Aluminum Nitride Substrate

Aluminum Nitride Substrate

Aluminum Nitride Substrate

  • Purity: 95%-99%
  • Custom sizes and standard sizes in stock
  • Quick Lead Time
  • Competitive Price

Aluminum Nitride Substrate is a high-performance ceramic material with exceptional thermal conductivity, electronic insulation, and high-temperature resistance. It is widely applied in high-power electronic devices, LED packaging, microwave circuits, and automotive and aerospace electronic systems. As a leading supplier and manufacturer of premium alumina products, Shanghai Yuepeng can supply high-quality aluminum nitride substrates with various specifications and competitive prices, offering customized solutions to meet specific requirements.

Aluminum Nitride Substrate Data Sheet

Reference Code:HM1914
Purity:95%-99%
Density:3.32 g/cm3
Appearance:Dark Gray / Light Gray / Beige
Dimensions:Customized
Shape:Rectangular, Round, or customized
Surface Finish:Rough, Polishing, or Metallization

Aluminum Nitride Substrate Description

Aluminum Nitride (AlN) Substrate is made of high-purity aluminum nitride ceramic. It can provide efficient thermal management in high-temperature environments, along with low dielectric loss and excellent thermal shock resistance. Shanghai Yuepeng can provide bulk molding and custom single-piece options to meet diverse industrial and research requirements, offering flexible and rapid customization of product size and scale.

Aluminum Nitride Substrate Properties

ItemUnitAlN-170AlN-190AlN-200AlN-230
Densityg/cm33.33.33.283.3
Melting Point25002500
Surface Roughnessμm0.2~0.60.3~0.50.2~0.50.2~0.6
ThermalThermal Conductivity25℃ W/(m.k)170-190190-210204233
Coefficient of thermal expansion20~300℃ (10-6/℃)4.64.64.0-5.04.0-5.0
ElectricalDielectric Constant1 MHz, 25℃8.568.56
Dielectric Loss1 MHz, 25℃4.6×10-44.6×10-4
Volume resistivity20℃.Ω.cm1.4×10141.4×1014>1014>1014
Dielectric StrengthKV/mm≥15≥15>20>20
MechanicalFlexural  StrengthMpa300-400300-400350300
Elastic ModulusGPa310-320310-320
Warpage~/25(length)≤3‰≤3‰≤3‰≤3‰

Aluminum Nitride Substrate Standard Specifications

ProductThickness Length & Width
170W Standard Product0.381 mm4×4 inch (101.6×101.6 mm)
4.5×4.5 inch (114.3×114.3 mm)
120×120 mm
5×5 inch (127×127 mm)
5.5×7.5 inch (139.7×190.5 mm)
0.5 mm
0.635 mm
1.0 mm
1.5 mm
170W Non-standard Product0.1~0.2 mm2×2 inch (50.8×50.8 mm)
0.2~0.3 mm2×2 inch (50.8×50.8 mm)
3×3 inch (76.2×76.2 mm)
4×4 inch (101.6×101.6 mm)
4.5×4.5 inch (114.3×114.3 mm)
2.0~3.0 mm
1.0~3.0 mm150 mm, 200 mm, 300 mm
200W(0.3~0.38)±0.01 mm4.5×4.5 inch (114.3×114.3 mm)
230W(0.3~0.38)±0.01 mm4.5×4.5 inch (114.3×114.3 mm)

Aluminum Nitride Substrate Advantages

  • More than 7 times the thermal conductivity of alumina.
  • The thermal expansion coefficient is close to silicon, ensuring high reliability for mounting large silicon chips and withstanding thermal cycling.
  • Excellent electrical insulation with a low dielectric constant.
  • Superior mechanical strength compared to alumina.
  • Excellent corrosion resistance to molten metals.
  • Minimal impurity content, non-toxic, and highly pure.

Aluminum Nitride Substrate Applications

  • Semiconductor Packaging: Aluminum nitride substrates provide high thermal conductivity and electrical insulation, making them ideal for integrated circuit packaging.
  • LED Devices: Used in LED modules and chip carriers to improve heat dissipation and extend device lifespan.
  • Power Electronics: Applied in high-power transistors, diodes, and IGBT modules to ensure stable operation under heavy thermal loads.
  • Microwave and RF Components: Suitable for antennas, filters, and amplifiers due to low dielectric loss and excellent thermal management.
  • Automotive and Aerospace Electronics: Utilized in control units, sensors, and radar systems where reliability under extreme conditions is essential.

