公开(公告)号：US10749002B2

公开(公告)日：2020-08-18

申请号：US16680846

申请日：2019-11-12

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Martin Domeij

IPC: H01L29/16 ,  H01L29/66 ,  H01L29/78 ,  H01L29/08 ,  H01L21/308 ,  H01L29/10 ,  H01L27/092

Abstract: A semiconductor device includes a source region configured to provide at least a portion of a MOSFET source of a MOSFET and at least a portion of a JFET source of a JFET. The semiconductor device includes a JFET channel region in series with the source region and a MOSFET channel region of the MOSFET, and disposed between a first JFET gate and a second JFET gate. The semiconductor device includes a JFET drain disposed at least partially between a gate insulator of a gate of the MOSFET and at least a portion of the JFET channel region, and in electrical contact with the first JFET gate and the second JFET gate. Various example implementations of this type of semiconductor device provide a SiC power MOSFET with improved short-circuit capability and durability, with minimal impact on RDS-ON.

公开(公告)号：US11817478B2

公开(公告)日：2023-11-14

申请号：US17247796

申请日：2020-12-23

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Jaume Roig-Guitart ,  Fredrik Allerstam ,  Thomas Neyer ,  Andrei Konstantinov ,  Martin Domeij ,  Jangkwon Lim

IPC: H01L29/06 ,  H01L29/16

CPC classification number: H01L29/0623 ,  H01L29/1608

Abstract: In a general aspect, a semiconductor device can include a substrate of a first conductivity type, an active region disposed in the substrate, and a termination region disposed in the substrate adjacent to the active region. The termination region can include a junction termination extension (JTE) of a second conductivity type, where the second conductivity type is opposite the first conductivity type. The JTE can have a first depletion stopper region disposed in an upper portion of the JTE, a second depletion stopper region disposed in a lower portion of the JTE, and a high carrier mobility region disposed between the first depletion stopper region and the second depletion stopper region.