What is aluminum backed pcb?

Aluminum backed PCB (printed circuit board) is a type of PCB that has an aluminum substrate material as its base.

The aluminum substrate provides a high level of thermal conductivity, which makes it an ideal choice for applications that require efficient heat dissipation.

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


What Is aluminum backed pcb?

The aluminum substrate is typically bonded to a layer of copper, which is used to create the circuitry on the PCB. The copper layer is then coated with a layer of solder mask and silk screen to protect the circuitry and provide labeling.

Aluminum backed PCBs are commonly used in high-power LED lighting, power supplies, automotive electronics, and other applications that generate a significant amount of heat.

The aluminum substrate helps to dissipate the heat generated by the components on the PCB, which can improve the reliability and lifespan of the electronics.

Multilayer metal core pcb

Multilayer MCPCB could layout more circuit, the MCPCB smaller much.

One of the key benefits of aluminum backed PCBs is their ability to handle high currents and high temperatures. The aluminum substrate can handle temperatures up to 150°C, which is much higher than traditional FR-4 PCBs.
Additionally, the high thermal conductivity of the aluminum substrate allows for efficient heat transfer, which can help to prevent thermal runaway and other issues that can arise from excessive heat.

Where is the aluminum backplane used?

Aluminum backplanes are commonly used in electronic devices such as computers, servers, and telecommunications equipment.

They provide a stable and durable mounting surface for electronic components such as circuit boards, power supplies, and cooling systems.

Aluminum backplanes are also used in the aerospace and automotive industries for their lightweight and high-strength properties.

The role of the aluminum backplane

The aluminum backplane plays a crucial role in providing a stable and durable mounting surface for electronic components in various electronic devices.

It serves as a structural support for the internal components of the device, such as circuit boards, power supplies, and cooling systems.

The backplane also provides a grounding path for the electronic components, which is essential for proper functioning and safety.

Additionally, aluminum backplanes are known for their excellent thermal conductivity, which helps to dissipate heat generated by the electronic components and maintain optimal operating temperatures.

Overall, the aluminum backplane is a critical component that helps to ensure the reliable and efficient operation of electronic devices.

Applications Of aluminum backed 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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