Aluminum Nitride Heaters
Edgetech Industries, Advanced Ceramics Division supplies high-quality Aluminum Nitride Ceramic Heaters at competitive price.
Custom Aluminum Nitride Heaters for Fast and Controlled Heating
ETI Ceramics supplies custom aluminum nitride heaters for applications requiring rapid thermal response, electrical insulation, compact dimensions, and controlled surface heating.
Customized AlN Ceramic Heaters
An Aluminum nitride ceramic heater is an integrated electrothermal component rather than a simple ceramic plate. Its performance depends on the resistance pattern, voltage, power, heater dimensions, thermal load, temperature sensor, lead configuration, mounting method, operating atmosphere, and control system.
Edgetech Industries evaluates custom heater requirements according to the complete application. Customers should provide the target temperature, heating time, heated mass, available power supply, operating environment, dimensional restrictions, and required temperature uniformity before quotation.
Aluminum Nitride Ceramic Parameter
| Item | Unit | Value |
| Color | – | Grayish white, Beige |
| Water absorption | % | 0 |
| Volume Density | g/cm3 | ≥3.30 |
| Surface roughness | um | 0.2-0.85 |
| Warpage | (length ‰) | ≤2.5‰ |
| Thermal conductivity | W/m.k | ≥170 |
| Thermal expansivity | x 10-6/°C (20℃-800℃) | 4-6 |
| Flexural strength | MPa | ≥350 |
| Modulus of elasticity | GPa | 310-320 |
| Dielectric constant | 1MHZ, 25℃ | 8.9 |
| Dielectric loss | x 10-4 | 4.6 |
| Dielectric strength | KV/mm | ≥15 |
| Volume resistivity | Ω.cm | ≥1014 |
Why Choose Aluminum Nitride Heater?
AlN ceramic heaters combine ultra-high thermal conductivity (≥225 W/m·K) with outstanding electrical insulation, making them ideal for:
Aluminum nitride heating element
✔ Rapid heating up to 500°C with fast ramp rates (~150°C/min)
✔ Contaminant-free operation in sensitive environments
✔ Superior thermal management for high-power electronics
✔ Excellent chemical resistance against molten metals and corrosive substances
✔ Precision thermal control with low thermal expansion
Unlike conventional metal heaters, our AlN ceramic heaters provide:
Better mechanical strength than alumina
Optimal thermal matching with semiconductor silicon wafers
Minimal electronic signal interference (low dielectric constant)
Non-toxic, high-purity composition
Key Features of Our AlN Ceramic Heaters
| Property | Advantage |
|---|---|
| Thermal Conductivity ≥225 W/m·K | Faster heat transfer than most ceramics |
| Excellent Electrical Insulation | Safe for high-voltage applications |
| Low Thermal Expansion | Maintains dimensional stability |
| Good Metallization Capacity | Enables reliable electrical connections |
| High Chemical Resistance | Withstands harsh environments |
Sensors, Leads, and Connections
Temperature sensing should be defined early in the heater design.
Available configurations may include:
- Thermocouple integration
- RTD integration
- External temperature sensing
- Single-zone temperature control
- Multi-zone temperature control
- Custom lead length
- Custom lead exit direction
- Application-specific connector options
- Vacuum-compatible lead configurations
Only list the options that ETI Ceramics can actually supply.
The sensor location should represent the temperature that the control system needs to regulate. A sensor close to the resistance element may respond quickly, while a sensor closer to the heated component may better represent the process temperature.
| Aluminum Nitride Heater Typical Product Information | |
| Property | Available Range or Requirement |
| Material | Aluminum Nitride Ceramic |
| Size | 10mm x 10mm, 35mm x 35mm, 50mm x 50mm, Customizable Per requiest |
| Working temperature | Room temperature-450C |
| Load bearing | ≤1000N |
| Operating voltage | ≤220V |
| Resistance | Customizable |
| Parallelism | 0.01mm |
| Flatness | 0.005mm |
| Surface roughness | Ra1.6um |
| Temperature control | Type K thermocouple |
| Surface roughness | Ra1.6um |
| Inspection reports | Inspection reports, including temperature uniformity images |
Industrial Applications
Our aluminum nitride heaters are critical components in:
AlN ceramic heater with lead wires
Semiconductor & Electronics
Wafer processing chambers
High-power modules (IGBT, MOSFET)
Optoelectronic communication devices
Advanced Manufacturing
LED production systems
Automotive electronics
High-frequency microwave devices
Specialized Heating Solutions
Precision laboratory equipment
Aerospace components
Medical device manufacturing
Custom Electrical Design
Design each heater around the customer’s electrical and thermal system.
Important electrical parameters include:
- AC or DC operation
- Nominal voltage
- Available current
- Target power
- Target resistance
- Resistance tolerance
- Operating temperature
- Controller type
- Temperature-sensor input
- Lead and connector requirements
Heating Rate and Thermal Load
Aluminum Nitride Heaters
Heating rate must be stated together with the test conditions.
A heater tested in room-temperature air without a thermal load may heat much faster than the same heater after it is mounted to a metal plate, process chamber, semiconductor component, or analytical instrument.
Any published heating curve should identify:
- Heater dimensions
- Heater thickness
- Applied voltage
- Applied power
- Test atmosphere
- Starting temperature
- Target temperature
- Heated mass
- Mounting condition
- Sensor type
- Sensor position
- Controller setting
Quality Assurance & Packaging
Understanding the fragile nature of advanced ceramics, we ensure:
✅ Secure vacuum packaging for critical components
✅ Shock-absorbent cushioning materials
✅ Reinforced shipping containers
✅ Careful handling protocols throughout logistics
Experience the Edgetech Advantage
Choose an industry-leading AlN ceramic heater that delivers:
Aluminum Nitride Ceramic Heater
Consistent thermal performance
Long-term reliability
Precision engineering
Competitive pricing
Contact our Advanced Ceramics Division today to discuss your aluminum nitride heater requirements.
FAQ Content
What is an aluminum nitride heater?
An aluminum nitride heater is a ceramic heating component in which a resistive heating circuit is integrated with an electrically insulating AlN ceramic structure. The complete heater may also include leads, terminals, sensors, and mounting features.
How fast can an AlN heater reach the target temperature?
Heating time depends on heater dimensions, voltage, power, resistance, thermal load, mounting, insulation, atmosphere, and controller settings. A heating-rate claim is only meaningful when the test conditions are provided.
Can an aluminum nitride heater operate in a vacuum?
Some AlN heater designs can be used in vacuum systems, but the ceramic, conductor system, leads, sensor, connector, and outgassing requirements must all be reviewed for the intended vacuum level and temperature.
Can ETI Ceramics customize voltage and power?
Voltage, power, and resistance can be evaluated according to the available power supply, heater dimensions, target temperature, heating time, and thermal load. The final design must remain within the electrical and thermal limits of the heater construction.
What information is needed to design a custom heater?
The most important information includes heater dimensions, target temperature, heating time, heated mass, operating atmosphere, voltage, power limitations, temperature uniformity, sensor type, lead configuration, and mounting method.
Is the thermal conductivity of AlN enough to predict heater performance?
No. Thermal conductivity is one property of the ceramic material. Finished-heater performance also depends on resistance layout, power density, heater thickness, thermal load, mounting, heat loss, sensor location, and control strategy.
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