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Power Semiconductor Device And Method For Producing A Power Semiconductor Device

Abstract: A power semiconductor device (1) is specified, comprising - a first electrode (2), - a first semiconductor layer (3) of a first conductivity type, - a drift layer (4) of the first conductivity type, - a second semiconductor layer (5) of a second conductivity type different from the first conductivity type, and - a second electrode (6), wherein - at least one of the first semiconductor layer (3) and the second semiconductor layer (5) comprises an oxide layer (24) extending in an active region (9) of the power semiconductor device (1) being surrounded by a termination region (8) of the power semiconductor device (1), and - at least one of the first semiconductor layer (3) and the second semiconductor layer (5) has a bevel structure (19). Furthermore, a method for producing a power semiconductor device (1) is specified.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
16 July 2025
Publication Number
30/2025
Publication Type
INA
Invention Field
ELECTRONICS
Status
Email
Parent Application

Applicants

HITACHI ENERGY LTD
Brown-Boveri-Strasse 5 8050 Zürich

Inventors

1. VEMULAPATI, Umamaheswara
Weiermattstrasse 6 5210 Windisch
2. VOBECKY, Jan
K lanu 6/498 16000 Praha 6
3. WIKSTROEM, Tobias
Eichholzstrasse 16 5704 Egliswil
4. STIASNY, Thomas
Eintrachtstrasse 19 8820 Waedenswil

Specification

Documents

Application Documents

# Name Date
1 202547067745-STATEMENT OF UNDERTAKING (FORM 3) [16-07-2025(online)].pdf 2025-07-16
2 202547067745-REQUEST FOR EXAMINATION (FORM-18) [16-07-2025(online)].pdf 2025-07-16
3 202547067745-PROOF OF RIGHT [16-07-2025(online)].pdf 2025-07-16
4 202547067745-PRIORITY DOCUMENTS [16-07-2025(online)].pdf 2025-07-16
5 202547067745-FORM 18 [16-07-2025(online)].pdf 2025-07-16
6 202547067745-FORM 1 [16-07-2025(online)].pdf 2025-07-16
7 202547067745-DRAWINGS [16-07-2025(online)].pdf 2025-07-16
8 202547067745-DECLARATION OF INVENTORSHIP (FORM 5) [16-07-2025(online)].pdf 2025-07-16
9 202547067745-COMPLETE SPECIFICATION [16-07-2025(online)].pdf 2025-07-16
10 202547067745-Proof of Right [18-07-2025(online)].pdf 2025-07-18
11 202547067745-FORM-26 [18-07-2025(online)].pdf 2025-07-18