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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 drift layer (2) of a first conductivity type, - a well region (3) of a second conductivity type being different from the first conductivity type, and - a first doped region (4) of the first conductivity type and a second doped region (5) of the second conductivity type, wherein - the well region (3), the first doped region (4) and the second doped region (5) are provided at a first side of the power semiconductor device (1), - the first doped region (4) and the second doped region (5) are spaced apart (6) from the drift layer (2) by the well region (3), and - the second doped region (5) is completely surrounded by the first doped region (4) in lateral directions, and - the second doped region (5) comprises at least two parts (6), which are spaced apart (6) from one another in lateral directions by the first doped region (4). Furthermore, a method for producing a power semiconductor device (1) is specified.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
29 July 2025
Publication Number
33/2025
Publication Type
INA
Invention Field
ELECTRONICS
Status
Email
Parent Application

Applicants

HITACHI ENERGY LTD
Brown-Boveri-Strasse 5 8050 Zürich

Inventors

1. DONATO, Nazareno
113 Overstrand Way Norwich, Sprowston Norfolk NR7 8FZ
2. MIHAILA, Andrei
Flühstrasse 19 5415 Rieden
3. ROMANO, Gianpaolo
Wiesenstrasse 7 5400 Baden
4. KNOLL, Lars
Höhenweg 1 5607 Hägglingen
5. UDREA, Florin
23 Babraham rd Cambridge Cambridgeshire CB2 0RB

Specification

Documents

Application Documents

# Name Date
1 202547072018-STATEMENT OF UNDERTAKING (FORM 3) [29-07-2025(online)].pdf 2025-07-29
2 202547072018-REQUEST FOR EXAMINATION (FORM-18) [29-07-2025(online)].pdf 2025-07-29
3 202547072018-PROOF OF RIGHT [29-07-2025(online)].pdf 2025-07-29
4 202547072018-Proof of Right [29-07-2025(online)]-1.pdf 2025-07-29
5 202547072018-PRIORITY DOCUMENTS [29-07-2025(online)].pdf 2025-07-29
6 202547072018-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [29-07-2025(online)].pdf 2025-07-29
7 202547072018-FORM 18 [29-07-2025(online)].pdf 2025-07-29
8 202547072018-FORM 1 [29-07-2025(online)].pdf 2025-07-29
9 202547072018-DRAWINGS [29-07-2025(online)].pdf 2025-07-29
10 202547072018-DECLARATION OF INVENTORSHIP (FORM 5) [29-07-2025(online)].pdf 2025-07-29
11 202547072018-COMPLETE SPECIFICATION [29-07-2025(online)].pdf 2025-07-29
12 202547072018-FORM-26 [30-07-2025(online)].pdf 2025-07-30