What is aluminium core pcb?

An aluminium core PCB (Printed Circuit Board) is a type of PCB that has an aluminium substrate as its base material instead of the traditional FR4 (fiberglass reinforced epoxy) material.

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

What Is aluminium core pcb?

The aluminium core provides better thermal conductivity and heat dissipation capabilities, making it suitable for applications that require high power and high temperature resistance, such as LED lighting, power supplies, and automotive electronics.

The aluminium core PCB typically consists of three layers: a thin layer of copper for the circuitry, a dielectric layer for insulation, and an aluminium substrate for heat dissipation.
The copper layer is etched to create the desired circuitry, and the dielectric layer is applied to insulate the circuitry from the aluminium substrate. The aluminium substrate is then drilled and plated to create the necessary connections.

The advantages of using aluminium core PCBs include better thermal management, higher power handling capabilities, and improved reliability.
However, they can be more expensive than traditional FR4 PCBs and require special manufacturing processes.

Types of aluminum aluminium core pcb

  1. Single-sided aluminum core PCB
  2. Double-sided aluminum core PCB
  3. Multilayer aluminum core PCB
  4. Hybrid aluminum core PCB
  5. Metal-clad PCB (MCP)

Aluminum core pcb material

The most common material used for aluminum core PCBs is aluminum-clad laminate. This material consists of a thin layer of aluminum bonded to a non-conductive substrate, such as fiberglass or ceramic.

The thickness of the aluminum layer can vary depending on the application and required thermal conductivity. Other materials that can be used for the core of aluminum PCBs include copper, brass, and stainless steel.

These materials are typically more expensive and are used for specialized applications where higher thermal conductivity is required.

Where is the aluminum core PCB used?

Aluminum core PCBs are used in a wide range of applications where high thermal conductivity and efficient heat dissipation are required. Some common applications include:

  1. LED lighting:
    Aluminum core PCBs are commonly used in LED lighting applications due to their ability to dissipate heat quickly and efficiently, which helps to prolong the lifespan of the LED.
  2. Automotive industry:
    Aluminum core PCBs are used in various automotive applications, such as engine control units, power modules, and lighting systems.
  3. Power electronics:
    Aluminum core PCBs are used in power electronics applications, such as power supplies, motor drives, and inverters, where high power density and efficient heat dissipation are critical.
  4. Aerospace industry:
    Aluminum core PCBs are used in aerospace applications due to their lightweight and high thermal conductivity properties, which make them ideal for use in electronic systems that are exposed to high temperatures and harsh environments.
  5. Medical equipment:
    Aluminum core PCBs are used in medical equipment, such as imaging systems and diagnostic equipment, where high thermal conductivity and reliable performance are critical.

Applications Of aluminium core 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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