公开(公告)号：US10204732B2

公开(公告)日：2019-02-12

申请号：US15179741

申请日：2016-06-10

Applicant: Analog Devices Global

Inventor： Patrick J. Murphy ,  Stephen O'Brien ,  Sarah Carroll ,  Bernard P. Stenson ,  Conor John Mcloughlin ,  Michal J. Osiak

IPC: H01F5/00 ,  H01F27/28 ,  H01L33/44 ,  H01L33/62 ,  H01B3/12 ,  H01B3/30 ,  H01B17/62 ,  H01B19/04 ,  H01F41/04

Abstract: An isolator device is provided comprising a body of first dielectric material between the first and second conductors, such as primary and secondary coils of a micro-transformer. A region of second dielectric material is provided between the body of first dielectric material and at least one of the first and second electrodes, wherein the second dielectric material has a higher relative permittivity than the first dielectric material. This provides enhances ability to withstand the Electric fields generated at the edge of a conductor. The body of the first dielectric can be tapered to provide stress relief to prevent the second dielectric material developing stress cracks.

公开(公告)号：US20180130867A1

公开(公告)日：2018-05-10

申请号：US15347724

申请日：2016-11-09

Applicant: Analog Devices Global

Inventor： Paul Lambkin ,  Michal J. Osiak ,  Brian Anthony Moane ,  Stephen O'Brien ,  Laurence Brendan O'Sullivan ,  Patrick J. Murphy ,  Patrick M. McGuinness ,  Bernard P. Stenson

IPC: H01L49/02 ,  H01F27/28 ,  H01F41/04

CPC classification number: H01L28/10 ,  H01F27/2804 ,  H01F27/2885 ,  H01F27/323 ,  H01F41/041 ,  H01F41/042 ,  H01F41/122 ,  H01F2019/085 ,  H01F2027/2809 ,  H01F2027/2819 ,  H01L23/5227

Abstract: A magnetic isolator is described. The magnetic isolator may comprise a top conductive coil, a bottom conductive coil, and a dielectric layer separating the top conductive coil from the bottom conductive coil. The top conductive coil may comprise an outermost portion having multiple segments. The segments may be configured to reduce the peak electric field in a region of the dielectric layer near the outer edge of the top conductive coil. The top conductive coil may comprise a first lateral segment, and a second lateral segment that is laterally offset with respect to the first lateral segment. The first lateral segment may be closer to the center of the top conductive coil than the second lateral segment, and may be closer to the bottom conductive coil than the second lateral segment. The magnetic isolator may be formed using microfabrication techniques.

公开(公告)号：US20170117084A1

公开(公告)日：2017-04-27

申请号：US15179741

申请日：2016-06-10

Applicant: Analog Devices Global

Inventor： Patrick J. Murphy ,  Stephen O'Brien ,  Sarah Carroll ,  Bernard P. Stenson ,  Conor John Mcloughlin ,  Michal J. Osiak

IPC: H01F27/28 ,  H01B3/12 ,  H01B19/04 ,  H01B3/30 ,  H01F41/04 ,  H01B17/62

CPC classification number: H01F27/2804 ,  H01B3/12 ,  H01B3/306 ,  H01B17/62 ,  H01B19/04 ,  H01F5/00 ,  H01F41/041 ,  H01L33/44 ,  H01L33/62

Abstract: An isolator device is provided comprising a body of first dielectric material between the first and second conductors, such as primary and secondary coils of a micro-transformer. A region of second dielectric material is provided between the body of first dielectric material and at least one of the first and second electrodes, wherein the second dielectric material has a higher relative permittivity than the first dielectric material. This provides enhances ability to withstand the Electric fields generated at the edge of a conductor. The body of the first dielectric can be tapered to provide stress relief to prevent the second dielectric material developing stress cracks.