News: Microelectronics
2 September 2026
Infineon and Skeleton collaborate on solid-state transformers and sidecars to enhance AI data-center resilience
Infineon Technologies AG of Munich, Germany and Skeleton Technologies, which provides high-power energy storage systems for AI data centers, have signed a memorandum of understanding (MoU) to collaborate on high-efficiency, resilient power solutions for modern data centers.
The rapid growth of AI, increasing power demand and the need for highly reliable digital infrastructure are driving a new generation of power architecture. Solid-state transformers (SSTs) and high-power sidecars are increasingly important building blocks for AI data-center infrastructure. They enable more efficient power conversion from grid to core and higher system resilience. Accordingly, the two companies aim to advance these technologies to improve energy efficiency and system performance throughout the power delivery chain.
“AI is fundamentally transforming power infrastructure requirements. The increasing power density of modern data centers calls for new approaches to energy conversion, distribution and storage,” says Andreas Weisl, executive VP & chief sales officer of Industrial and Infrastructure at Infineon. “By combining Infineon’s expertise in power semiconductors with Skeleton’s innovation in supercapacitor technology and power conversion systems, we are driving the development of highly efficient and resilient power architectures that meet the demands of next-generation AI workloads,” he adds.
“Power density is becoming one of the defining constraints of AI infrastructure globally,” notes Skeleton’s CEO Taavi Madiberk. “AI data centers need to deliver dramatically more power to increasingly dense GPU infrastructure, without allowing the power system itself to consume more space. Infineon and Skeleton Technologies are both working at the forefront of that challenge,” he adds. “By combining Infineon’s precision in converting and controlling power with Skeleton’s expertise in storing and delivering very high power at speed, we can increase power density across the AI power infrastructure and enable more compute within the same physical footprint.”
Infineon and Skeleton will jointly explore and develop advanced architectures for the entire AI data-center power chain that delivers electricity from grid to core. This includes next-generation SSTs for medium-voltage AC to high-voltage DC conversion. The firms intend to combine Infineon’s high-efficiency high-voltage CoolSiC power semiconductors with Skeleton’s expertise in power conversion systems and supercapacitor technology. The companies are also collaborating on gallium nitride (GaN)-based peak-shaving systems that combine Skeleton’s advanced supercapacitor technology with Infineon’s CoolGaN power semiconductors. By bringing together complementary technologies and system-level know-how, the collaboration aims to deliver breakthrough improvements in energy efficiency, power density and system reliability while helping to reduce the total cost of ownership for data-center operators.
