Our aluminum nitride (AlN) ceramic substrates offer outstanding thermal conductivity up to 170 W/m·K—the highest among all our ceramic materials. With a thermal expansion coefficient similar to silicon, AlN substrates ensure excellent compatibility with semiconductor devices, minimizing stress during temperature fluctuations.
These substrates also provide superior electrical insulation, low dielectric constant and loss, and excellent mechanical strength, making them ideal for use in high-power and high-frequency electronic applications.

Key Features:
- High mechanical strength
- Excellent electrical insulation
- Low dielectric constant and low dielectric loss
- Thermal expansion closely matched to silicon
- Exceptional thermal conductivity (up to 170 W/m·K)
- Superior corrosion resistance
- Non-toxic and environmentally friendly
Standard Dimensions:
Square:
- 50.8×50.8mm / 76.2×76.2mm / 101.6×101.6mm / 114.3×114.3mm
- Thickness: 0.385 / 0.5 / 0.635 / 0.75 / 1.0mm
Round:
- Thickness: 1.5mm or 2.0mm
- Diameters: 19 / 20 / 26 / 30 / 35 / 40 / 45 / 50 / 52 / 60mm
Typical Applications:
- Optical communication devices
- Specialized refrigeration units
- LED lighting and packaging
- Automotive electronic modules
- High-efficiency power modules
- High-frequency and microwave circuits
- Power electronic components
As a trusted China-based ceramic manufacturer, we provide high-quality ceramic solutions tailored for critical industries including communications, automotive, and power electronics. Contact us for customized sizes and specifications.
Explore more:96 Alumina Ceramic Substrate/Si3N4 Ceramic Products/Aluminum Nitride Ceramics/Metalization Ceramics
