Mazda and Rohm Innovate with GaN Power Technology for Automobiles

2025-03-31 automotive

Tokyo, Monday, 31 March 2025.
Mazda and Rohm’s collaboration leverages gallium nitride (GaN) semiconductors to enhance electric vehicle efficiency and component miniaturization, with a demonstration model expected by fiscal year 2025.

Strategic Partnership Evolution

Building on their existing collaboration in silicon carbide (SiC) power semiconductors since 2022 [1][2], Mazda and ROHM are now expanding their partnership into gallium nitride (GaN) technology. This strategic expansion aims to revolutionize automotive component development, particularly focusing on electric vehicle applications [3]. The collaboration marks a significant shift in automotive industry dynamics, with manufacturers increasingly seeking direct partnerships with semiconductor companies rather than relying on traditional tier-based supply chains [4].

Technical Advantages of GaN Technology

GaN technology offers substantial advantages over conventional silicon semiconductors, particularly in power conversion efficiency and component miniaturization [5]. The technology enables high-frequency operation, which contributes to reduced power conversion losses and allows for the development of smaller magnetic components [6]. ROHM’s EcoGaN technology, combined with specialized control ICs, plays a crucial role in achieving these improvements in miniaturization and energy efficiency [7].

Implementation Timeline and Market Impact

The partnership has established clear development milestones, with plans to unveil a demonstration model within fiscal year 2025, followed by practical implementation targeted for fiscal year 2027 [1][8]. This timeline aligns with the broader industry push toward electrification and the pursuit of carbon neutrality [9]. The collaboration represents a significant step forward in creating a direct value chain between semiconductor devices and automotive applications, potentially reshaping traditional automotive supply chain structures [4].

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automotive electronics GaN technology