What is multi layer aluminum pcb?

A multi-layer aluminum PCB is a printed circuit board made up of multiple layers of aluminum and other materials such as copper, dielectric layers, and solder mask.

These PCBs are used in applications where high thermal conductivity is required, such as in LED lighting, power electronics, and automotive applications.

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


What Is multi layer aluminum pcb?

A multi-layer aluminum PCB (Printed Circuit Board) is a type of PCB that consists of multiple layers of aluminum material sandwiched between layers of insulating material. The aluminum layers are used for both electrical conductivity and heat dissipation.

These types of PCBs are commonly used in high-power LED lighting, automotive electronics, and other applications where heat dissipation is a critical factor. The number of layers in a multi-layer aluminum PCB can vary depending on the complexity of the circuit design and the required thermal management.

Types of multi layer aluminum pcb

There are several types of multi-layer aluminum PCBs, including:

  1. Standard Multi-Layer Aluminum PCB: This type of PCB has multiple layers of aluminum material sandwiched between layers of insulating material. It is commonly used in high-power LED lighting, automotive electronics, and other applications where heat dissipation is a critical factor.
  2. Hybrid Multi-Layer Aluminum PCB: This type of PCB combines the benefits of aluminum and copper, allowing for better heat dissipation and electrical conductivity. It is commonly used in high-power applications such as power supplies, motor drives, and inverters.
  3. Metal Core Multi-Layer Aluminum PCB: This type of PCB has a metal core layer sandwiched between layers of insulating material and aluminum layers. It is commonly used in high-power LED lighting and automotive electronics.
  4. Flexible Multi-Layer Aluminum PCB: This type of PCB is flexible and can be bent or twisted to fit into tight spaces. It is commonly used in wearable electronics, medical devices, and other applications where flexibility is required.
  5. Rigid-Flex Multi-Layer Aluminum PCB: This type of PCB combines the benefits of rigid and flexible PCBs, allowing for both flexibility and rigidity in the same board. It is commonly used in aerospace, military, and medical applications.

the role of multi layer aluminum pcb

Multi-layer aluminum PCBs play a crucial role in electronic circuits. They are used in a wide range of applications, including power electronics, LED lighting, automotive, aerospace, and telecommunications.

The primary function of multi-layer aluminum PCBs is to provide a compact and efficient way to connect electronic components. They offer a high level of thermal conductivity, which helps to dissipate heat generated by the components. This is especially important in power electronics, where high currents and voltages can generate a significant amount of heat.

Multi-layer aluminum PCBs also provide a high level of reliability and durability. They are resistant to environmental factors such as moisture, dust, and temperature fluctuations, which can damage electronic components. This makes them ideal for use in harsh environments such as automotive and aerospace applications.

In addition, multi-layer aluminum PCBs offer a high level of design flexibility. They can be designed to accommodate a wide range of component sizes and shapes, and can be customized to meet specific application requirements.

Overall, the role of multi-layer aluminum PCBs is to provide a reliable, efficient, and flexible way to connect electronic components in a wide range of applications.

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
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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