What is aluminum nitride pcb?

An aluminum nitride PCB is a type of printed circuit board that uses aluminum nitride as the substrate material instead of traditional materials like FR-4 or ceramic.

Aluminum nitride has excellent thermal conductivity, which makes it ideal for high-power applications where heat dissipation is critical.

It also has good electrical insulation properties and is resistant to corrosion and chemical attack.

Andwin provide thermal pad metal core PCB for customer, email us now for you PCB quote,
Email is : mcpcb@andwinmcpcb.com

What Is aluminum nitride pcb?

Aluminum nitride PCBs are commonly used in high-power electronic devices such as power amplifiers, power supplies, and LED lighting.

They are also used in microwave and RF applications due to their low dielectric loss and high thermal conductivity.

Additionally, aluminum nitride PCBs are used in the aerospace and defense industries due to their high reliability and durability in harsh environments.

Types of aluminum nitride pcb

  1. Direct Bonded Copper (DBC) Aluminum Nitride PCBs:
    In this type of PCB, a layer of copper is directly bonded to the aluminum nitride substrate using a high-temperature process.
    The copper layer serves as the conductive layer for the circuit. DBC aluminum nitride PCBs are commonly used in high-power applications where heat dissipation is critical.
  2. Thick Film Aluminum Nitride PCBs:
    In this type of PCB, a layer of aluminum nitride is coated with a thick film of conductive material such as silver or gold.
    The thick film serves as the conductive layer for the circuit. Thick film aluminum nitride PCBs are commonly used in low to medium power applications where cost is a concern.

Both types of aluminum nitride PCBs offer excellent thermal conductivity, high electrical insulation, and resistance to corrosion and chemical attack.
They are also highly reliable and durable in harsh environments, making them ideal for use in a wide range of applications.

aluminum nitride pcb is used in a variety of applications, including:

Aluminum nitride circuit boards are used in high-power electronic devices such as power amplifiers, power supplies, and high-frequency circuits.

They are also used in the aerospace industry for their high thermal conductivity and low thermal expansion coefficient.

Additionally, aluminum nitride circuit boards are used in LED lighting, microwave devices, and other electronic applications that require high thermal conductivity and excellent electrical insulation properties.

Multilayer metal core pcb

Multilayer MCPCB could layout more circuit, the MCPCB smaller much.

This arrangement is made so that the heat can dissipate through the metal core and transmit to the chassis.

Most of the LED or analog devices are populated with considerably larger boards.
The surface of the boards finishes by dissipating the heat.

While using the MCPCBs, it is obliged to take proper caution because it is constructed with some complex and complicated metal layers laminated with FR4 based on glass material. 

The chemistry for lamination differs while the board is fabricated.
If the board is bonded properly then there might be voids below the lamination and caution is necessary.

The dissipated fixture of heat is anticipated from the metal core which is needed to be defined and designed carefully.

aluminum nitride pcb material

Aluminum substrate material is a type of metal substrate used in various applications, such as printed circuit boards (PCBs), heat sinks

, solar panels, automotive parts, and building materials.

It is made of a thin layer of aluminum that is bonded to a non-conductive base material, such as ceramic or fiberglass.

The thickness of the aluminum layer can vary depending on the specific application, but it is typically between 0.5 and 3.0 mm.

The aluminum substrate material provides several advantages, including high thermal conductivity, excellent heat dissipation, lightweight, and corrosion resistance.

These properties make it an ideal choice for applications that require efficient heat management and durability.

Benefits Of aluminum nitride pcb

The role of aluminum nitride circuit board is to provide a substrate for electronic components and to facilitate the flow of electrical signals between them.

Aluminum nitride circuit boards have several advantages over traditional circuit boards made of materials such as fiberglass or ceramic.

One of the main advantages of aluminum nitride circuit boards is their high thermal conductivity, which allows them to dissipate heat more efficiently than other materials.

This is particularly important in high-power electronic devices, where excessive heat can damage components and reduce their lifespan.

Aluminum nitride circuit boards also have a low coefficient of thermal expansion, which means they are less likely to warp or crack when exposed to temperature changes.

