GaN HEMT

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世界GaN日|GaN可能从哪些细分应用市场挑战SiC
半导体芯闻· 2025-08-06 11:22
Core Viewpoint - The article emphasizes the significance of Gallium Nitride (GaN) as a strategic material in modern technology, highlighting its potential applications and advantages over Silicon Carbide (SiC) in various sectors [1][10][25]. Group 1: Material Comparison - GaN and SiC are classified as compound semiconductors, composed of multiple elements, and their properties significantly impact the performance of electronic devices [2]. - SiC MOSFETs excel in high power applications, while GaN HEMTs are superior in high-frequency applications [3][4]. - The substrate for GaN can be silicon or sapphire, while SiC and silicon devices use their respective materials as substrates [6][7]. Group 2: Application Markets - In the automotive sector, GaN is still in the exploratory phase for high-power applications, with SiC currently dominating due to its superior short-circuit protection capabilities [10][11]. - GaN power devices have gained traction in consumer electronics, particularly in fast charging solutions, with significant market penetration since 2019 [12]. - The AI server power market demands high power density, where GaN's high-frequency switching and low-loss characteristics are advantageous [18]. - In humanoid robotics, GaN FETs enable faster switching speeds, enhancing the performance of joint motors [21][23]. - GaN shows promise in integrated solar-storage-charging systems, improving inverter size and dynamic performance [24]. Group 3: Technical Challenges - GaN faces challenges related to lattice and thermal mismatch when grown on silicon substrates, impacting the quality and reliability of devices [25]. - The cost structure of GaN devices is influenced by substrate costs, wafer manufacturing, depreciation, yield, and packaging [25]. Group 4: Industry Events - The IPF 2025 conference serves as a significant platform for discussions on GaN and SiC technologies, featuring prominent industry leaders and experts [34][35].