F38/14 ,  H01Q7/00

Abstract: A magnetic isolator includes a dielectric film having a layer of electrically-conductive soft magnetic material bonded thereto. The layer of electrically-conductive soft magnetic material comprises substantially coplanar electrically-conductive soft magnetic islands separated one from another by a network of interconnected gaps. The interconnected gaps are at least partially filled with a thermoset dielectric material. The network of interconnected gaps at least partially suppresses electrical eddy current induced within the layer of soft magnetic material when in the presence of applied external magnetic field. An electronic device including the magnetic isolator and a method of making the magnetic isolator are also disclosed.