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GaN (Gallium Nitride) Substrate / Wafer
GaN (Gallium Nitride) Substrate / Wafer
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GaN (Gallium Nitride) Substrates and Wafers
GaN (Gallium Nitride) is a wide-bandgap III–V semiconductor material widely used in power electronics, RF and microwave devices, LEDs, laser diodes, and advanced optoelectronic systems. With a wide bandgap of approximately 3.4 eV, GaN enables devices with high breakdown voltage, high switching speed, and excellent thermal stability.
Compared with silicon and GaAs, GaN offers much higher critical electric field, higher power density, and superior high-frequency performance. These advantages make GaN the material of choice for HEMTs, RF power amplifiers, fast chargers, EV power modules, and high-brightness optoelectronic devices.
Native GaN substrates provide excellent lattice matching for homoepitaxial GaN growth, resulting in significantly lower dislocation density compared with heteroepitaxial GaN grown on sapphire or silicon. This leads to improved device efficiency, reliability, and lifetime.
Our GaN wafers are supplied with strict control of crystal orientation, surface flatness, thickness uniformity, and defect density. Epi-ready polishing is available for MOCVD, MBE, and HVPE epitaxial growth, supporting both research and commercial manufacturing.
Key Features
- Wide bandgap semiconductor (Eg ≈ 3.4 eV)
- Very high breakdown electric field
- High electron mobility and saturation velocity
- Excellent thermal and chemical stability
- Low dislocation density (native GaN)
- Optimized for homoepitaxial growth
Typical Applications
- Power electronics and vertical GaN devices
- RF and microwave HEMTs
- High-efficiency power amplifiers
- Blue and UV laser diodes
- High-brightness LEDs
- Advanced optoelectronic and photonic devices
Typical Properties
- Material: Gallium Nitride (GaN)
- Crystal Structure: Wurtzite
- Bandgap: ~3.4 eV
- Orientation: (0001), (10-10), (11-20)
- Conductivity: Undoped, n-type
- Surface: Epi-ready, single-side or double-side polished
Frequently Asked Questions — GaN Substrate / Wafer
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