Invention Grant
- Patent Title: SiC semiconductor device with offset in trench bottom
-
Application No.: US15959661Application Date: 2018-04-23
-
Publication No.: US10553685B2Publication Date: 2020-02-04
- Inventor: Ralf Siemieniec , Thomas Aichinger , Romain Esteve , Daniel Kueck
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Murphy, Bilak & Homiller, PLLC
- Priority: DE102017108738 20170424
- Main IPC: H01L29/16
- IPC: H01L29/16 ; H01L29/66 ; H01L29/78

Abstract:
A semiconductor device includes a trench extending from a first surface into a SiC semiconductor body. The trench has a first sidewall, a second sidewall opposite to the first sidewall, and a trench bottom. A gate electrode is arranged in the trench and is electrically insulated from the SiC semiconductor body by a trench dielectric. A body region of a first conductivity type adjoins the first sidewall. A shielding structure of the first conductivity type adjoins at least a portion of the second sidewall and the trench bottom. A first section of the trench bottom and a second section of the trench bottom are offset to one another by a vertical offset along a vertical direction extending from the first surface to a second surface of the SiC semiconductor body opposite to the first surface.
Public/Granted literature
- US20180308938A1 SiC Semiconductor Device with Offset in Trench Bottom Public/Granted day:2018-10-25
Information query
IPC分类: