Melexis and Leapers Semiconductor Collaborate to Advance SiC Power Modules with Integrated RC Snubber Technology
Melexis is pleased to announce that Leapers Semiconductor, a global leader in advanced power semiconductor module manufacturing, has integrated the Melexis MLX91299 silicon-based RC snubber into its next-generation power modules. This collaboration highlights how close cooperation between module manufacturers and semiconductor specialists can translate innovation into practical, system-level benefits for automotive and energy management applications.
Leapers’ power modules are widely used in demanding environments such as electric vehicles, charging infrastructure, renewable energy systems, and industrial power conversion. As market requirements for higher efficiency, increased power density, and improved reliability continue to rise, these modules are increasingly based on silicon carbide (SiC) power devices operating at higher switching frequencies and voltages. Fully leveraging the advantages of SiC, however, requires precise control of voltage overshoot, ringing, and electromagnetic interference (EMI) at the module level. If left unmanaged, these effects can limit overall module performance.
To address these challenges, Leapers selected the Melexis MLX91299 silicon-based RC snubber for direct integration inside the power module. Unlike conventional external, discrete RC snubber solutions, the MLX91299 integrates both resistance and capacitance into a single silicon die. Positioned close to the switching devices, it effectively suppresses voltage spikes and high-frequency oscillations, maintains an efficient thermal path, and supports high-temperature operation. This enables Leapers to maximize the performance and efficiency of SiC devices while preserving a compact module layout and enhancing overall system stability.
In addition, the bare-die RC snubber is fully compatible with Leapers’ existing assembly and testing processes, ensuring predictable electrical performance and seamless integration into volume production.
From Leapers Semiconductor
“Melexis’ snubber solution plays a key role in enhancing the performance of next-generation power semiconductor devices,” said Ding Xuanming, CEO of Leapers Semiconductor. “It significantly improves both performance and reliability while addressing multiple challenges associated with power module applications. Through our close collaboration, and by combining precise market positioning with optimized engineering design, we were able to rapidly introduce a SiC power module with an integrated RC snubber. This solution improves energy conversion efficiency and quality, delivering tangible benefits to end customers in the era of electrification.”
From Melexis
“Our MLX91299 bare-die RC snubber represents a major step forward in module-level integration for SiC-based power solutions,” said Billy Ye, Product Line Director at Melexis. “Leapers’ adoption of this technology in its advanced next-generation power modules clearly demonstrates how integrated snubber solutions can enhance both the performance and reliability of SiC devices. Fully compatible with standard assembly processes, the MLX91299 enables predictable performance and smooth production ramp-up, supporting the delivery of highly efficient and reliable power modules for automotive and industrial applications worldwide.”
Leapers’ pioneering implementation validates the feasibility of integrating Melexis’ silicon-based RC snubber into advanced power modules, demonstrating how the MLX91299 improves the performance and reliability of high-efficiency power technologies for automotive and industrial markets.