Introduction
From powering electric cars to cooling AI data centers, a tiny material called GaN is quietly rewriting the future of energy. Now, Korea has made its bold entry into this high-stakes semiconductor race. Startup ChipsK has become the first in the nation to mass-produce 650V gallium nitride (GaN) power semiconductors, signaling a new chapter in global power electronics.
Quick Take: 5 Key Highlights
Korea’s First 650V GaN Device – ChipsK has achieved a national milestone in power semiconductor technology.
Backed by Gyeonggi Province– Supported through the 2023 Testbed Utilization Semiconductor Technology Development Project.
High-Temperature Stability – Operates stably at up to 150°C.
Global Expansion – International trademark registration via WIPO secures its technology worldwide.
Wide Applications – From EVs and AI data centers to industrial power supplies and energy storage systems (ESS).
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What Are GaN Power Semiconductors?
Power semiconductors control the flow of electricity in devices ranging from smartphones to electric vehicles. While silicon (Si) has been the traditional material, it is reaching physical and efficiency limits.
Gallium nitride (GaN), a wide bandgap material, offers critical advantages:
- Higher power efficiency – reduces energy loss and heat.
- Faster switching speeds – essential for AI data centers and EV inverters.
- Thermal stability – can operate at extreme temperatures without breakdown.
- Miniaturization – allows compact and lightweight designs.
In real-world terms, GaN enables faster EV charging, more efficient AI servers, and reliable renewable energy storage — a leap beyond what silicon can achieve.
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ChipsK’s Breakthrough in 650V GaN Technology
ChipsK’s achievement is historic for Korea. It began mass production of 650V GaN power semiconductors in June 2025, the first company in the country to do so.
Key technical strengths include:
- High-Temperature Operation: Stable at 150°C.
- Single-Chip Design: Reduces size while maintaining performance.
- Global IP Protection: Trademark registered with WIPO, signaling international ambitions.
This positions ChipsK not just as a local innovator, but a potential global contender in GaN power electronics.
Role of Gyeonggi Province in Semiconductor R&D
ChipsK benefited from the Gyeonggi Province Testbed Utilization Semiconductor Technology Development Project, which provided funding, research support, and access to local semiconductor infrastructure.
Park Min-kyung, head of the semiconductor industry division in Gyeonggi Province, stated:
“Gyeonggi Province will continue to do its best to support startups like ChipsK to generate specific results in this field.”
This support highlights Korea’s strategy to boost domestic innovation in compound semiconductors and reduce dependence on foreign suppliers.
Global Market Impact and Applications
ChipsK’s 650V GaN devices target high-demand sectors:
Electric Vehicles (EVs) and Fast Charging: GaN chips enable lighter, faster, and more energy-efficient EV inverters, helping vehicles charge faster and consume less energy.
AI Data Centers and Cloud Infrastructure: Power-hungry AI workloads benefit from higher efficiency and reduced cooling needs, lowering operational costs for hyperscale data centers.
Industrial Power Supplies and Robotics: GaN-based devices allow compact, reliable, and energy-efficient industrial power systems for automation and smart factories.
Energy Storage Systems (ESS) and Renewables: GaN improves energy conversion efficiency, enhancing battery storage reliability and reducing waste in renewable energy systems.
Korea’s Semiconductor Strategy Beyond Memory
Korea has long dominated memory chips (DRAM, NAND) but lagged in power semiconductors.
ChipsK’s breakthrough represents a shift toward compound semiconductors, like GaN and SiC, which are becoming strategically important as global industries demand higher efficiency and performance.
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Competing in the Global GaN Market
The GaN power semiconductor market is expected to grow 30% CAGR through 2030, driven by EVs, AI data centers, and renewable energy.
Key global competitors include Infineon (Germany), Navitas (U.S.), and GaN Systems (Canada).
ChipsK’s first-mover advantage in Korea, coupled with nimble design capabilities and government backing, positions it well against these giants.
Its 650V-class chip also hits a critical voltage segment for high-power applications, giving it strong commercial appeal.
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Conclusion – A Startup with Global Potential
ChipsK may be a startup today, but its 650V GaN chip is a giant leap for Korea’s tech future. As electric vehicles, AI servers, and renewable energy systems demand faster, smarter power solutions, ChipsK is poised to challenge global giants. Will Korea’s GaN innovation disrupt the world stage? The race has just begun.
Korea’s entry into GaN power semiconductors demonstrates that domestic startups can compete on a global scale. With the right blend of innovation, government support, and strategic market positioning, ChipsK is set to become a symbol of Korea’s semiconductor diversification and future-ready technology leadership.
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