What is aluminum foil pcb?

Aluminum foil PCB (Printed Circuit Board) is a type of circuit board that uses aluminum foil as the base material instead of traditional fiberglass or epoxy resin.

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

What Is aluminum foil pcb?

The aluminum foil is coated with a layer of copper and then etched to create the circuit pattern. This type of PCB is commonly used in low-cost and low-power applications, such as LED lighting, power supplies, and small electronic devices. Aluminum foil PCBs are easy to manufacture and can be made in small quantities, making them ideal for prototyping and DIY projects. They are also lightweight and have good thermal conductivity, making them suitable for applications that require heat dissipation.

Types of aluminum foil pcb

There are several types of aluminum foil PCBs, including:

  1. Single-sided aluminum foil PCB: This type of PCB has a copper layer on one side of the aluminum foil substrate.
  2. Double-sided aluminum foil PCB: This type of PCB has a copper layer on both sides of the aluminum foil substrate.
  3. Multilayer aluminum foil PCB: This type of PCB has multiple layers of aluminum foil and copper, with each layer connected by vias.
  4. Flexible aluminum foil PCB: This type of PCB is made of a flexible aluminum foil substrate that can be bent or twisted to fit into tight spaces.
  5. Rigid-flex aluminum foil PCB: This type of PCB combines the flexibility of a flexible PCB with the rigidity of a traditional PCB, making it suitable for complex designs.

the role of aluminum foil pcb

Aluminum foil PCBs have several important roles in electronic circuits, including:

  1. Heat dissipation: Aluminum is an excellent conductor of heat, which makes it an ideal material for PCBs that need to dissipate heat quickly. Aluminum foil PCBs can help prevent overheating and damage to electronic components.
  2. Signal integrity: Aluminum foil PCBs can provide a stable and reliable signal path for high-frequency circuits. The smooth surface of the aluminum foil substrate helps to reduce signal interference and noise.
  3. Durability: Aluminum foil PCBs are strong and durable, which makes them suitable for use in harsh environments. They can resist temperature changes, moisture, and vibration, which helps to extend the lifespan of electronic devices.
  4. Cost-effectiveness: Aluminum foil PCBs are less expensive than other types of PCBs, making them a cost-effective option for many applications.

Overall, aluminum foil PCBs play a critical role in ensuring the performance, reliability, and longevity of electronic circuits.

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.

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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