Aluminum Nitride Material Properties

PropertyUnitHMAN1000HMAN2000HMAN3000HMAN4000HMAN1000S
Densityg/cm33.323.323.323.303.30
Young’s ModulusGPa 300-350300-350300-350300-350350
Fracture Toughness KICMPa m1/23332.53
Poisson’s Ratio 0.220.220.220.220.22
Compressive StrengthMPa30003000300030003000
Flexural Strength @ 25°CMPa350350350350350
HardnessGPa1010101211

PropertyUnitHMAN1000HMAN2000HMAN3000HMAN4000HMAN1000S
Thermal Conductivity @ 25°CW/mK170200230200170
CTE 25°C ➞ 400°C10-6/K4.54.54.53.54.6
Max Temperature (Air)°C12001200120012001200
Max Temperature (Inert)°C12001200120012001200

PropertyUnitHMAN1000HMAN2000HMAN3000HMAN4000HMAN1000S
Dielectric Constant1 MHz8.88.88.58.58.8
Dielectric Loss1 MHz5×10-45×10-45×10-45×10-45×10-4
Dielectric Strength DC @ 25°CkV/mm1515151514
Volume Resistivity @ 25°Cohm-cm >1013>1013>1013 >1014 >1014

Aluminum Nitride Material Grades

HMAN1000 is our standard high purity aluminium nitride with a thermal conductivity of 170 W/mK. This is the same thermal performance as our substrate material but offers the possibility of larger pieces in length/width and in thicknesses up to 30mm.
HMAN1000 has good coefficient of thermal expansion – matched to silicon and gallium nitride over wide temperature ranges.

HMAN100 Applications:

  • High power insulators
  • Laser components
  • Water cooled heatsinks
  • Power electronics
  • Aerospace, medical and semiconductor components

HMAN1000S 170 W/mK is our standard high thermal conductivity substrate material, However, other high-performance grades are also available.

HMAN1000S Applications:

  • Heat sinks
  • Heat spreaders
  • Laser heatsinks power rectifiers
  • Aerospace, power electronics, rectifiers

HMAN2000 is one of our enhanced grades of aluminium nitride, offering all the mechanical performance of HMAN1000 with the enhanced benefits of 200 W/mK thermal conductance.

HMAN2000 Applications:

  • Heat sinks
  • Heat spreaders
  • Laser heatsinks power rectifiers
  • Aerospace, power electronics, rectifiers

HMAN3000 is one of our enhanced grades of aluminium nitride offering, all the mechanical performance of HMAN1000 with the enhanced benefits of 230 W/mK thermal conductance.

HMAN3000 Applications:

  • Heat sinks
  • Heat spreaders
  • Laser heatsinks power rectifiers
  • Aerospace, power electronics, rectifiers

HMAN4000 is one of our enhanced grades of aluminium nitride offering, all the mechanical performance of HMAN1000 with the enhanced benefits of 200 W/mK thermal conductance.

HMAN4000 Applications:

  • Heat sinks
  • Heat spreaders
  • Laser heatsinks power rectifiers
  • Aerospace, power electronics, rectifiers

Aluminum Nitride Ceramic Machining

Aluminum Nitride Ceramic Machining

Aluminum Nitride (AlN) ceramic machining is a precise process used to fabricate high-performance components from aluminum nitride materials. Machining aluminum nitride ceramics requires specialized equipment and techniques to handle their brittleness and hardness. Proper tooling and controlled environments are essential to avoid material damage and achieve the desired surface finish and dimensional accuracy. The common machining methods are as follows:

  • Diamond Cutting: Diamond tools are used to achieve fine precision and smooth surface finishes, ideal for complex shapes.
  • Laser Cutting: A non-contact method used for intricate shapes, with high precision and minimal thermal impact.
  • Precision Grinding: Utilized to achieve fine tolerances and surface finishes. Requires special care to prevent cracking or chipping due to the ceramic’s brittleness.
  • Wire EDM (Electrical Discharge Machining): A method often used for intricate cutting, especially for thin and complex geometries.

Aluminum Nitride Ceramic Packaging

Aluminum Nitride Ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.

ceramic packing

Get A Quote

We will check and get back to you in 24 hours.

To To customize your aluminum nitride substrate, please provide the following details:

  1. Dimensions: Length, Width, Thickness, etc.
  2. Hole/Slot Requirements: Specify the size and position of the holes and slots or other features.
  3. Tolerances: Specify the required tolerances.
  4. Purity of the material
  5. Temperature Requirements: Specify the maximum operating temperature.
  6. Electrical Properties: Insulation resistance, dielectric strength, etc.
  7. Application: Indicate the intended application or industry to help determine the specific type.
  8. Surface Finishes: Polished, rough, etc.
  9. Quantity of the products you need
  10. Alternatively, you can provide a drawing with your specifications.

Once we have these details, we can provide you with a quote within 24 hours.

We carry a wide variety of aluminum nitride products in stock, and for these, there is generally no minimum order requirement. However, for custom orders, we typically set a minimum order value of $200. The lead time for stock items is usually 1-2 weeks, while custom orders usually take 3-4 weeks, depending on the specifics of the order.

Absolutely. Their low dielectric loss and high thermal stability make them suitable for antennas, filters, and RF power amplifiers.

Yes, they are used in control units, sensors, and radar systems where high reliability is required under extreme thermal and mechanical conditions.

Shanghai Yuepeng Tech, established in 2022 in Shanghai, China, is a specialized supplier and manufacturer of aluminum nitride products. With extensive expertise in supply and export, we offer competitive pricing and customized solutions tailored to specific requirements, ensuring outstanding quality and customer satisfaction. As a professional provider of refractory metals, specialty alloys, spherical powders, and various advanced materials, we serve the research, development, and large-scale industrial production needs of the scientific and industrial sectors.

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