Ceramic Substrates (Alumina & Aluminium Nitride)
High-performance ceramic materials used as substrates for electronic components, power modules, and sensors in automotive powertrain and control systems.
Overview
Alumina (Al₂O₃) and aluminium nitride (AlN) are advanced technical ceramics used as substrates in automotive electronics and power systems. Alumina is widely used for its excellent electrical insulation, hardness, and cost-effectiveness in PCB substrates, spark plug insulators, and sensor housings. Aluminium nitride offers a significantly higher thermal conductivity (up to 170 W/m·K) while remaining electrically insulating — critical for power electronics substrate applications where efficient heat extraction from SiC or IGBT power modules is essential. In EV and hybrid applications, AlN substrates are key to the thermal management of inverters, DC/DC converters, and on-board chargers.
Automotive Applications
Similar Materials
Gallium Nitride (GaN)
Wide Bandgap Semiconductor
A wide bandgap semiconductor enabling ultra-compact, high-frequency power conversion in EV charging and power electronics applications.
Silicon Carbide (SiC)
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A wide bandgap semiconductor material enabling high-efficiency, high-voltage, and high-temperature power electronics for EV inverters and charging systems.
Copper
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Highly conductive metal essential for electrical systems
Polyimides
High-Performance Polymer
A class of ultra-high-temperature resistant polymers offering outstanding thermal stability, mechanical properties, and chemical resistance for extreme automotive environments.
Properties
Category
Type
Technical Ceramic
Available Colors
Available Forms
Key Properties
- High electrical insulation
- High thermal conductivity (AlN)
- Excellent hardness
- Thermal stability
- Chemical resistance
- High dimensional precision
Technical Specifications
Density
3.69 g/cm³ (Al₂O₃); 3.26 g/cm³ (AlN)
Temperature Resistance
Up to 1,600°C (Al₂O₃); 1,200°C (AlN in air)
Sustainability
Sustainability Rating
Ceramic substrates enable efficient power electronics, directly contributing to EV drivetrain efficiency and energy savings.