Place of Origin:Guangdong, China
Material Introduction:
Made from high-purity aluminum nitride ceramic (AlN), with an internal tungsten (W) or molybdenum (Mo) resistance heating circuit.
Functional Features:
Fast thermal response, even surface heating, reliable electrical insulation, and stable performance during repeated heating and cooling cycles. The dimensions, voltage, resistance, rated power, heated area, heating zones, and terminal structure can be adjusted to suit the equipment requirements.
Application Industries:
Used in precision thermal control equipment, electronic component and power device testing, wafer processing, CVD and PVD systems, rapid thermal processing (RTP), vacuum heating platforms, optical and photonic processing equipment, laboratory instruments, high-temperature test stages, heated power module baseplates, medical sterilization equipment, and specialized heating modules. View more ceramic heating elements.
Global OEM Supply: Serving OEM customers in the USA, Germany, Japan, and Europe.
Lead Time: Standard-geometry heaters: 60–90 days. Multi-zone or high-precision heaters: 90–120 days.
This aluminum nitride ceramic heater uses a high-purity AlN body with an integrated tungsten or molybdenum resistance circuit. It is developed for precision heating equipment, wafer processing, vacuum systems, and electronic testing. The material spreads heat quickly across the working surface, helping the equipment reach temperature faster while reducing uneven heating and maintaining electrical insulation.
The heater body is made from high-purity aluminum nitride ceramic (AlN), with typical thermal conductivity of 170–230 W/(m·K). AlN remains electrically insulating and dimensionally stable as the temperature changes, with dependable mechanical and dielectric properties.
For thermal stages and rapid thermal processing (RTP) equipment where quick temperature changes and a stable heating surface are important.
Used for wafer heating and component processing in CVD, PVD, and other vacuum systems that require controlled, electrically isolated heating.
Provides a controlled heat source for reliability testing, burn-in systems, power modules, and electronic component evaluation.
A practical choice for sample heating, high-temperature test stages, and compact analytical equipment.
Used during optical component assembly, photonic device processing, and temperature-sensitive bonding or testing.
Can be incorporated into compact sterilization equipment, laboratory heating devices, and purpose-built heating modules.
Heat moves quickly from the internal resistance circuit to the working surface, shortening warm-up time and improving response to temperature changes.
The AlN body spreads heat across the surface instead of allowing it to remain concentrated around the circuit, helping reduce hot and cold spots.
The ceramic body isolates the internal circuit from the working surface, which is important when the heater is installed close to sensitive electrical components.
The heater remains stable through heating and cooling, making it well suited to close-contact heating and assemblies with limited installation space.
When operated within the specified temperature and load range, the heater delivers consistent performance over repeated heating and cooling cycles.
Heating, insulation, and structural support are combined in one ceramic part, reducing the need for separate insulating layers and heating components.
The values below are typical references. Final specifications will depend on the heater size, circuit layout, operating atmosphere, mounting method, and working conditions.
| Parameter | Technical Indicator | Remarks |
|---|---|---|
| Base Material | Aluminum Nitride (AlN) | High-purity crystalline ceramic |
| Thermal Conductivity | 170–230 W/(m·K) | Approximately 7–8 times higher than typical alumina |
| Heating Material | Tungsten (W) / Molybdenum (Mo) | Co-fired integrated resistance circuit |
| Maximum Operating Temperature | 600°C–1000°C | Higher operating temperatures may require an inert atmosphere |
| Temperature Uniformity | ≤ ±1% | Depends on heater size, circuit layout, and measurement conditions |
| Thermal Expansion | 4.5 × 10−6/K | Close to the thermal expansion of silicon |
| Insulation Resistance | ≥ 1012 Ω·cm | Reliable electrical insulation |
| Dielectric Strength | ≥ 15–20 kV/mm | Depends on thickness, temperature, and test method |
| Surface Flatness | ≤ 20 μm | Available for precision contact-heating surfaces |
| Property | Aluminum Nitride Heater | Alumina Heater | Silicon Nitride Heater | Silicon Carbide Heater |
|---|---|---|---|---|
| Thermal Conductivity | Very high | Moderate | Moderate to high | High |
| Electrical Insulation | Excellent | Excellent | Excellent | Depends on material grade |
| Thermal Response | Fast | Moderate | Fast | Designed for high-temperature heating |
| Temperature Uniformity | Well suited to precision heating surfaces | Suitable for general heating | Stable during thermal cycling | Depends on heater construction |
| Thermal-Shock Resistance | Good | Moderate | Excellent | Good |
| Mechanical Strength | Good | Good | Excellent | High |
| Main Advantage | Fast heat transfer and even heating | Cost-effective and versatile | High strength and thermal-shock resistance | Reliable performance at high temperatures |
| Typical Applications | Precision thermal control and testing | General ceramic heating elements | Industrial heating and repeated thermal cycling | Industrial furnaces and high-temperature processes |
Aluminum nitride transfers heat quickly while remaining electrically insulating. This helps the working surface reach temperature faster and reduces uneven heating.
Aluminum nitride generally offers faster heat transfer and better temperature uniformity. Alumina is more economical and works well for many general heating applications.
The typical range is 600°C–1000°C. The actual limit depends on the circuit design, watt density, mounting method, and atmosphere. Operation near the upper end of the range may require an inert atmosphere.
Yes. The heater can use a single-zone or multi-zone circuit. Sensor type, location, and connection method can also be reviewed according to the temperature-control requirements.
Please send the drawing, dimensions, voltage, rated power or resistance, target temperature, heated area, working atmosphere, temperature-uniformity requirement, terminal details, and expected quantity.
Yes. We work with OEM customers in the USA, Germany, Japan, and Europe. We can review the drawings and operating requirements before quoting for samples or production quantities.
Standard geometries usually take 60–90 days. Multi-zone or high-precision heaters generally take 90–120 days, depending on circuit design, inspection requirements, and order quantity.
