What is aluminum pcb ?

An aluminium PCB board is a type of printed circuit board (PCB) that uses an aluminium substrate instead of a traditional fibreglass or epoxy substrate.

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

What Is aluminum pcb ?

Aluminum PCBs are commonly used in applications that require high power and high thermal conductivity, such as LED lighting, power supplies, and automotive electronics.

The aluminum substrate is typically coated with a thin layer of dielectric material, such as ceramic or epoxy, which provides electrical insulation and allows for the creation of conductive traces and vias.

The conductive traces are typically made of copper, and they are etched onto the surface of the substrate using a chemical process. The resulting aluminum PCB is a highly reliable and efficient circuit board that can withstand high temperatures and harsh environments.

Types of aluminum pcb

  1. Standard Aluminum Substrate:
    This is the most commonly used type of aluminum substrate, which has a thickness of 1.6 mm and a thermal conductivity of 1.0-1.5 W/mK.
  2. High Thermal Conductivity Aluminum Substrate:
    This type of substrate has a higher thermal conductivity of 2.0-3.0 W/mK, making it suitable for high-power applications.
  3. Ultra-Thin Aluminum Substrate:
    This substrate has a thickness of 0.5-1.0 mm, making it ideal for applications where space is limited.
  4. Copper-Clad Aluminum Substrate:
    This substrate has a layer of copper on one or both sides, providing better electrical conductivity and heat dissipation.
  5. Ceramic-Clad Aluminum Substrate:
    This substrate has a layer of ceramic on top of the aluminum substrate, providing better insulation and thermal management.
  6. Flexible Aluminum Substrate:
    This substrate is flexible and can be bent or shaped to fit into tight spaces, making it ideal for applications where flexibility is required.

Where is the aluminum substrate used?

Aluminum substrates are used in a variety of applications due to their unique properties. Some common uses of aluminum substrates include:

  1. Printed Circuit Boards (PCBs):
    Aluminum substrates are used as the base material for PCBs due to their excellent thermal conductivity, electrical insulation properties, and high strength.
  2. LED Lighting:
    Aluminum substrates are used in LED lighting applications due to their ability to dissipate heat, which helps to prolong the life of the LED.
  3. Automotive:
    Aluminum substrates are used in automotive applications such as engine components, heat shields, and exhaust systems due to their lightweight, high strength, and corrosion resistance.
  4. Solar Panels:
    Aluminum substrates are used in solar panel applications due to their ability to reflect sunlight and resist corrosion.
  5. Consumer Electronics:
    Aluminum substrates are used in consumer electronics such as smartphones, tablets, and laptops due to their lightweight, high strength, and ability to dissipate heat.

Overall, aluminum substrates are used in a wide range of industries and applications due to their unique combination of properties.

Applications Of aluminum 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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