This makes them ideal for use in environments where temperature fluctuations are common, such as in the aerospace industry.

Finally, aluminum nitride circuit boards have excellent electrical insulation properties, which means they can be used in high-voltage applications without the risk of electrical arcing or short circuits.

Overall, the role of aluminum nitride circuit boards is to provide a reliable and efficient substrate for electronic components in a wide range of applications.

Applications Of aluminum nitride pcb

The technology of the metal core PCB is ideal for its applications that generate immense heat and have difficulty being cool down using conventional fans or other cooling methods.

MCPCBs play an integral role to achieve a high illumination with fewer requirements than LEDs require.
The fabrication process of metal core PCB is helpful for the applications
Since the MCPCBs are most often used in LED technologies for producing a certain illumination the light-emitting diodes releases the heat in applications like:

– General lighting
– Automotive systems
– Industrial, telecom, power supplies, and high voltage regulators types of power converters
– Photovoltaic
– Street safety lightings and streetlights
– Backlight applications

Military and aerospace are another two other sectors appropriate to utilize the benefits of metal core PCBs in their applications.

These sectors are quite sensitive and need to endure frequent thermal cycling, limits of temperature and humidity, along with repeated mechanical shocks.

The MCPCB deals according to the operational requirements only if better structural veracity and thermal conductivity enabling withstanding greater shocks.

The higher the conductivity of thermal, the better it is for the temperature distribution throughout the boards as it ensures a uniform for thermal cycling.

It also stops forming hot spots before near to the active components.
Other than these, MCPCB works great in solar panels and motion control applications.

The combination of a metal core with HDI PCB technology can create an advanced circuit technology including microwave RF PCB, flex PCB, and rigid-flex PCBs.

As the demand for PCBs is high due to the remarkable benefits, the metal core PCB is the most widely used one among all the others.

It ensures high circuitry density, thermal management, and enhanced reliability for enhanced performance.

Thermal conductivity of 2 Layers thermal Pad MPCB

Thermal pad area is 385 W/m.k

Capability of Metal core PCB

Metal core PCB Capability
ItemTechnical specification
Board thicknessMaximum (mm)3.05.0
Panel sizeMaximum (mm)600×1170/
Layer countAluminum PCB1-8L10 L
Copper PCB1-8L10 L
Iron PCB1/
ceramics PCB1-2/
Thermal ConductivityAluminum PCB(w/m.k)0.8 to 12
Copper PCB(w/m.k)2.0-378/
ceramics PCB(w/m.k)24
DrillingMinimum drill diameter (mm)1.00.8
2 Layer ALPCB Via0.3/
MaterialChao Shun(CCAF)(China)Yes/
Hua Dian(China)Yes/
Chin Shi(TaiWan)Yes/
ITEQ(Tai Wan)Yes/
Other brand per customerYes/
Final finishingHASL Lead FreeYes/
Immersion SilverYes/
Immersion Tin/YES

2 Layers direct thermal path copper core pcb application

2 Layers direct thermal path copper core pcb are designed to dissipate heat generated by high-power LEDs,
which helps to increase the lifespan of the LED and improve its performance.
The aluminium base acts as a heat sink, which absorbs and dissipates the heat generated by the LED.

The 2 Layers direct thermal path copper core pcb is made by laminating a thin layer of copper onto an copper substrate.
The copper layer is then etched to create the circuit pattern.
2 Layers direct thermal path copper core pcb for LED lighting applications are available in various sizes and thicknesses, depending on the specific requirements of the application.
They are also available in single-sided, double-sided, and multi-layered configurations.

About Andwin MCPCB

Andwin Ciurcuits MCPCB davision  set up on Feb. 2006.
Focus on  providing metal core PCB for customer
In LED field and power supply field.
We can meet all your MCPCB manufacturing needs,
From single-sided Aluminum to 
complex multilayered metal clad substrate PCBs
And from prototype through production.

The following is a list of the services and products 

We offer:
• Metal Core PCB
• Thermal PAD MCPCB
• Aluminum PCB
• Copper based PCB
• Double sided Aluminum PCB

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