公开(公告)号：US20230307531A1

公开(公告)日：2023-09-28

申请号：US18122918

申请日：2023-03-17

Applicant: Infineon Technologies AG

Inventor： Roman Baburske ,  Frank Pfirsch ,  Jana Hänsel ,  Katja Waschneck

IPC: H01L29/739 ,  H01L29/10 ,  H03K17/567

CPC classification number: H01L29/7397 ,  H01L29/1095 ,  H03K17/567

Abstract: A power semiconductor device includes: a semiconductor body coupled to first and second load terminals; an active region with first and second sections, both configured to conduct a load current between the load terminals; electrically isolated from the load terminals, first control electrodes in the first section and second control electrodes in both the first and second sections); and semiconductor channel structures in the semiconductor body extending in both the first and second sections. Each channel structure is associated to at least one of the first and second control electrodes. The respective control electrode is configured to induce an inversion channel for load current conduction in the associated semiconductor channel structure. The first section exhibits a first effective total inversion channel width per unit area ratio, W/A1, and the second section exhibits a second effective inversion channel width per unit area ratio, W/A2, where W/A1>W/A2.

公开(公告)号：US20230275576A1

公开(公告)日：2023-08-31

申请号：US18115080

申请日：2023-02-28

Applicant: Infineon Technologies AG

Inventor： Roman BABURSKE ,  Frank Pfirsch ,  Jana HÃNSEL ,  Katja Waschneck

IPC: H03K17/0812 ,  H01L29/16 ,  H01L29/739 ,  H01L29/06

CPC classification number: H03K17/08128 ,  H01L29/1608 ,  H01L29/7397 ,  H01L29/0696

Abstract: A semiconductor switching module includes an insulated gate bipolar transistor and a unipolar switching device. The insulated gate bipolar transistor includes a first transistor cell and a supplemental cell, wherein the first transistor cell includes a first gate and a first source and wherein the supplemental cell includes a second gate and a supplemental electrode. The unipolar switching device is based on a wide bandgap material and includes a third gate and a third source. The third gate and the second gate are electrically connected with each other and are disconnected from the first gate. The first source, the supplemental cell and the third source are electrically connected with each other.