What is aluminum pcb stackup?

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 stackup?

An aluminum PCB stackup typically consists of a base layer of aluminum, a dielectric layer, and a copper layer. The aluminum layer provides thermal management and acts as a heat sink, while the copper layer provides electrical conductivity.

The dielectric layer serves as an insulator between the aluminum and copper layers. The thickness of each layer can vary depending on the specific application and requirements. Generally, aluminum PCBs are used in high-power applications where heat dissipation is critical.

where is the aluminum pcb stackup used?

Aluminum PCB stackup is used in a variety of applications where high power and efficient heat dissipation are required. Some common applications of aluminum PCB stackup include:

  1. LED lighting: Aluminum PCBs are commonly used in LED lighting applications as they can handle high power and effectively dissipate heat, which is important for prolonging the lifespan of LEDs.
  2. Power electronics: Aluminum PCBs are also used in power electronics applications such as power supplies, motor controllers, and inverters, where high power and efficient heat dissipation are critical for reliable performance.
  3. Automotive industry: Aluminum PCBs are used in automotive applications such as electronic control units (ECUs), which require high power and reliable performance in harsh environments.
  4. Aerospace industry: Aluminum PCBs are also used in the aerospace industry, where they can handle high power and effectively dissipate heat in electronic systems used in aircraft and spacecraft.

Overall, aluminum PCB stackup is used in a wide range of applications where high power and efficient heat dissipation are required for reliable performance.

the role of aluminum pcb stackup

The role of an aluminum PCB stackup is to provide a high-performance printed circuit board that can handle high-power applications while effectively managing heat dissipation.

The aluminum layer in the stackup acts as a heat sink, which helps to dissipate heat generated by high-power components on the board.

This helps to prevent overheating and damage to the components. The copper layer provides electrical conductivity, allowing the board to transmit electrical signals between components.

The dielectric layer provides insulation between the aluminum and copper layers, preventing electrical shorts and ensuring reliable performance.

Overall, the aluminum PCB stackup is designed to provide a reliable, high-performance solution for high-power applications that require efficient heat dissipation.

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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