Power Semiconductors in Electric Mobility
Greener transportation requires a shift from fossil fuels to sustainable energy sources. Electricity can be generated with renewable energy and stored in batteries or as hydrogen. Cars, buses, trucks, and trains are powered either directly via catenaries or with on-board stored energy. IGBT semiconductors drive the electric motors of these vehicles with conversion efficiency beyond 95%.
As the electric vehicle market grows, the demand for high-performance, reliable power semiconductors has become critical. SwissSEM delivers automotive-grade IGBT and SiC MOSFET solutions designed for the demanding requirements of electric mobility.
Key Applications in Electric Vehicles
Electric Drive Systems for Commercial Vehicles
The i23 series 900A/1200V IGBT modules provide the current and thermal performance needed for commercial EV drives, including buses and trucks. The ultra-low VCE(sat) of 1.55V minimizes conduction losses for extended driving range.
SiC Modules for Passenger Vehicles
HEEV-type SiC modules combine Silicon Carbide technology with automotive-grade packaging for efficiency in passenger vehicle drives. The EVD-type three-phase SiC module offers integrated topology for compact EV inverter designs.
EV Charging Infrastructure
High-voltage SiC MOSFET chips (1200V to 2300V) enable efficient fast-charging stations with reduced switching losses. The m23 generation SiC chips support next-generation 800V and higher EV architectures.
Traction Power Supplies
Robust 1700V IGBT modules ensure reliable auxiliary power for rail and electric vehicle traction systems.
Hydrogen Fuel Cell Systems
High-current IGBT modules support the power conversion needs of hydrogen-based electric vehicle architectures.
Recommended Products for Electric Vehicles
| Product Model | Voltage | Current | Type | EV Application |
|---|---|---|---|---|
| SISD0900ED120i23 | 1200V | 900A | ED-Type Half-Bridge (i23) | Commercial EV drive systems |
| SCSD002HEEV120mS | 1200V | 600A | HEEV-Type SiC Phase-Leg | Passenger EV motor drives |
| SCSS0022EVD120m23 | 1200V | 600A | EVD-Type SiC Three-Phase | EV inverter modules |
| SCS0013C120m23 | 1200V | 13mΩ | SiC MOSFET Chip (m23) | On-board charger and DC-DC |
| SCS0030C230m23 | 2300V | 30mΩ | SiC MOSFET Chip (m23) | High-voltage EV charging stations |
IATF 16949 Automotive Quality Certification
Since June 2023, SwissSEM holds IATF 16949 certification. This milestone was achieved within four years of the company founding, reflecting organizational commitment to quality execution. IATF 16949 demonstrates commitment to automotive market supply, automotive-grade quality management, systematic defect prevention, and compliance with automotive supply chain requirements.
i23 Series Technical Highlights for EV
Low Conduction Losses
VCE(sat) of 1.55V at 900A (25°C) minimizes conduction losses for extended driving range.
Regenerative Braking Support
Optimized FRD with 0.25V lower VF enables efficient energy recovery during regenerative braking.
High Temperature Durability
175°C junction temperature rating ensures long-term durability under demanding automotive thermal cycles.
Harsh Environment Resistance
High resistance to moisture and salt spray environments, with proprietary chips developed in-house and custom packaging using copper wire bonding.
SiC Technology for Next-Generation EVs
SwissSEM Silicon Carbide products offer advantages for electric vehicles including lower switching losses at high frequencies, higher operating temperature capability, voltage support from 1200V to 2300V for next-generation architectures, and reduced system cost through smaller cooling requirements.
Manufacturing Capability
The manufacturing facility features over 30,000 square meters of floorspace, cleanroom facilities, fully automated assembly tools, and state-of-the-art equipment for automotive-grade production. The annual production capacity reaches 2 million IGBT modules.
