STMicroelectronics, a global leader in semiconductor technology, has announced a major milestone in its strategic collaboration with Ampere, Renault Group’s electric vehicle (EV) and software subsidiary. Starting in 2026, the two companies will engage in a multi-year agreement for the supply of advanced Silicon Carbide (SiC) power modules. These modules form the cornerstone of a powerbox designed for Ampere’s next-generation ultra-efficient electric powertrain.
Optimized for Performance and Competitiveness
The collaboration builds on extensive joint development efforts to optimize the power modules, which are critical components of the powerbox. This partnership combines Ampere’s expertise in EV technology with STMicroelectronics’ leadership in advanced power electronics. The result is a highly competitive solution that enhances the performance and efficiency of electric powertrains.
Philippe Brunet, Senior Vice President of Powertrain and EV Engineering at Ampere, highlighted the significance of this partnership:
This agreement reflects the intensive work done with STMicroelectronics. By collaborating early in the development process, we were able to secure and optimize key components for our electric powertrains. This enables us to deliver high-performance EVs with improved range and optimized charging times. It aligns perfectly with Ampere’s strategy to control the entire value chain of power electronics for our e-powertrains.
Supporting Sustainable Mobility Goals
STMicroelectronics’ vertically integrated SiC supply chain ensures a reliable and high-quality source of materials to meet Ampere’s stringent performance standards. Michael Anfang, Executive Vice President of Sales & Marketing for STMicroelectronics in the EMEA region, commented on the partnership:
ST is at the forefront of advanced power electronics, enabling the mobility industry to improve the performance of electrified platforms. Our optimized SiC products and solutions support Ampere’s strategy for next-generation electric powertrains. This collaboration underscores our shared vision for sustainable mobility and reinforces our commitment to reducing carbon emissions in the mobility sector.
Key Role of Silicon Carbide Power Modules
SiC power modules are integral to EV performance, converting electrical power from the battery to drive the motor. These modules enhance energy efficiency, battery range, and regenerative capabilities, while also contributing to smoother and more responsive driving experiences.
The powerbox developed by Ampere and STMicroelectronics incorporates three SiC power modules, an excitation module for motor control, and a cooling baseplate. This design simplifies thermal management and ensures optimal performance for both 400V and 800V battery systems. The inclusion of 800V technology is particularly noteworthy, as it enables rapid charging—achieving a 10%-80% charge in just 15 minutes, a key advancement for Segment C-EVs and larger vehicles.
Aligned Strategies for EV Innovation
This partnership aligns closely with Ampere’s strategy to master the full EV value chain by collaborating with upstream partners. By integrating STMicroelectronics’ SiC technology, Ampere aims to maximize efficiency at every step of EV production, ensuring high-performance solutions that meet evolving market demands.
STMicroelectronics, as an integrated device manufacturer (IDM), brings its deep system-level expertise to the table. Its capabilities in SiC packaging and advanced power electronics are crucial to supporting carmakers in their electrification strategies.
Technical Highlights
The powerbox’s innovative design includes:
- Three SiC-based power modules: Central to managing power conversion from the battery to the motor.
- Excitation module: Controls the magnetic field in the motor for precise operation.
- Cooling baseplate: Efficiently dissipates heat, simplifying thermal management.
Looking Ahead
This collaboration between STMicroelectronics and Ampere represents a significant step forward in advancing EV technology. By optimizing SiC power modules for Ampere’s electric powertrains, the partnership aims to deliver EVs with improved range, faster charging, and enhanced sustainability. As the mobility industry continues to prioritize electrification, this partnership underscores the importance of innovative solutions and strategic collaborations in achieving a greener future.
