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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 - the first semiconductor layer (3) is structured by several doped regions (7) of the second conductivity type i n a termination region (8) surrounding an active region (9) 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 semicon ductor device (1) is specified.

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Patent Information

Application #
Filing Date
26 September 2025
Publication Number
43/2025
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 202547092485-STATEMENT OF UNDERTAKING (FORM 3) [26-09-2025(online)].pdf 2025-09-26
2 202547092485-REQUEST FOR EXAMINATION (FORM-18) [26-09-2025(online)].pdf 2025-09-26
3 202547092485-PROOF OF RIGHT [26-09-2025(online)].pdf 2025-09-26
4 202547092485-PRIORITY DOCUMENTS [26-09-2025(online)].pdf 2025-09-26
5 202547092485-FORM 18 [26-09-2025(online)].pdf 2025-09-26
6 202547092485-FORM 1 [26-09-2025(online)].pdf 2025-09-26
7 202547092485-DRAWINGS [26-09-2025(online)].pdf 2025-09-26
8 202547092485-DECLARATION OF INVENTORSHIP (FORM 5) [26-09-2025(online)].pdf 2025-09-26
9 202547092485-COMPLETE SPECIFICATION [26-09-2025(online)].pdf 2025-09-26
10 202547092485-FORM-26 [29-09-2025(online)].pdf 2025-09-29
11 202547092485-Proof of Right [03-10-2025(online)].pdf 2025-10-03