公开(公告)号：EP2958144B1

公开(公告)日：2017-05-03

申请号：EP15172272

申请日：2015-06-16

Applicant: ST MICROELECTRONICS SRL

Inventor： PALUMBO VINCENZO ,  GHIDINI GABRIELLA ,  CAROLLO ENZO ,  TOIA FABRIZIO FAUSTO RENZO

IPC: H01L27/08 ,  H01F17/00 ,  H01F27/28 ,  H01F27/32 ,  H01F41/063 ,  H01L23/522 ,  H01L23/64

CPC classification number: H01F27/32 ,  H01F27/2804 ,  H01F27/323 ,  H01F41/063 ,  H01F2027/2809 ,  H01L23/5227 ,  H01L23/645 ,  H01L27/08 ,  H01L2924/0002 ,  Y10T29/49021 ,  H01L2924/00

Abstract: An integrated transformer (105; 205) integrated transformer comprises a primary winding (135) and a secondary winding (140), of metallic material and having a spiral planar arrangement comprising a corresponding plurality of coils (137; 142). A dielectric portion (145) of dielectric material is arranged between the primary winding and the secondary winding. A field plate winding (150) is electrically coupled with the primary winding. The field plate winding comprises at least one field plate coil (152a) having a lateral extension ( xa ) greater than a lateral extension (xb) of a primary outer coil (137a) of the primary winding with the at least one field plate coil superimposed, in plan view, to the primary outer coil of the primary winding. The field plate winding is configured to mutually separate equipotential surfaces of an operating electric field ( E1; E2 ) at a secondary winding facing edge (139) of the primary outer coil of the primary winding.

Abstract translation: 集成变压器（105; 205）集成变压器包括金属材料的初级绕组（135）和次级绕组（140）并且具有包括对应的多个线圈（137; 142）的螺旋平面布置。 介电材料的介电部分（145）被布置在初级绕组和次级绕组之间。 场板绕组（150）与初级绕组电耦合。 场板绕组包括至少一个场板线圈（152a），其具有大于初级绕组的初级外线圈（137a）的横向延伸（xb）的横向延伸（xa），其中至少一个场板线圈叠加 在平面图中，与初级绕组的初级外线圈相连。 场板绕组被配置为在初级绕组的初级外线圈的次级绕组面对边缘（139）处相互分离工作电场（E1; E2）的等电位面。