What is aluminum clad pcb?

An aluminum clad PCB (Printed Circuit Board) is a type of circuit board that has a layer of aluminum on its surface.

This layer of aluminum provides a number of benefits, including improved heat dissipation,

increased mechanical strength, and enhanced electromagnetic shielding.

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Email is : mcpcb@andwinmcpcb.com


What Is aluminum clad pcb?

The aluminum layer is typically bonded to the PCB using a thermal adhesive, which allows for efficient heat transfer from the board to the aluminum layer.
This is particularly useful in applications where high power components are being used, as it helps to prevent overheating and damage to the components.

In addition to its thermal properties, the aluminum layer also provides increased mechanical strength to the PCB.
This makes it more resistant to bending and flexing, which can be important in applications where the board will be subjected to vibration or other mechanical stresses.

Finally, the aluminum layer can also provide enhanced electromagnetic shielding, which can help to reduce interference from other electronic devices.
This is particularly important in applications where the PCB will be used in close proximity to other sensitive electronic equipment.

Overall, aluminum clad PCBs are a popular choice for a wide range of applications, including power electronics, LED lighting, and automotive electronics.

Types of aluminum clad pcb

  1. Single-sided aluminum clad board:
    This type of board has a layer of aluminum on one side and a substrate material on the other side.
  2. Double-sided aluminum clad board:
    This type of board has a layer of aluminum on both sides and a substrate material in the middle.
  3. Multilayer aluminum clad board:
    This type of board has multiple layers of aluminum and substrate material, which can be arranged in various configurations.
  4. High-frequency aluminum clad board:
    This type of board is designed for high-frequency applications and has a special substrate material that provides excellent electrical performance.
  5. LED aluminum clad board:
    This type of board is specifically designed for LED lighting applications and has a high thermal conductivity to dissipate heat generated by the LEDs.
  6. Copper-clad aluminum board:
    This type of board has a layer of copper on one or both sides and a layer of aluminum on the other side. It is used in applications where both high electrical conductivity and thermal conductivity are required.

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 clad pcb material

Aluminum circuit boards are used in various applications, including LED lighting, power electronics, automotive industry, aerospace, and military equipment.

They are also used in high-temperature and high-power applications due to their excellent thermal conductivity and low thermal expansion coefficient.

Aluminum circuit boards are also used in consumer electronics such as smartphones, tablets, and laptops.

Benefits Of aluminum clad pcb

The role of aluminum circuit boards is to provide a stable platform for electronic components to be mounted and connected.

They are designed to provide excellent thermal conductivity, which allows heat to be dissipated quickly from the electronic components.

This is important because electronic components generate heat during operation, and if the heat is not dissipated efficiently, it can cause the components to fail or reduce their lifespan.

Aluminum circuit boards also provide a low-cost solution for high-power and high-temperature applications. They are lightweight and durable,

making them ideal for use in the automotive and aerospace industries. Additionally, aluminum circuit boards are resistant to corrosion, which makes them suitable for use in harsh environments.

Overall, the role of aluminum circuit boards is to provide a reliable and efficient platform for electronic components to operate, while also ensuring that they are protected from heat and other environmental factors.

Applications Of aluminum clad pcb

Aluminum clad boards are commonly used in electronic circuit boards, particularly in high-power LED lighting applications, power supplies, and automotive electronics. They are also used in the aerospace industry for heat dissipation in electronic systems.

– 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
StandardAdvanced
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/
Lines/spacesMinimum0.2mm/0.2mm0.15mm/0.15mm
MaterialChao Shun(CCAF)(China)Yes/
Hua Dian(China)Yes/
Chin Shi(TaiWan)Yes/
Ventec(TaiWang)Yes/
ITEQ(Tai Wan)Yes/
ShengYi(China)Yes/
Laird(US)Yes/
Bergquist(US)Yes/
Other brand per customerYes/
Final finishingHASL Lead FreeYes/
HASLYes/
ENIGYes/
ENIPIGYes/
OSPYes/
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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