Insight: Vertical GaN – onsemi’s Leap Toward High-Efficiency EV Power Systems

Discover how onsemi’s new vertical GaN technology redefines power efficiency - delivering higher voltage, faster switching, and lower energy loss for EVs and AI data centers.

onsemi has introduced a new class of power semiconductors based on vertical GaN (vGaN) technology — a GaN-on-GaN design that conducts current vertically for higher voltages, faster switching, and improved thermal stability. The company states it achieves up to 50% lower energy losses and much smaller device footprints, targeting challenging applications from electric vehicles to AI data centers. This launch sets a new standard for efficiency and power density in next-generation systems. But how does vGaN compare with current silicon carbide and lateral GaN technologies — and what could it mean for future electrification architectures? Explore the full analysis for insights into the performance improvements, potential challenges, and strategic implications shaping this breakthrough.