Valeo and Rohm Semiconductor are working together on the next generation of power modules for electric motor inverters. In this context, Rohm will now provide the French drive specialist with an innovative silicon carbide module as a first step.
Valeo and Rohm have been cooperating since 2022, initially focussing on exchanging technical experience regarding inverters. Both companies aim to achieve higher energy efficiency and lower heat generation by optimising power electronics, their integration, and cooling. The partnership has now reached a new level with a supply agreement between the two parties: Rohm will provide Valeo with SiC modules of the ‘TRCDRIVE pack’ type. On this basis, Valeo aims to start delivering a first series project at the beginning of 2026.
According to Rohm, the SiC module will help with “solving the key challenges of traction inverters in terms of miniaturisation, higher efficiency, and fewer person-hours.” SiC stands for silicon carbide, which has a higher thermal conductivity, breakdown voltage and switching speed in chips than silicon. SiC modules thus switch faster, have lower heat losses and are simply more efficient – which in an electric car means more range with the same battery size. However, silicon carbide is also significantly more expensive than silicon – which is why SiC power modules have so far tended to be used in premium electric cars. Cheaper volume models, on the other hand, usually use conventional silicon semiconductors.
“This partnership marks, for Valeo Power Division, a significant step forward in delivering advanced and high-efficient power electronics,” says Valeo Power Division CEO Xavier Dupont. “Together, we aim to set new industry standards for high voltage inverters and accelerate the transition towards more efficient and affordable electric mobility.”
“We are pleased to support Valeo, a renowned automotive supplier, with our power semiconductors. ROHM’s TRCDRIVE pack™ provides high power density, leading to an improved power efficiency. Together, we contribute to the development of highly efficient powertrains by fostering the collaboration with Valeo,” says Wolfram Harnack, President of Rohm Semiconductor GmbH.