Invention Grant
- Patent Title: Super junction semiconductor device and method of manufacturing the same
-
Application No.: US17389887Application Date: 2021-07-30
-
Publication No.: US12002849B2Publication Date: 2024-06-04
- Inventor: Jong Min Kim
- Applicant: DB HITEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: DB HITEK CO., LTD.
- Current Assignee: DB HITEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Husch Blackwell LLP
- Priority: KR 20200096044 2020.07.31
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L29/40 ; H01L29/423 ; H01L29/66 ; H01L29/78

Abstract:
A super junction semiconductor device includes a substrate of a first conductive type, the substrate including an active region, a peripheral region surrounding the active region and a transition region interposed between the active region and the peripheral region, an epitaxial layer disposed on the substrate, the epitaxial layer having a the first conductive type, a plurality of pillars extending in a vertical direction and arranged within the epitaxial layer, gate structures disposed on the epitaxial layer in both the active region and the transition region, and the each of the gate structures extending across the epitaxial layer and the pillars in a horizontal direction, and a reverse recovery layer of a second conductive type, the reverse recovery layer having a vertical formation heights different as between on the pillars and on the epitaxial layer, the reverse recovery layer configured to dissipate a reverse recovery current in the transition layer.
Public/Granted literature
- US20220037463A1 SUPER JUNCTION SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2022-02-03
Information query
IPC分类: